CN108242836A

CN108242836A - Wireless power transmitter and its operating method

Info

Publication number: CN108242836A
Application number: CN201711392956.0A
Authority: CN
Inventors: 蔡瑢锡
Original assignee: LG Innotek Co Ltd
Current assignee: LG Innotek Co Ltd
Priority date: 2016-12-23
Filing date: 2017-12-21
Publication date: 2018-07-03
Also published as: KR101925308B1; JP2018108014A; KR20180074461A

Abstract

Wireless power transmitter is disclosed, including：Power transmission unit including transmitting coil；Change the power conversion unit of the power strength applied from outside；Control the charge mode of wireless power reception device and the control unit of charge capacity.Charge mode includes the first charge mode and the second charge mode.Control unit is configured to：It is performed control to based on the charge mode grouping received from wireless power reception device and charge mode is changed to the second charge mode from the first charge mode；It is grouped that external analyte detection is controlled to operate based on the reception electric power received from wireless power reception device；When charge mode is changed to the second charge mode from the first charge mode, control unit is based on the method for receiving the external analyte detection operation of electric power grouping change control.Charge mode grouping includes at least one of the information about external analyte detection operation dwell time, information of time about the weight information for the reception power value for receiving electric power grouping and about application weighting value information.

Description

Wireless power transmitter and its operating method

Technical field

The present invention relates to wireless power transmitter and its operating methods.

Background technology

Portable terminal such as portable phone and notebook computer include storage electric power battery and for pair The circuit that battery charges and discharges.It, should be from external charger to battery when it is expected to charge to the battery of terminal Supply electric power.

Example usually as battery and for electric power to be filled with to the electrically connected method between the charging unit in battery, There may be the terminal Supply Method using general power supply, this method is by general electrical power conversion into voltage corresponding with battery With electric current and by the terminal of battery to battery supplied electric energy.Terminal Supply Method uses physical cables or electric wire.Therefore, exist In the case that terminal Supply Method uses many equipment, a large amount of cable can occupy sizable working space and be difficult to cloth It puts, therefore appearance is bad.In addition, terminal Supply Method can cause such as following problems：Due to potential difference different between terminal The service life and performance of caused instantaneous discharge phenomenon, the damage caused by foreign matter and fire, naturally electric discharge and battery reduce.

In order to solve the problems, control method and the charging of the method using Wireless power transmission has recently been proposed System (hereinafter referred to as wireless charging system).Further, since the past is not equipped with setting substantially in some portable terminals Standby, consumer needs individually to buy the accessory of individual wireless charging receiver, therefore the demand to wireless charging system is relatively low, It is contemplated that the user of wireless charging can increase sharply.Additionally, it is contemplated that terminal manufacturer provide in the future fundamentally equipped with The wireless charging system of wireless charging function.

In general, wireless charging system is configured with wireless power transmitter and wireless power receiver, the wireless power hair Emitter supplies electric energy, the electricity that the wireless power receiver reception is supplied from wireless power transmitter in wireless power transmission method It can and be charged the battery using received electric energy.

Wireless charging system can be at least one wireless power transmission method such as electromagnetic induction method, EMR electromagnetic resonance side Method, radio frequency (RF) wireless power transmission method etc. transmit electric power.

For example, wireless power transmission method can be used performs the electromagnetic induction of charging based on electromagnetic induction principle is used The various wireless power transmission standards of method, wherein electromagnetic induction principle generate magnetic field for power transmitter coil and pass through this The influence in magnetic field senses electricity from receiver coil.Herein, the wireless power transmission standard of electromagnetic induction method can include nothing Micro USB Electricity Federation alliance (Wireless Power Consortium, WPC) or/and electric utility alliance (Power Matters Alliance, PMA) defined in electromagnetic induction method wireless charging technology.

As another example, wireless power transmission method can use EMR electromagnetic resonance method, which will be by The magnetic field of the transmitting coil generation of wireless power transmitter be tuned to particular resonant frequency and electric power is sent to positioned at low coverage Wireless power receiver from place.Herein, EMR electromagnetic resonance method can include based on as wireless charging technical standard tissue The wireless charging of resonance method that wireless power alliance (Alliance for Wireless Power, A4WP) normal structure defines Power technology.

As another example, wireless power transmission method can use RF wireless power transmission methods, and this method is by low electricity It can be added in RF signals and the RF signals including the low electric energy are emitted to the wireless power receiver at long range.

Propose the high-speed radio charging technique spent the time required to the wireless charging based on normal cable.However, in phase In the high-speed radio charging technique of pass technology, start to perform rapid charge, and overvoltage may occur in the transition period.

Invention content

Wireless power transmitter and its operating method according to embodiment can perform height in wireless power receiver Fast wireless charging.

Wireless power transmitter and its operating method according to embodiment can be based on request and wireless power receiver State adaptively change charge mode.

Wireless power transmitter and its operating method according to embodiment can be while high-speed radio charging be performed Prevent charging from interrupting.

Even if wireless power transmitter according to embodiment and its operating method when being changed to high-speed radio charging still Charging can be performed to wide charged area.

Wireless power transmitter and its operating method according to embodiment can prevent from working as base in high-speed radio charges Overvoltage occurs when controlling electric power in control erroneous packet.

Wireless power transmitter and its operating method according to embodiment can steadily be controlled in high-speed radio charging Electric power processed.

The purpose of the present invention is not limited to above-mentioned, and those skilled in the art are clearly understood that herein according to the following description The other purposes not described.

Wireless power transmitter according to embodiment includes：Power transmission unit including transmitting coil；Electrical power conversion Unit changes the power strength applied from outside；And control unit, the charge mode of control wireless power reception device And charge capacity；Wherein, charge mode includes the first charge mode and the second charge mode, and control unit is based on from wireless power Charge mode that reception device receives is grouped to be changed to second from the first charge mode by charge mode and fills to perform control to Power mode, control unit are grouped that external analyte detection is controlled to grasp based on the reception electric power received from wireless power reception device Make, when charge mode is changed to the second charge mode from the first charge mode, control unit is changed based on electric power grouping is received Become the method for controlling external analyte detection operation, and charge mode grouping includes the letter about external analyte detection operation dwell time Breath.

Included according to the wireless power transmitter of another embodiment：Power transmission unit including transmitting coil；Electric power Converting unit changes the power strength applied from outside；And control unit, control the charging of wireless power reception device Pattern and charge capacity；Wherein, charge mode includes the first charge mode and the second charge mode, and control unit is based on from wireless Charge mode that power receiving system receives is grouped is changed to the by charge mode to perform control to from the first charge mode Two charge modes, control unit are grouped to control external analyte detection based on the reception electric power received from wireless power reception device Operation, when charge mode is changed to the second charge mode from the first charge mode, control unit be based on receive electric power grouping come Change the method for controlling external analyte detection operation, and charge mode grouping is included about the information for receiving electric power weighted value.

Being wirelessly transmitted electric power to the wireless power transmission method of wireless power receiver according to embodiment includes： The charge mode and charge capacity of wireless power reception device are controlled, wherein, charge mode includes the first charge mode and second Charge mode is grouped to perform control to charge mode from the based on the charge mode that receives from wireless power reception device One charge mode is changed to the second charge mode, is grouped to control based on the reception electric power received from wireless power reception device External analyte detection operation when charge mode is changed to the second charge mode from the first charge mode, is grouped based on electric power is received To change the method for controlling external analyte detection operation, and charge mode grouping includes operating dwell time about external analyte detection Information.

Being wirelessly transmitted electric power to the wireless power transmission method of wireless power receiver according to embodiment includes： The charge mode and charge capacity of wireless power reception device are controlled, wherein, charge mode includes the first charge mode and second Charge mode；It is grouped to perform control to charge mode from the based on the charge mode that receives from wireless power reception device One charge mode is changed to the second charge mode, is grouped to control based on the reception electric power received from wireless power reception device External analyte detection operation when charge mode is changed to the second charge mode from the first charge mode, is grouped based on electric power is received To change the method for controlling external analyte detection operation, and charge mode grouping is included about the information for receiving electric power weighted value.

Description of the drawings

During the application is further understood including attached drawing with providing in the present disclosure, and attached drawing is incorporated herein and The part of the application is formed, attached drawing shows embodiment in the present disclosure, and attached drawing is used to say together with specification Bright principle in the present disclosure.In the accompanying drawings：

Fig. 1 is the block diagram for describing wireless charging system according to a kind of embodiment；

Fig. 2 is the block diagram for describing the wireless charging system according to another embodiment；

Fig. 3 is the figure for describing the sensing signal transmission process in wireless charging system according to a kind of embodiment；

Fig. 4 is the state transition graph for describing the wireless power transmission process defined in WPC standards；

Fig. 5 is the state transition graph for describing the wireless power transmission process defined in PMA standards；

Fig. 6 is the block diagram for describing the structure of wireless power transmitter according to a kind of embodiment；

Fig. 7 is for describing the block diagram of the structure of wireless power receiver to cooperate with the wireless power transmitter of Fig. 6；

Fig. 8 is the method for being modulated and demodulating to wireless power signal for describing according to a kind of embodiment Figure；

Fig. 9 is the figure for describing the packet format based on wireless power transmission process according to a kind of embodiment；

Figure 10 is for describing can be connect based on wireless power transmission process by wireless power according to a kind of embodiment The figure of a kind of grouping that receiving apparatus transmits in examination stage (ping phase)；

Figure 11 is the message for describing the mark grouping based on wireless power transmission process according to a kind of embodiment The figure of form；

Figure 12 is postponed for the Electric control based on wireless power transmission process described according to a kind of embodiment (hold-off) figure of the message format of grouping and configuration packet；

Figure 13 is for describing filling for asking to change based on wireless power transmission process according to a kind of embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 14 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 15 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 16 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 17 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 18 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 19 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 20 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode；

Figure 21 is for describing can be connect based on wireless power transmission process by wireless power according to a kind of embodiment A kind of grouping and the figure of the message format of grouping that receipts device transmits in the power transmission stage；

Figure 22 is the charge mode figure for describing change charge mode according to a kind of embodiment；

Figure 23 is the figure for describing the wireless charging method in wireless power receiver according to a kind of embodiment；

Figure 24 is the figure for describing the wireless charging method in wireless charging system according to a kind of embodiment；

Figure 25 is the figure for describing the wireless charging method in wireless power transmitter according to a kind of embodiment；

Figure 26 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment；

Figure 27 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment；

Figure 28 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment；

Figure 29 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment；

Figure 30 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment；

Figure 31 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment；

Figure 32 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment；

Figure 33 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment；

Figure 34 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment；

Figure 35 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment；

Figure 36 is the figure for describing wireless charging transmitting coil according to a kind of embodiment；

Figure 37 is for describing including in the wireless power transmitter including multiple coils according to a kind of embodiment The figure of three driving circuits of bridge-type inverter；

Figure 38 is for describing the wireless power for including a driving circuit and multiple coils according to a kind of embodiment The figure of transmitter；

Figure 39 is opened for the multiple of one of multiple coils that are connected to driving circuit described according to a kind of embodiment The figure of pass；

Figure 40 is the operational flowchart of wireless power transmitter according to a kind of embodiment；

Figure 41 is the figure for the structure for showing charge mode grouping according to a kind of embodiment；

Figure 42 shows the external analyte detection operation of wireless power transmitter according to a kind of embodiment；

Figure 43 shows the reception that wireless power transmitter according to a kind of embodiment is received from wireless power receiver Electric power is grouped and the respond packet to receiving electric power grouping；

Figure 44 is the signal shown between wireless power receiver according to a kind of embodiment and wireless power transmitter The flow chart of stream；

Figure 45 is the flow chart for the operation for showing wireless power transmitter according to a kind of embodiment；

Figure 46 is the figure for the structure for showing to be grouped according to the charge mode of another embodiment；

Figure 47 is the signal shown between wireless power receiver according to a kind of embodiment and wireless power transmitter The flow chart of stream；

Figure 48 is the flow chart for the operation for showing the wireless power transmitter according to another embodiment；

Figure 49 is the figure for the structure for showing to be grouped according to the charge mode of another embodiment；

Figure 50 is the signal between the wireless power receiver and wireless power transmitter shown according to another embodiment The flow chart of stream；And

Figure 51 is the flow chart for the operation for showing the wireless power transmitter according to another embodiment.

Specific embodiment

Hereinafter, the equipment for applying embodiment and various methods are more fully described with reference to the accompanying drawings.It considers It is easy to describe in the description, specifies or used about the suffix " module " of element and " unit " herein, and suffix " mould Block " is with " unit " without the meaning or effect being distinguished from each other.

In following present disclosure, form all elements of embodiment can be described as being coupled into one or It is coupled to each other to be operated, but the present invention is not limited to such elements.That is, unless it is detached from purpose of the present invention model It encloses, otherwise all elements can be selectively coupled into one or more to be operated.It is in addition, every in all elements One may be implemented as a separate hardware, but some or all elements can be combined selectively, and can be with The computer program for including program module is implemented as, which performs combined one in one or more hardware The function of a little or whole elements.Those skilled in the art can easily infer the code and code that the computer program is configured Section.The computer program can be read or performed by computer readable storage medium, so as to fulfill embodiment.For the calculating The example of the storage medium of machine program can include magnetic recording media, optical recording medium, carrier media etc..

When describing embodiment, be described as being formed in above each element (on) or lower section (under) situation It is contacted directly to each other including two elements or is provided with one or more elements indirectly between the two elements.This Outside, be expressed as ... top (on) or ... lower section (under) situation can include it is downward relative to an element Direction and upwardly direction.

In following present disclosure, when describing element and including (either comprising or have) some elements, It should be appreciated that if being not specifically limited, which can only include (either comprising or have) these elements, Either an element can include (or comprising or have) other elements and these elements.Unless otherwise defined, it is no Then all terms (including technical terms and scientific terms) used herein have and illustrative embodiments fields The normally understood identical meaning of those of ordinary skill.It is to be further understood that it unless clearly limits herein, otherwise These terms such as defined in usually used dictionary should be interpreted as having with it in the contexts of the association area The consistent meaning of meaning, and will not be interpreted the meaning of idealization or too formal.

In the element of the description present invention, the term of first, second, A, B, (a), (b) etc. can be used.These arts Language is used only for distinguishing corresponding element with other elements, and corresponding element is not by the essence of its term, sequence Or the limitation of precedence.It should be understood that when element is referred to as " being connected to ", " being coupled to " or " access " another element When, which can be attached directly to either access another element or other elements can between these components " even Connect ", " coupling " or " access ".

When describing the present invention, because the detailed description of known technology related to the present invention can unnecessarily make this hair Bright main idea obscures, it is thus determined that its detailed description will be omitted.

When describing embodiment, for ease of description, for emitting the equipment of wireless power in wireless charging system It can be referred to as wireless power transmitter, wireless power transmission apparatus, transmitting terminal, transmitter, transmission device, emitting side or wireless Charging equipment.In addition, for ease of description, the equipment for receiving wireless power from wireless power transmission apparatus can be referred to as Wireless power receiver, wireless power reception device receive terminal, reception device, receiving side or receive terminal.

Wireless charging device according to embodiment may be configured to insert type (pad type), shelve type, access point (AP) type, small base station type, support rack type, top typed, on-wall type etc., and a transmitter can be received to multiple wireless powers Device transmits electric power.

For example, wireless power transmitter can be positioned and on desk (desk) or desk (table), and can To be developed and be applied to the vehicles, and can use in a vehicle.The wireless power of installation in a vehicle Transmitter can be by simply and steadily fixed and provide in the form of that shelves shelves type by wireless power transmitter.

Terminal according to embodiment can be applied to compact electronic device such as mobile phone, smart phone, notebook meter Calculation machine, laptop computer, digital broadcast terminal, personal digital assistant (PDA), portable media player (PMP), navigation Device, MP3 player, electric toothbrush, electronic tag, lighting device, remote controler and buoy, but not limited to this.The terminal can be with Applied to all mobile devices equipped with wireless power reception device according to embodiment, and therefore can carry out wireless Charging, term " terminal " or term " device " may be used as identical meaning.It is received according to the wireless power of another embodiment Device can be assemblied in the vehicles, unmanned vehicle, aerial unmanned plane etc..

Wireless power receiver according to embodiment can include at least one wireless power transmission method, and can be with Wireless power is received simultaneously from two or more wireless power transmitters.Herein, wireless power transmission method can include electricity At least one of magnetic strength induction method, EMR electromagnetic resonance method and radio frequency (RF) wireless power transmission method.Particularly, for supporting The wireless power reception device of electromagnetic induction method can be included based on the AirFuel connection as wireless charging technical standard tissue The wireless charging technology of electromagnetic induction method defined in alliance (electric utility alliance (PMA)) and wireless charging alliance (WPC).This Outside, for supporting the wireless power reception device of EMR electromagnetic resonance method that can include being based on as wireless charging technical standard tissue AirFuel alliances (wireless power alliance (A4WP)) and wireless charging alliance (WPC) defined in EMR electromagnetic resonance method nothing Micro USB power technology.

In general, in-band communications can be passed through by forming the wireless power transmitter of wireless power system and wireless power receiver Or Bluetooth Low Energy (BLE) communication controls signal or information to exchange.Herein, in-band communications or BLE communications may be performed that Pulsewidth modulation (PWM) method, frequency modulating method, phase modulating method, amplitude modulation approach, amplitude and phase modulating method Deng.For example, wireless power receiver can perform on/off switch next life with AD HOC to the electric current sensed by receiving coil Into feedback signal, various control signals and information are thus emitted to wireless power transmitter.It is transmitted by wireless power receiver Information can include each bar state information, each bar state information include receive power strength information.In this case, wirelessly Power transmitter can calculate charge efficiency or power transmission efficiency based on power strength information is received.

Fig. 1 is the block diagram for describing wireless charging system according to a kind of embodiment.

With reference to Fig. 1, wireless charging system can include：Wirelessly the wireless power transmitting terminal 10 of transmission electric power, reception institute The wireless power receiving terminal 20 of the electric power of transmission and the electronic device 30 of the power supply by being received.

For example, wireless power transmitting terminal 10 and wireless power receiving terminal 20 can by using in wireless power transmitter The operating frequency that uses identical frequency band performs the in-band communications for exchanging information.As another example, wireless power is sent out It penetrates end 10 and wireless power receiving terminal 20 can be by using the frequency different from the operating frequency used in wireless power transmitter Bring the out-of-band communication performed for exchanging information.

For example, the information exchanged between wireless power transmitting terminal 10 and wireless power receiving terminal 20 can include control letter Breath and its status information.Herein, it by the description to following embodiments, is connect in wireless power transmitting terminal 10 with wireless power The status information and control information exchanged between receiving end 20 will be apparent.

In-band communications and out-of-band communication can provide two-way communication, but not limited to this.In another embodiment, with interior logical Letter and out-of-band communication can provide one-way communication or half-duplex operation.

For example, one-way communication can be wireless power receiving terminal 20 only transmits the logical of information to wireless power transmitting terminal 10 Letter, but not limited to this.In other embodiments, one-way communication can be wireless power transmitting terminal 10 to wireless power receiving terminal The communication of 20 transmission information.

Half-duplex operation has can following feature：Between wireless power receiving terminal 20 and wireless power transmitting terminal 10 into Row two-way communication, but at any time only information can be transmitted there are one device.

Wireless power receiving terminal 20 according to embodiment can obtain the various status informations about electronic device 30.Example Such as, current power usage amount information can be included, about the status information of electronic device 30 for identifying performed application Information, central processing unit (CPU) utilization rate information, battery charge state information, cell output voltage/current information etc., but It is without being limited thereto.In other embodiments, status information can include obtaining from electronic device 30 and available for wireless The information of Electric control.

Particularly, wireless power transmitting terminal 10 according to embodiment can by indicate whether support rapid charge some Grouping is transmitted to wireless power receiving terminal 20.The feelings of rapid charge pattern are supported in the wireless power transmitting terminal 10 for checking access Under condition, which can be notified electron device 30 by wireless power receiving terminal 20.Electronic device 30 can be by wherein being wrapped The display device (for example, liquid crystal display (LCD)) included can carry out rapid charge to show.

In addition, the user of electronic device 30 can select the rapid charge being shown on the desplay apparatus to ask button, and Wireless power transmitting terminal 10 can be controlled to run rapid charge pattern.In this case, when user has selected rapid charge please When seeking button, rapid charge request signal can be transmitted to wireless power receiving terminal 20 by electronic device 30.Wireless power receives End 20 can generate charge mode grouping corresponding with received rapid charge request signal, and can be by the charging mould Formula grouping is transmitted to wireless power transmitting terminal 10, and general low power charge pattern thus is changed to rapid charge pattern.

According to embodiment, even if no user's separately being requested or inputting, electronic device 30 still can be according to radio The communication of power transmitter 10 and wireless power receiver 20 and negotiation result are automatically brought into operation and are changed to rapid charge pattern. In addition, even if no user's separately being requested or inputting, electronic device 30 still can be according to wireless power transmitter 10 and wireless The communication of power receiver 20 and negotiation result are automatically brought into operation and are changed to general low power mode.

Fig. 2 is the block diagram for describing the wireless charging system according to another embodiment.

For example, as shown in reference numeral 200a, wireless power receiving terminal 20 can be configured with multiple wireless powers and receive dress It puts, and the multiple wireless power reception device can be connected to a wireless power transmitting terminal 10 to perform wireless charging. In this case, wireless power transmitting terminal 10 by electric power distribution and can be emitted to multiple wireless powers receptions by time division way Device, but not limited to this.As another example, wireless power transmitting terminal 10 can be connect by using each wireless power is distributed to The different frequencies of receiving apparatus are brought electric power distribution and are transmitted to multiple wireless power reception devices.

In this case, the number that can be connected to the wireless power reception device of a wireless power transmission apparatus can be with It is adaptively determined based at least one of following：Institute's electricity demand, the battery charging shape of each wireless power reception device The available power of state, the power consumption of electronic device and wireless power transmission apparatus.

As another example, as shown in 200b, wireless power transmitting terminal 10 can be configured with multiple wireless power transmitting dresses It puts.In this case, wireless power receiving terminal 20 can be connected to multiple wireless power transmission apparatus simultaneously, and can be from institute Multiple wireless power transmission apparatus of connection receive electric power to perform charging simultaneously.In this case, wireless power is connected to connect The number of the wireless power transmission apparatus of receiving end 20 can be adaptively determined based at least one of following：Wireless power Institute's electricity demand of receiving terminal 20, battery charging state, the power consumption of electronic device and wireless power transmission apparatus can electricity consumption Amount.

Fig. 3 is the figure for describing the sensing signal transmission process in wireless charging system according to a kind of embodiment.

For example, wireless power transmitter can be equipped with, there are three transmitting coils 111 to 113.The part of each transmitting coil Region can be overlapped with another transmitting coil, and wireless power transmitter can sequentially emit sense by each transmitting coil Signal 117 and 127 (for example, digital ping signa) is surveyed, with according to the presence of predetermined order sensing wireless power receiver.

As shown in figure 3, wireless power transmitter can be by being transmitted across by the primary sensing signal that reference numeral 110 indicates Journey sequentially emits sensing signal 117, and can identify from wireless power receiver 115 and have received signal strength indicator The transmitting coil 111 and 112 of 126 (or signal strength groupings).Then, wireless power transmitter can be by by reference numeral The secondary sensing signal transmission processes of 120 instructions sequentially emit sensing signal 127, from having received signal strength indicator Identification has good power transmission efficiency (or charge efficiency) (that is, transmitting coil and reception in 126 transmitting coil 111 and 112 Alignment between coil) transmitting coil, and perform control to and electric power transmitted by the transmitting coil that is identified, that is, hold Row wireless charging.

As shown in figure 3, it is in order to more accurately that wireless power transmitter performs the reason of sensing signal transmission process twice Identification and the transmitting coil of the receiving coil good alignment of wireless power receiver.

For example, as shown in the reference numeral 110 and 120 of Fig. 3, when signal strength indicator 116 and 126 is by the first emission lines When 111 and second transmitting coil 112 of circle receives, wireless power transmitter can be based on by the first transmitting coil 111 and the second hair Each received signal strength indicator 126 in ray circle 112 selects the transmitting coil of good alignment, and can lead to It crosses and performs wireless charging using selected transmitting coil.

Fig. 4 is the state transition graph for describing the wireless power transmission process defined in WPC standards.

With reference to Fig. 4, the power transmission from the transmitter based on WPC standards to receiver can be divided into the choice phase 410th, stage 420, identification and configuration phase 430 and power transmission stage 440 are checked.

Choice phase 410 can be that particular error or the situation of particular event are sensed when power transmission starts or keeps The stage of lower switching.Herein, particular error and particular event will be illustrated by being described below.In addition, in the choice phase 410 In, whether transmitter can be monitored has object on interface surface.For example, when sensing when there is object on interface surface, hair Emitter can be switched to the examination stage 420 (S401).In the choice phase 410, transmitter, which can transmit, has very short arteries and veins The simulation ping signal of punching, and can be in the effective coverage of interface surface to sense based on the curent change of transmitting coil It is no to have object.

When sensing object in the choice phase 410, transmitter can transmit should for activation receiver and identification Receiver whether be the receiver compatible with WPC standards numeral examination.When transmitter in the stage 420 is checked not from reception When device receives response signal (for example, signal strength indicator) to numeral examination, transmitter can again switch to selection Stage 410 (S402).In addition, when transmitter receives the letter for indicating that power transmission terminates in the examination stage 420 from receiver When number (for example, charging completion signal), transmitter can be switched to the choice phase 410 (S403).

At the end of the stage 420 is checked, transmitter can be switched to collect receiver mark and receiver configuration Identification and configuration phase 430 (S404) with status information.

Identify and configuration phase 430 in, when receive it is undesirable grouping, be not received by expectation in the given time Grouping (time-out), there are packet transport error or when there is no power transmission contract (contract), transmitter can switch To choice phase 410 (S405).

At the end of the identification and configuration of receiver, transmitter can be switched to the power transmission for being used for transmission wireless power Stage 440 (S406).

In the power transmission stage 440, when receive it is undesirable grouping, desired point is not received by the predetermined time At the end of group (time-out), the scheduled power transmission contract of generation are violated or charged, transmitter can be switched to the choice phase 410 (S407)。

In addition, in the power transmission stage 440, when the change according to transmitter state needs to reconfigure power transmission During contract, transmitter can be switched to identification and configuration phase 430 (S408).

Can power transmission contract be set based on the state about transmitter and receiver and characteristic information.For example, hair Emitter status information can include emitting about maximum the maximum number of information of electricity and available receiver, and receiver Status information can include the information about required electric power.

Fig. 5 is the state transition graph for describing the wireless power transmission process defined in PMA standards.

With reference to Fig. 5, the power transmission from the transmitter based on PMA standards to receiver can be divided into the stage of awaiting orders 510th, numeral examination stage 520, cognitive phase 530, power transmission stage 540 and charging ending phase 550.

Await orders the stage 510 can be perform for power transmission receiver identification process or keep power transmission it is same When sense particular error or particular event in the case of stage for switching.Herein, particular error and particular event will by with It is lower to describe to illustrate.In addition, in the stage of awaiting orders 510, whether transmitter can be monitored has object on charging surface.For example, There is object on charging surface or when performing when restarting of RXID, transmitter can be switched to the numeral examination stage when sensing 520(S501).Herein, RXID can be allocated to the unique identifier (ID) of the receiver of compatible PMA.In the stage of awaiting orders In 510, transmitter can send the simulation ping signal with very short pulse, and can the electric current based on transmitting coil Whether variation has object to sense in the effective coverage of interface surface (for example, effective coverage of charging base).

Be switched to the transmitter in numeral examination stage 520 and can send for identify sensed object whether be can be simultaneous Hold the digital ping signa of the receiver of PMA.When the digital ping signa that basis is transmitted from transmitter provides foot to receiver During enough electric power, receiver can be modulated received digital ping signa according to PMA communication protocols to respond Signal is sent to transmitter.Herein, the signal strength of power strength that response signal can include indicating to be received by receiver refers to Show symbol.When receiving effective response signal in the numeral examination stage 520, transmitter can be switched to cognitive phase 530 (S502)。

For example, it is not compatible when being not received by response signal in the numeral examination stage 520 or checking object During receiver (that is, external analyte detection (FOD)) of PMA, transmitter can be switched to the stage of awaiting orders 510 (S503).It is for example, external Object (FO) can be the metal object for including coin, key etc..

When the receiver identifying processing failure in cognitive phase 530 or should be performed continuously and at receiver identification When reason was terminated up to the predetermined time, transmitter can be switched to the stage of awaiting orders 510 (S504).

When receiver identifies successfully, transmitter can be switched to the power transmission stage 540 from cognitive phase 530 and can To start to charge up (S505).

When be not received by desired signal (time-out) in the given time in the power transmission stage 540, sense FO or When the voltage of person's transmitting coil is more than predetermined reference value, transmitter can be switched to the stage of awaiting orders 510 (S506).

In addition, when the temperature sensed in the power transmission stage 540 by the temperature sensor included in the transmitter is big When reference value, transmitter can be switched to charging ending phase 550 (S507).

When checking receiver in the ending phase 550 that charges and being removed from charging surface, transmitter can be switched to and treat The life stage 510 (S509).

In addition, under over-temperature conditions, when the temperature measured after a time has passed be reduced to reference value or it is lower when, Transmitter can be switched to the numeral examination stage 520 (S510) from charging ending phase 550.

In numeral examination stage 520 or power transmission stage 540, when from receiver receive charging terminate (EOC) please When asking, transmitter can be switched to charging ending phase 550 (S508 and S511).

Fig. 6 is the block diagram for describing the structure of wireless power transmitter 600 according to a kind of embodiment.

With reference to Fig. 6, wireless power transmitter 600 can include power conversion unit 610, power transmission unit 620, communication Unit 630, control unit 640 and sensing unit 650.Each element of wireless power transmitter 600 is not required element, because This, wireless power transmitter 600 can include elements more fewer or more than the number of shown element.

As shown in fig. 6, when powering from power supply unit 660, power conversion unit 610 can be performed electrical power conversion into tool There is the function of the electric power of some strength.

For this purpose, power conversion unit 610 can include DC/DC converters 611 and amplifier 612.

DC/DC converters 611 can be performed will supply according to the control signal of control unit 640 from power supply unit 660 Direct current (DC) electrical power conversion is into having the function of the DC electric power of certain strength.

At this point, sensing unit 650 can measure the voltage/current of DC power conversions, and can by measured voltage/ Electric current is supplied to control unit 640.In addition, sensing unit 650 can measure the internal temperature of wireless power transmitter 600 with true It is fixed excess temperature whether to occur, and measurement result be supplied to control unit 640.For example, control unit 640 can be based on by The voltage/current value that sensing unit 650 measures adaptively is cut off the electric power supplied from power supply unit 650 or can be cut The disconnected electric power supplied to amplifier 612.It is used for for this purpose, can further be set on the side of power conversion unit 610 Cut off electric power supply from power supply unit 650 or cut-out be supplied to amplifier 612 electric power power cut circuit.

Amplifier 612 can be according to the intensity of the control signal adjustment DC/DC power conversions of control unit 640.For example, control Unit 640 processed can receive the power controlling signal of wireless power receiver or/and power receiver state by communication unit 630 Information, and can amplification dynamically be controlled based on received power receiver status information or/and power controlling signal The magnifying power of device 612.For example, power receiver status information can include about rectifier output voltage strength information and about The strength information of the electric current of receiving coil is applied to, but not limited to this.Power controlling signal can include sending out increase electricity The signal of the request of power and the signal for sending out the request for reducing electric power.

Power transmission unit 620 can include multiplexer 621 and transmitting coil 622.In addition, power transmission unit 620 is also It can include the carrier generator (not shown) for generating the special operating frequency for power transmission.

Carrier generator can generate specific frequency, which is used for the amplifier transmitted by multiplexer 621 612 output DC electric power is converted into exchange (AC) electric power with the specific frequency.Hereinbefore, it has been described that will be by carrier wave The AC signals of generator generation are mixed with the output terminal of multiplexer 621 to generate AC electric power, but this is only a kind of embodiment. In other embodiments, AC signals can be mixed with the front end of amplifier 612 or rear end.

According to embodiment, the frequency for being sent to the AC electric power of transmitting coil can be different, and in other embodiment In, it can differently be set by using the frequency controller for the LC resonance characteristic for having the function of differently to adjust transmitting coil Put the resonant frequency of transmitting coil.

However, in the case of the resonant frequency difference generated from multiple transmitting coils, need to control resonant frequency Individual frequency controller, and the size of wireless power transmitter may increase.Therefore, in one embodiment, to the greatest extent Pipe wireless power transmitter includes multiple transmitting coils, but can also transmit electric power by using identical resonant frequency.

As shown in fig. 6, power transmission unit 620 can include being used to the output power for controlling amplifier 612 being transmitted to The multiplexer 621 and multiple transmitting coils 622 (that is, first transmitting coil to the n-th transmitting coil) of transmitting coil.

In the case where being connected with multiple wireless power receivers, control unit 640 according to embodiment can pass through The time division multiplexing of each transmitting coil transmits electric power.For example, pass through three different transmittings in wireless power transmitter 600 Coil (that is, the first transmitting coil to third transmitting coil) identifies three wireless power receivers (that is, the first wireless power connects Device is received to third wireless power receiver) in the case of, control unit 640 can control multiplexer 621 to perform control, to pass through Specific transmitting coil is by power transmission to particular time-slot.In such a case it is possible to based on distribute to each transmitting coil when The length of gap is sent to the electricity of corresponding wireless power receiver to control, but this is only a kind of embodiment.At other In embodiment, it can be directed to often by the magnifying power for the sequence control amplifier 612 for distributing to each transmitting coil to control The transmission electric power of a wireless power receiver.

Control unit 640 can control multiplexer 621 in primary sensing signal transmission process by the first emission lines Circle senses signal to be sequentially transmitted to the n-th transmitting coil 622.At this point, by using timer 655, control unit 640 can identify the sensing signal time to be transmitted, and when reaching sensing signal transmission time, control unit 640 can Sensing signal is transmitted by corresponding transmitting coil to control multiplexer 621.For example, timer 655 can be transmitted in examination Particular event signal is transmitted to control unit 640 in special time period in stage, and when sensing event signal, control Unit 640 can control multiplexer 621 to transmit numeral examination by corresponding transmitting coil.

In addition, in primary sensing signal transmission process, control unit 640 can receive transmitting coil ID and by right The signal strength indicator that the transmitting coil answered receives, transmitting coil ID are used to be identified by which transmitting coil from demodulation Device 632 receives signal strength indicator.Then, in secondary sensing signal transmission process, control unit 640 can control multiple With device 621, only to be felt by receiving the transmitting coil of signal strength indicator in primary sensing signal transmission process Survey the signal to be transmitted.As another example, it has been received in primary sensing signal transmission process in multiple transmitting coils In the case of signal strength indicator, control unit 640 can will have been received by the signal strength indicator with maximum value Transmitting coil be determined as in secondary sensing signal transmission process transmitting the transmitting coil of sensing signal by it first, and And can also multiplexer 621 be controlled according to determining result.

Modulator 631 can modulate the control signal generated by control unit 640, and can believe modulated control Number it is transmitted to multiplexer 621.Herein, the example of modulator approach being modulated to control signal can include frequency shift keying (FSK) modulator approach, Manchester's code modulator approach, phase-shift keying (PSK) (PSK) modulator approach, pulse duration modulation method and difference are double Phase modulator approach, but not limited to this.

When sensing through transmitting coil received signal, demodulator 632 can be demodulated the signal sensed It and can be by demodulated signal transmission to control unit 640.Herein, demodulated signal can include signal strength instruction Symbol, error correction (EC) indicator, EOC indicators and overvoltage/mistake for controlling electric power during wireless power is emitted Electric current/excess temperature indicator, but not limited to this.In other embodiments, demodulated signal can include wireless for identifying Each bar state information of the state of power receiver.

In addition, which transmitting coil demodulator 632, which can be identified from, receives demodulated signal, and can will be with recognizing The corresponding transmitting coil ID of transmitting coil be supplied to control unit 640.

For example, wireless power transmitter 600 can be passed through based on the frequency identical with used in wireless power transmission In-band communications obtain signal strength indicator, to perform the communication with wireless power receiver.

In addition, except through transmitting coil 622 is used to emit except wireless power, wireless power transmitter 600 can be with Each information is exchanged with wireless power receiver by transmitting coil 622.As another example, wireless power transmitter 600 is gone back It can include individual coil corresponding with each transmitting coil 622 (that is, first transmitting coil to the n-th transmitting coil), and It can come to perform in-band communications with wireless power receiver by using independent coil.

Hereinbefore, it describes wireless power transmitter 600 with reference to Fig. 6 and performs in-band communications with wireless power receiver Example, but this is only a kind of embodiment.In other embodiments, can by with for emitting wireless power signal The different frequency band of frequency band perform near distance bidirectional communication.For example, near distance bidirectional communication can be low-power Bluetooth communication, One kind in RFID communication and ultra wide band UWB communications and Zigbee communication.

Particularly, wireless power transmitter 600 according to embodiment can according to the request of wireless power receiver from Rapid charge pattern and general low power charge pattern are adaptively provided.

In the case where that can support rapid charge pattern, wireless power transmitter 600 can be transmitted with AD HOC Signal (for ease of description, the hereinafter referred to as first grouping).When receiving the first grouping, wireless power receiver can Rapid charge can be carried out with the wireless power transmitter 600 for identifying access wireless power receiver.

Particularly, when needing rapid charge, wireless power receiver can be transmitted to wireless power transmitter 600 and be asked First respond packet of rapid charge.

Particularly, when have passed through certain time after receiving the first respond packet, wireless power transmitter 600 can To be automatically changed to rapid charge pattern and rapid charge can be started.In addition, when after the first respond packet is received Wireless charging it is in stable condition when, wireless power transmitter 600 can be automatically changed to rapid charge pattern and can start Rapid charge.In addition, when receiving control erroneous packet after receiving the first respond packet, wireless power transmitter 600 can be automatically changed to rapid charge pattern and can start rapid charge.

For example, when the control unit 640 of wireless power transmitter 600 is switched to the power transmission stage 440 of Fig. 4 to Fig. 5 Or when 540, control unit 640 can perform control, and to be grouped by the transmission of transmitting coil 622 first, but this is only one kind Embodiment.In another embodiment of the present invention, can Fig. 4 identification and configuration phase 430 or Fig. 5 identification and The first grouping of transmission in configuration phase 530.

In another embodiment, for identifying whether to support the information of rapid charge can be encoded by radio In the digital ping signa that power transmitter 600 transmits and it can be transmitted.

When wireless power receiver needs rapid charge at any time, wireless power receiver will can wherein charge The charge mode grouping that pattern is arranged to rapid charge is sent to wireless power transmitter 600.For example, when charge mode changes During into rapid charge pattern, wireless power transmitter 600 and wireless power receiver can control internal operation to emit and connect Receive electric power corresponding with rapid charge pattern.For example, when charge mode is changed to rapid charge from general low power charge pattern During pattern, thus it is possible to vary and setting overvoltage determines that criterion, excess temperature determine that criterion, low-voltage/high voltage determine criterion, best electricity Voltage levels and Electric control deviant.In addition, when charge mode is changed to rapid charge pattern from general low power charge pattern When, wireless power transmitter 600 can based on the control erroneous packet received from wireless power receiver according to Electric control come Change and wireless charging method is set.Herein, by will be apparent from the detailed of charge mode grouping to the description of Figure 13 to Figure 20 Thin configuration.

For example, when charge mode is changed to rapid charge pattern from general low power charge pattern, for determining electricity The threshold voltage of pressure can be set to realize the high voltage of rapid charge.As another example, it is contemplated that by filling at a high speed Temperature caused by electricity increases, and is used to determine whether that the threshold voltage for excess temperature occur can be set to high voltage.Show as another Example represents that the Electric control deviant for being capable of the minimum level of the electric power of control transmitter can be set to be more than general low electricity The value of power charge mode, it is horizontal so as to rapidly converge to desired target power under rapid charge pattern.

Fig. 7 is for describing the frame of the structure of wireless power receiver 700 to cooperate with the wireless power transmitter of Fig. 6 Figure.

With reference to Fig. 7, wireless power receiver 700 can include receiving coil 710, rectifier 720, DC/DC converters 730th, load 740, sensing unit 750, communication unit 760 and main control unit 770.Herein, communication unit 760 can include solution Adjust at least one of device 761 and modulator 762.

In the embodiment of Fig. 7, wireless power receiver 700 is shown as emitting by in-band communications and wireless power Device 600 exchanges information, but this is only a kind of embodiment.In other embodiments, communication unit 760 can by with Near distance bidirectional communication is provided in the different frequency band of the frequency band of transmitting wireless power signal.

The AC electric power received by receiving coil 710 can be passed to rectifier 720.Rectifier 720 can be by AC electricity Power is converted into DC electric power, and DC electric power can be transmitted to DC/DC converters 730.DC/DC converters 730 can be by rectification Certain strength needed for the intensity-conversion into load 740 of the DC electric power of device output, and the DC electric power that rectifier can be exported It is transferred to load 740.In addition, receiving coil 710 can include multiple receiving coil (not shown) (that is, the first receiving coil is extremely N-th receiving coil).The frequency for being transmitted to the AC electric power of transmitting coil (not shown) according to embodiment can be different, and It in other embodiments, can be by using the frequency control for the LC resonance characteristic for having the function of differently to adjust transmitting coil Device processed is arranged differently than the resonant frequency of transmitting coil.

Sensing unit 750 can measure the intensity of the DC electric power of output and can the result of measurement be supplied to main control Unit 770.In addition, sensing unit 750 can be applied to the electricity of receiving coil 710 according to the wireless power being just received to measure The intensity of stream, and main control unit 770 can be transmitted measurement result to.In addition, sensing unit 750 can measure radio The internal temperature of power receiver 700, and measured temperature value can be supplied to main control unit 770.

For example, the intensity that the rectifier of measurement can be exported DC electric power by main control unit 770 is compared with reference value To determine whether overvoltage occurs.When determining to occur overvoltage, main control unit 770 can generate to notify to have occurred The specific cluster of voltage, and the specific cluster can be transmitted to modulator 762.Herein, can by receiving coil 710 or The signal modulated by modulator 762 is sent to wireless power transmitter by individual coil (not shown).In addition, when rectifier is defeated When going out the intensity of DC electric power equal to or more than reference value, main control unit 770 can determine to receive sensing signal, and work as and connect When receiving sensing signal, main control unit 770 can perform control to by modulator 762 will signal corresponding with sensing signal it is strong Degree indicator is sent to wireless power transmitter.As another example, demodulator 761 can solve output DC electric power signal It adjusts to identify whether to receive sensing signal, and recognition result can be supplied to main control unit 770.At this point, main control Unit 770, which can be performed control to, is sent to signal strength indicator corresponding with sensing signal wirelessly by modulator 762 Power transmitter.

In addition, main control unit 770 can be based on the information demodulated by demodulator 761 come determining accessed wireless power Whether transmitter is the wireless power transmitter for being capable of rapid charge.

In addition, when receiving the rapid charge request signal for asking rapid charge from the electronic device 30 of Fig. 1, it is main Control unit 770 can generate the grouping of corresponding with the rapid charge request signal received charge mode, and can should Charge mode grouping is transmitted to modulator 762.Herein, it can select to receive according to the custom menu performed in user interface Rapid charge request signal from electronic device.

In addition, when checking accessed wireless power transmitter support rapid charge pattern, main control unit 770 can To ask to carry out rapid charge or can perform control to is based on wireless power transmitter from wireless power transmitter automatically The remaining capacity of battery stops rapid charge and is changed to general low battery charge mode.

In addition, main control unit 770 monitors electricity in real time while can performing charging under general low power charge pattern The consumption electric power of sub-device.For example, when the consumption electric power of electronic device is equal to or more than reference value, main control unit 770 can It is grouped, and this can be filled with generating for sending out the charge mode for the request that charge mode is changed to rapid charge pattern Power mode grouping is sent to modulator 761.

In addition, main control unit 770 can will be compared by the internal temperature values that sensing unit 750 measures and reference value To determine whether excess temperature.For example, when occurring excess temperature during being carrying out rapid charge, main control unit 770 can To generate and transmit charge mode grouping, so that wireless power transmitter is changed to general low power charge pattern.

In addition, main control unit 770 can based on battery charging rate, internal temperature, rectifier output voltage intensity, The CPU being equipped in electronic device utilization rate and custom menu selection at least one of come determine the need for change charging mould Formula, and when needing to change charge mode as a definitive result, main control unit 770, which can generate, has what is be changed to The charge mode grouping of charge mode value, and the charge mode can be grouped and be sent to wireless power transmitter.

Fig. 8 is for describing the figure of method for being modulated and demodulating to wireless power signal according to a kind of embodiment.

As shown in the reference numeral 810 of Fig. 8, wireless power transmitting terminal 10 and wireless power receiving terminal 20 can be based on having The internal clock signal of same period is grouped transmission objectives and carries out encoding or decoding.

Hereinafter, the method that will be encoded referring to figs. 1 to Fig. 8 detailed descriptions to transmission objectives grouping.

With reference to Fig. 1, when wireless power transmitting terminal 10 or wireless power receiving terminal 20 do not transmit specific cluster, wireless power Signal can be the unmodulated AC signals with specific frequency as shown in the reference numeral 41 of Fig. 1.On the other hand, work as radio When power transmitting terminal 10 or wireless power receiving terminal 20 transmit specific cluster, wireless power signal can be the reference numeral such as Fig. 1 The AC signals modulated by specific modulation method shown in 42.For example, modulator approach can include amplitude modulation approach, frequency and Amplitude modulation approach, phase modulating method etc., but not limited to this.

As the differentially bi phase coding in reference numeral 820 can be applied to be connect by wireless power transmitting terminal 10 or wireless power The binary data for the grouping that receiving end 20 generates.In detail, differentially bi phase coding can allow for compiling data bit " 1 " Code and perform two next states conversion, and can allow for encoding data bit " 0 " and perform a next state conversion. That is data bit " 1 " can be by the HI states and LO states in order to be performed in the rising edge of clock signal and failing edge Between conversion and the coding performed and the position obtained, and data bit " 0 " can be by order in the rising edge of clock signal Conversion between the HI states and LO states that are performed failing edge and the coding performed and the position obtained.

As shown in reference numeral 830, byte code technology can be applied to encoded binary data.With reference to attached drawing Label 830, byte code technology according to embodiment can will be used to identify that the type of corresponding bit stream and opening for beginning Beginning position and stop position and for sense corresponding bit stream (byte) whether occur mistake parity check bit be inserted into it is encoded 8 binary bit streams in method.

Fig. 9 is the figure for describing the packet format based on wireless power transmission process according to a kind of embodiment.

With reference to Fig. 9, for the grouping lattice of the information exchange between wireless power transmitting terminal 10 and wireless power receiving terminal 20 Formula 900 can include：910 field of lead code is used to obtain to synchronize and be divided with being demodulated to corresponding grouping and identifying to correspond to The accurate start bit of group；920 field of header is used to identify the type of message that corresponding grouping includes；930 word of message Section is used for transmission the content (or payload) of corresponding grouping；And verification and 940 fields, it is used to identify at corresponding point Whether mistake occurs in group.

As shown in figure 9, grouping receiving terminal can identify the message 930 that corresponding grouping includes based on the value of header 920 Size.

Furthermore, it is possible to limit header 920, and some headers 920 for each stage of wireless power transmission process Value can be identical value in different phases, but another type of message can be defined as.For example, referring to figure 9, header value corresponding with checking the end power transmission of end power transmission and power transmission stage in stage can be 0x02, It and can be identical.

Message 930 can include the data transmitted for corresponding grouping by transmitting terminal.For example, 930 field of message includes Data can be for it is third-party report, request or response, but not limited to this.

It can also be included identifying the transmitting terminal for having transmitted corresponding grouping according to the grouping 900 of another embodiment Transmitting terminal identification information and receiving terminal identification information for identifying the receiving terminal that be received by it corresponding grouping.Herein, Transmitting terminal identification information can include Internet protocol (IP) address information, media access control (MAC) address information, product mark Know information etc., but not limited to this.In other embodiments, transmitting terminal identification information can be for determining wireless charging system In receiving terminal and transmitting terminal information.

When corresponding grouping should be received by multiple devices, can also include using according to the grouping 900 of another embodiment In the group identification information of the corresponding reception group of mark.

Figure 10 is for describing can be connect based on wireless power transmission process by wireless power according to a kind of embodiment The figure of a kind of grouping that receiving apparatus transmits in the examination stage.

As shown in Figure 10, in the examination stage, wireless power reception device with transmission signal strength can be grouped or terminate electricity Power transmission packe.

With reference to the reference numeral 1001 of Figure 10, the message format of signal strength grouping according to embodiment can be by having The signal strength values composition of 1 byte-sized.Signal strength values can represent the degree of coupling between transmitting coil and receiving coil, And can be based in the numeral examination stage rectifier output voltage, from output cut-out switch measure open-circuit voltage and The value that the power strength received calculates.Signal strength values can have the range from minimum " 0 " to peak " 255 ", and And actual measured value U when particular variables it is identical with the maximum value Umax to dependent variable when, signal strength values can be value “255”。

For example, signal strength values can be calculated as U/Umax*256.

With reference to the reference numeral 1002 of Figure 10, the message format that ends power transmission according to embodiment is grouped can be by There are one the end power transmission code compositions of byte-sized for tool.

The reason of request of wireless power reception device stops the power transmission from wireless power transmitter can include filling Electric completions internal fault, excess temperature, overvoltage, overcurrent, battery failures, reconfigures, without responding and noise current, but unlimited In this.It can additionally be limited based on new power transmission stop reason.

Charging complete can be used when the charging complete of battery.Software mistake is sensed in being operated in the inside of receiver Internal fault can be used when mistake or logic error.

Excess temperature/overvoltage/overcurrent can be used when temperature/voltage/current value of measurement is more than the threshold value of its restriction.

When battery failures can be used in battery when something goes wrong.

When needing to renegotiate power transmission condition can use reconfigure.

When transmitter is confirmed as not just the response for controlling erroneous packet (it represents increasing or reducing for power strength) No response can be used when often.

Noise currents different from overcurrent, being measured caused by noise occurs when switching is performed in inverter Noise current can be used when value is more than the threshold value limited.

Figure 11 is the message for describing the mark grouping based on wireless power transmission process according to a kind of embodiment The figure of form.

With reference to Figure 11, identifying the message format of grouping can refer to including version information field, manufacturer's information field, extension Show symbol field and basic device identification information field.

Version information word can be recorded in by being applied to the standard revision version information of corresponding wireless power reception device Duan Zhong.

Manufacture can be recorded in for identifying the identification code of manufacturer for having manufactured corresponding wireless power reception device In quotient's information field.

Extension indicator field can be for recognizing whether to include the extension of expanding unit identification information mark point The indicator of group.For example, when the value for extending indicator is 0, extension indicator field can represent that there is no extension marks point Group, and when the value for extending indicator is 1, extension indicator field can represent there is extension mark point after mark grouping Group.

With reference to reference numeral 1101 and 1102, when the value for extending indicator is 0, the dress of corresponding wireless power receiver Putting ID can be configured by the combination of manufacturer's information and basic device identification information.On the other hand, when the value of extension indicator When being 1, the device ID of corresponding wireless power receiver can be by manufacturer's information, basic device identification information and expanding unit The combination of identification information is configured.

Figure 12 is to postpone dividing for the Electric control based on wireless power transmission process described according to a kind of embodiment The figure of the message format of group and configuration packet.

As shown in the reference numeral 1201 of Figure 12, the message format of configuration packet can have the length for corresponding to 5 bytes Degree, and can include power levels field, maximum power field, Electric control field, count area, window size field and Window offset field.

Distributing to the power levels of corresponding wireless power receiver can be recorded in power levels field.

The intensity value of maximum power that can be provided by the rectifier output end of wireless power receiver can be recorded in In maximum power field.

For example, when power levels are a and maximum power is b, can be exported by the rectifier of wireless power receiver The maximum power Pmax that end provides can be calculated as (b/2) * 10a.

Electric control field can serve to indicate that the algorithm that the Electric control in wireless power transmitter is performed by it.Example Such as, when the value of Electric control field is 0, Electric control field can be represented using the Electric control algorithm defined in standard, And when the value of Electric control field is 1, Electric control field can represent the algorithm defined by manufacturer to perform electric power control System.

Count area can be used in the option identified with record will be transmitted by wireless power reception device in configuration phase The number of configuration packet.

Window size field can be used for recording the window size for calculating average received electric power.For example, window size It may be greater than 0 and the positive integer value as unit of 4ms.

Window offset field can record to identify from the time that average received power system calculation window terminates to next Receive the information of time the time it takes that the transmission of electric power grouping starts.For example, window offset may be greater than 0 and with 4ms is the positive integer value of unit.

With reference to reference numeral 1202, the message format that Electric control postpones grouping can include Electric control retardation time T_ delay.Grouping is postponed identifying and multiple Electric controls can be transmitted in configuration phase.For example, Electric control postponement grouping can To be transmitted for up to seven.Electric control retardation time T_delay can have postpones minimum in predefined Electric control Time T_min " 5ms " and predefined Electric control postpone the value between maximum time T_max (205ms).Wireless power emits Device can be by using when identifying that the Electric control that grouping is postponed with the Electric control finally received in configuration phase is postponed Between perform Electric control.In addition, when identifying with Electric control postponement grouping is not received by configuration phase, radio Power emitter can use T_min values as T_delay values.

Electric control retardation time can represent performing practical electric power after newest control erroneous packet is received Wireless power transmission apparatus was awaited orders without the time for performing Electric control before control.

Figure 13 is for describing filling for asking to change based on wireless power transmission process according to a kind of embodiment The figure of the structure of the charge mode grouping of power mode.

With reference to Figure 13, the header value of charge mode grouping can use the packet header defined in current wireless charging electric standard One of value and undefined header value.For example, as shown in figure 9, the header value of charge mode grouping can be defined as 0x18.So And this be for ease of description, and the header value be not necessarily it is desired.

Message size corresponding with header value " 0x18 " can be a byte.

Information about the charge mode to be changed to can be recorded in the message field of charge mode grouping.Example Such as, it with reference to reference numeral 1350, needs to be changed to rapid charge while charging is performed under general low power charge pattern During pattern, 0xff can be recorded in the message field of charge mode grouping by wireless power receiver, and can transmit this Message field.On the other hand, it needs to be changed to general low power charge mould while charging is performed under rapid charge pattern During formula, wireless power receiver can be in the message field that 0x00 is recorded in charge mode grouping, and can transmit this Message field.The example shown in reference numeral 1350 is only used for helping to understand the present invention, and message value is not limited in this.

Figure 14 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 14, the message field of charge mode grouping can include charge mode 1431 and required electric power 1432. Herein, required electric power can be the intensity value of required initial electrical when being changed to corresponding charge mode.

The size of the message of charge mode grouping can be a byte.Some positions in one byte can be used for filling Power mode 1431, and other positions can be used for required electric power 1432.It is, for example, possible to use b7 to b4 transmits charge mode 1431, and required electric power 1432 can be transmitted using b3 to b0.In this case, in the range of message value, 0x00 is extremely 0x0f may be used as being changed to the first charge mode (that is, being changed to general low power charge from rapid charge pattern for sending out Pattern) request value, and 0x10 to 0x1f may be used as being changed to the second charge mode (that is, from general low for sending out Power charge pattern is changed to rapid charge pattern) request value.Such example is only an example, and message field Configuration and definition can various changes be carried out according to the realization method of those skilled in the art.

Figure 15 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 15, the message field of charge mode grouping can include charge mode 1531 and charge mode change is treated Order the time 1532.Herein, charge mode, which changes the waiting time 1532, can represent to be grouped it receiving corresponding charge mode Wireless power transmitter is awaited orders time until charge mode changes afterwards.For example, when charge mode changes the waiting time When 1532 value is 0, this can represent that charge mode changes.That is, as charge mode changes the waiting time 1532 Increase, this can represent that the time it takes increases until charge mode changes.According to the wireless charging of another embodiment Electric system can be changed by using charge mode the waiting time 1532 by wireless power transmitter and wireless power receiver it Between charge mode change the time synchronize.

For example, as shown in reference numeral 1550, the b7 of the most significant bit (MSB) as message field can be for knowing The position for the charge mode not to be changed to.Other b6 to b0 can be used for charge mode is set to change the waiting time 1532. In this case, in the range of message value, 0x00 to 0x7f may be used as send out be changed to the first charge mode (that is, from Rapid charge pattern is changed to general low power charge pattern) request value, and 0x80 to 0xff may be used as sending out Go out to be changed to the value of the request of the second charge mode (that is, being changed to rapid charge pattern from general low power charge pattern).This The example of sample is only an example, and the configuration and definition of message field can be according to the realization methods of those skilled in the art And carry out various changes.

Figure 16 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 16, the message field of charge mode grouping can include charge mode 1631 and charge mode changes behaviour Working frequency 1632.Herein, charge mode, which changes operating frequency 1632, can be denoted as following operating frequency：Wireless power emits Device is changed to rapid charge pattern according to the correspondence charge mode grouping received, then generates AC signals with specific frequency. It can be preset in addition, charge mode changes operating frequency 1632.That is, under rapid charge pattern, radio Power transmitter can change operating frequency 1632 to generate AC signals based on pre-set charge mode.For example, charge mode It can be the operating frequency being stored in by user in memory (not shown) to change operating frequency 1632.In this case, it charges It can be the operating frequency that AC signals are stably generated as test result that pattern, which changes operating frequency 1632,.In more detail, it fills It can be 120kHz that power mode, which changes operating frequency 1632,.As another example, charge mode change operating frequency 1632 can be with It is the operating frequency that memory (not shown) is stored, being used under rapid charge pattern before wireless charging is again started up should Operating frequency stably generates AC signals and the frequency is stored in (not shown) in memory.

For example, as shown in reference numeral 1650, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b0 can be used for charge mode is set to change operating frequency 1632.In this case, disappearing In the range of breath value, 0x00 to 0x7f may be used as being changed to the first charge mode (that is, from rapid charge pattern changing for sending out Become general low power charge pattern) request value, and 0x80 to 0xff may be used as being changed to second for sending out and filling The value of the request of power mode (that is, being changed to rapid charge pattern from general low power charge pattern).Such example is only one A example, and the configuration and definition of message field can carry out various change according to the realization method of those skilled in the art Become.

Figure 17 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 17, the message field of charge mode grouping can include charge mode 1731 and charge mode changes surely Surely control erroneous packet count value 1732.Herein, stability contorting erroneous packet can be that wherein control error value is 0 and can be with The control erroneous packet (CEP) of state in the transmission electric power for not needing to increase or reduce wireless power transmission apparatus, and It will be described in more detail.It can be when wireless that charge mode, which changes stability contorting erroneous packet count value 1732, It is wrong that power transmitter receives the stability contorting that corresponding charge mode grouping continuously receives certain amount or more number later The count value obtained when being accidentally grouped by changing charge mode.That is, charge mode changes stability contorting erroneous packet Count value 1732 can represent to determine that wireless power transmitter stably generates AC signals.Stablize for example, changing in charge mode In the case that control erroneous packet count value 1732 is 3, stablize control when wireless power transmitter continuously receives three or more During erroneous packet processed, this can represent that charge mode changes.That is, as charge mode changes stability contorting erroneous packet The increase of count value 1732, this can represent continuously receive the stability contorting erroneous packet of greater number to change charging mould Formula.

For example, as shown in reference numeral 1750, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b0 can be used for charge mode is set to change stability contorting erroneous packet count value 1732. In this case, in the range of message value, 0x00 to 0x7f may be used as send out be changed to the first charge mode (that is, Be changed to general low power charge pattern from rapid charge pattern) request value, and 0x80 may be used as being used for 0xff Send out the value for the request for being changed to the second charge mode (that is, being changed to rapid charge pattern from general low power charge pattern). Such example is only an example, and the configuration and definition of message field can be according to the realization sides of those skilled in the art Formula and carry out various changes.

Figure 18 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 18, the message field of charge mode grouping can include charge mode 1831 and electric power based on CEP Control dwell time 1832.Herein, it in the case where wireless power transmitter receives corresponding charge mode grouping, is based on The Electric control dwell time 1832 of CEP can represent not performing based on CEP within a certain period of time after rapid charge is started Electric control time.In more detail, when wireless power transmitter receives the corresponding charge mode with certain time During grouping, wireless power transmitter can ignore the CEP received before rapid charge pattern is changed to or be changed to height The CEP received after fast charge mode can be based on receiving after it have passed through the certain time up to certain time CEP control wireless charging electric power.For example, in the case where the value of the Electric control dwell time 1832 based on CEP is 0, Even if when charge mode is changed to rapid charge pattern, wireless power transmitter can also be based on being changed to rapid charge pattern The CEP received before the or CEP received after rapid charge pattern is changed to controls electric power immediately.In addition, with The increase of the Electric control dwell time 1832 based on CEP, this can represent to ignore before rapid charge pattern is changed to The CEP received or the time of the CEP received after rapid charge pattern is changed to increase.

For example, as shown in reference numeral 1850, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b0 can be used for setting the Electric control dwell time 1832 based on CEP.In the situation Under, in the range of message value, 0x00 to 0x7f may be used as being changed to the first charge mode (that is, from filling at a high speed for sending out Power mode is changed to general low power charge pattern) request value, and 0x80 to 0xff may be used as changing for sending out Into the value of the request of the second charge mode (that is, being changed to rapid charge pattern from general low power charge pattern).It is such to show Example is only an example, and the configuration and definition of message field can be carried out according to the realization method of those skilled in the art Various changes.

Therefore, in another embodiment, smaller control error value generation required under rapid charge pattern can be used For control error value required under general low power charge pattern, so as to prevent that overvoltage occurs when performing Electric control.This Outside, in another embodiment, electric power can be steadily controlled in rapid charge.

Figure 19 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 19, the message field of charge mode grouping can include charge mode 1931 and control error weight value 1932.Herein, control error weight value 1932 can represent to receive corresponding charge mode grouping when wireless power transmitter When for control wireless charging electric power be reflected in CEP control error value in particular value.In more detail, wireless power emits Device can receive the corresponding charge mode grouping with particular value, and the control mistake under general low power charge pattern adds Weights can be identical or different from the control error weight value under rapid charge pattern.For example, in general low power charge mould Under formula control error weight value it is identical with the control error weight value under rapid charge pattern in the case of, even if ought charge mould Formula change when, wireless power transmitter can also the control error value based on CEP by wireless charging Electric control in phase same level Or at same phase.Control error weight value under general low power charge pattern and the control mistake under rapid charge pattern In the case of weighted value difference, when charge mode changes, the control error weight value being reflected in the control error value of CEP can There can be difference, therefore, wireless power transmitter can be in general low power charge pattern and rapid charge pattern both moulds Under formula by wireless charging Electric control at phase same level or same phase.In more detail, control error weight value can be big In equal to 0 or and less than or equal to 1 value.For example, when it is 1 to control error weight value, wireless power transmitter can be by making The electric power of wireless charging is controlled as former state with the control error value of received CEP.When control error weight value be more than 0 and During less than 1, the control error value of received CEP can be generated as the control with reduced levels by wireless power transmitter Error value, and can the electric power for wireless charging be controlled by using the control error value of wherein reflection weighted value. In this case, wireless power transmitter can be by wireless charging Electric control less than the desired electric power control of wireless power receiver System level or level or the stage in stage.When it is 0 to control error weight value, wireless power transmitter can will be received All control error values of CEP are determined as 0, therefore, can not increase or reduce wireless charging electricity.That is, in the feelings Under condition, all control erroneous packets can be determined as stability contorting erroneous packet by wireless power transmitter.In addition, control is wrong Accidentally weighted value is not limited to above-mentioned example, and according to circumstances, and control error weight value may be greater than 1 or the value less than 0.

For example, as shown in reference numeral 1950, the b7 of the MSB as message field can will be changed to for identifying Charge mode position.Other b6 to b0 can be used for setting control error weight value 1932.In this case, in message value Range in, 0x00 to 0x7f may be used as being changed to the first charge mode (that is, being changed to from rapid charge pattern for sending out General low power charge pattern) request value, and 0x80 to 0xff may be used as being changed to the second charging mould for sending out The value of the request of formula (that is, being changed to rapid charge pattern from general low power charge pattern).Such example is only one and shows Example, and the configuration and definition of message field can carry out various changes according to the realization method of those skilled in the art.

Figure 20 is the filling for asking to change based on wireless power transmission process for describing according to another embodiment The figure of the structure of the charge mode grouping of power mode.

As shown in figure 20, the message field of charge mode grouping can include charge mode 2031, control error weight value Application time 2032 and control error weight value 2033.Control error weight value 2033 can be with the control that is described above by reference to Figure 19 Error weight value 1932 processed is identical.Control error weight value application time 2032 can represent to receive in wireless power transmitter The control that error weight value 2033 will be controlled to be reflected in CEP after rapid charge is started in the case of corresponding charge mode grouping The time of specific time is reached in error value processed.In more detail, when wireless power transmitter is received with specific time and specific During the corresponding charge mode grouping of value, wireless power transmitter can be changed to rapid charge mould by the way that particular value is reflected in The control of the control error value or the CEP received after rapid charge pattern is changed to of the CEP received before formula is wrong Accidentally wireless charging electric power is controlled to reach the specific time in value.For example, when control error weight value application time 2032 is 0 When, wireless power transmitter can control wireless charging electric power without error weight value 2033 will be controlled to be reflected in the control of CEP In error value.With the increase of control error weight value application time 2032, this can represent that wireless power transmitter will control Error weight value 2033 is applied to the control error value of the CEP received before rapid charge pattern is changed to or is changing The time of the control error value of the CEP received after into rapid charge pattern increases.

For example, as shown in reference numeral 2050, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b4 can be used for setting control error weight value application time 2032.In addition B3 to b0 can For setting control error weight value 2033.In this case, in the range of message value, 0x00 may be used as using to 0x7f In sending out the request that is changed to the first charge mode (that is, being changed to general low power charge pattern from rapid charge pattern) Value, and 0x80 to 0xff may be used as sending out and be changed to the second charge mode (that is, being changed to from general low power charge pattern Rapid charge pattern) request value.Such example is only an example, and the configuration and definition of message field can roots Various changes are carried out according to the realization method of those skilled in the art.

Figure 21 is for describing can be connect based on wireless power transmission process by wireless power according to a kind of embodiment A kind of grouping and the figure of the message format of grouping that receipts device transmits in the power transmission stage.

With reference to Figure 21, can CEP, knot can be included by the grouping that wireless power reception device is transmitted in the power transmission stage The grouping of beam power transmission receives electric power grouping, charged state grouping and the grouping defined for each manufacturer.

Reference numeral 2101 shows the message format of the CEP including controlling error value.Herein, control error value can be Integer value in the range of -128 to+128.When it is negative to control error value, the transmission electric power of wireless power transmission apparatus can To reduce, and when control error value is timing, the transmission electric power of wireless power transmission apparatus can increase.When control error value is When 0, the transmission electric power of wireless power transmission apparatus will not increase or reduce.Particularly, have the CEP of control error value " 0 " can To be referred to as stablizing CEP.

Reference numeral 2102 shows disappearing for the end power transmission grouping of the end power transmission code including a byte Cease form.

Reference numeral 2103 shows the reception electric power grouping of the reception power value including a byte.Herein, electricity is received The averaging rectifier that force value can correspond to calculate for certain period of time receives power value.The practical electricity that receives (receives in advance ) can be calculated based on the power levels and maximum power that are included in configuration packet 1201.For example, practical reception electricity can To be calculated by " (receiving power value/128) * (maximum power/2) * (10 power levels) ".

Reference numeral 2104 shows the message format of the charged state grouping of the state-of-charge value including a byte.It fills Electricity condition value can indicate the battery charge of wireless power reception device.For example, state-of-charge value " 0 " can represent to put completely Electricity condition, state-of-charge value " 50 " can represent 50% charged state, and state-of-charge value " 100 " can represent fully charged shape State.When wireless power reception device does not include rechargeable battery or when cannot provide charging status information, state-of-charge value can be with It is arranged to 0xFF.

Figure 22 is the charge mode figure for describing change charge mode according to a kind of embodiment.

It can include performing general low power charge with reference to the power transmission stage 440 and 540 of Figure 22, Fig. 4 and Fig. 5 First charge mode 2210 and the second charge mode 2220 for performing rapid charge.

When meeting some condition, can change between the first charge mode 2210 and the second charge mode 2220.Example Such as, it is received during charging is carrying out in the first charge mode 2210 from electronic device and is changed to for sending out During the change request of the request of two charge modes 2220, wireless power receiver can be transmitted to send out to wireless power transmitter Go out some grouping for the request for being changed to the second charge mode 2220 to change charge mode.As another example, when second Battery charge is when reaching reference value during charging is carrying out in charge mode 2220, and wireless power receiver can be to Wireless power transmitter transmits some grouping for sending out the request for being changed to the first charge mode 2210.

It can be by power transmission to multiple wireless power receivers according to the wireless power transmitter of another embodiment. In this case, when wireless power receiver accesses wireless power transmitter recently or releases to previous radio power receiver Access when, electric power can be performed to the wireless power receiver that is currently accessed and redistribute processing.For example, as electric power again Allocation result, when rapid charge cannot be then supplied to the wireless power receiver to charge with the second charge mode, radio Power transmitter can transmit some grouping to corresponding wireless power receiver, which, which sends out from the second charge mode 2220, changes Become the request of the first charge mode 2210.

In the above-described embodiment, it has been described that charge mode is divided into the first charge mode 2210 and the second charging mould The example of formula 2220, but this is only a kind of embodiment.In other embodiments, it can limit and add new charging mould Formula (third charge mode, be not shown).For example, the second charge mode 2220 for rapid charge can be subdivided into medium electricity Power rapid charge pattern (not shown) and high electric power rapid charge pattern (not shown).For example, moderate-power rapid charge pattern (not shown) can transmit the electric power of average 9W.High electric power rapid charge pattern (not shown) can transmit the electric power of average 15W. The present invention is not limited to the example, and moderate-power rapid charge pattern (not shown) and high electric power rapid charge pattern (are not shown Go out) different meanings can be defined as.

Initial charge pattern according to embodiment can be by the identification of Fig. 4 and the knowledge of configuration phase 430 or Fig. 5 State information exchange between wireless power transmitter and wireless power receiver or negotiation in the other stage 530 determine.

For example, in the cognitive phase 530 of the identification of Fig. 4 and configuration phase 430 or Fig. 5, wireless power transmitter can To transmit information to wireless power receiver, which is used to identify whether wireless power receiver is that can support rapid charge The device of pattern.At this point, when wireless power receiver be in itself be capable of rapid charge device and battery charge be equal to Or during less than reference value, wireless power receiver can transmit specific point of request rapid charge to wireless power transmitter Group.When wireless power transmitter normally enters the power transmission stage, wireless power transmitter can be received according to wireless power The request of device and be changed to rapid charge pattern and wireless charging can be performed.

It can be determined in the power transmission stage according to the initial charge pattern of another embodiment.For example, when receiving When being grouped (for example, the CEP defined in WPC standards, but the invention is not restricted to this) to initial electrical control data, radio Power transmitter can enter the power transmission stage and can transmit for identify whether to support rapid charge first point Group.Wireless power receiver can receive the first grouping, and can be supported when checking accessed wireless power transmitter During rapid charge, wireless power receiver may determine whether to start rapid charge and can be transmitted to wireless power transmitter The first respond packet including definitive result.That is, can initial charge pattern be determined based on the first respond packet.

Figure 23 is the figure for describing the wireless charging method in wireless power receiver according to a kind of embodiment.

With reference to Figure 23, when wireless power receiver enters the power transmission stage, wireless power receiver can collect it Status information (that is, receiver status information) (S2301).

Wireless power receiver can determine the need for changing charging mould based on collected receiver status information Formula (S2303 to S2305).

For example, receiver status information can include battery charge state information.If for example, in general low power charge Battery charge falls below reference value during charging is carrying out under pattern, then wireless power receiver can determine It needs to be changed to rapid charge pattern.

As another example, receiver status information can include the information about CPU usage.If for example, one As be carrying out under low power charge pattern power consumption being made to increase rapidly since CPU usage is more than reference value during charging Greatly, then wireless power receiver can determine to need to be changed to rapid charge pattern.

As another example, receiver status information can include application software and peripheral unit status information.For example, When the number of currently performed application software is more than reference value, wireless power receiver can determine to need to be changed to fill at a high speed Power mode.For example, peripheral unit status information can include camera drive status information, flash drive status information, loud speaker Drive status information etc..Wireless power receiver can determine the need for being changed at a high speed based on peripheral unit status information Charge mode.

When determining to need to change charge mode, wireless power receiver can be generated including the charge mode to be changed to The charge mode grouping of value, and the charge mode can be grouped and be sent to wireless power transmitter (S2307).

When determining not need to change charge mode (S2305), wireless power receiver may return to S2301.

In the description carried out above by reference to Figure 23, wireless power receiver is described based on receiver status information come really It is fixed whether to change charge mode, but this is only a kind of embodiment.As another example, when according to the use by electronic device The custom menu that family interface performs is selected come when sending out the request for being changed to specific charge mode, wireless power receiver can give birth to It is grouped into for sending out the charge mode for the request for being changed to corresponding charge mode, and charge mode can be grouped and transmitted To wireless power transmitter.

Figure 24 is the figure for describing the wireless charging method in wireless charging system according to a kind of embodiment.

In detail, Figure 24 was changed for describing the charge mode in wireless charging system according to a kind of embodiment The flow chart of journey.

With reference to Figure 24, wireless power transmitter 2410 can be switched to the power transmission stage from identification and configuration phase, so Afterwards when receiving initial control erroneous packet from wireless power receiver 2420, wireless power transmitter 2410 can generate use The first grouping of rapid charge is supported in notice, and first grouping can be transmitted to wireless power receiver 2420 (S2401 and S2402).When based on the first received packet inspection to the support rapid charge mould of wireless power transmitter 2410 Formula and wireless power receiver 2420 are when being capable of the device of rapid charge, and wireless power receiver 2420 can be generated and is used for The first respond packet of rapid charge is asked, and first respond packet can be sent to wireless power transmitter 2410 (S2403)。

Wireless power transmitter 2410 can receive the first respond packet, then before rapid charge pattern is changed to, Wireless power transmitter 2410 can suspend FOD operations (S2404).

Wireless power transmitter 2410 under rapid charge pattern by wireless power transmission to wireless power receiver In the case of 2420, it may occur however that the loss of wireless power.At this point, wireless power transmitter 2410 can be by using from wireless The reception electric power that power receiver 2420 receives is grouped the loss to check wireless power.Wireless power transmitter 2410 can be with It determines to detect FO based on electric power grouping is received.Therefore, wireless power transmitter 2410 can stop receiving to wireless power Device 2420 transmits wireless power.That is, by wireless power transmission to wireless power receiver under rapid charge pattern In the case of 2420, wireless power transmitter 2410 FO detections can be operated and be stopped wireless caused by power consumption occurs The transmission of electric power.

The transmission of wireless power stops in order to prevent, and wireless power transmitter 2410 according to embodiment can change Suspend FOD operations before into rapid charge pattern.It is operated for example, wireless power transmitter 2410 can stop FOD up to one second extremely Five seconds.According to another embodiment, wireless power transmitter 2410 can stop FOD operations and reach less than one second or more than five seconds. For example, wireless power transmitter 2410 can receive the first respond packet, then can ignore from wireless power receiver 2420 The reception electric power received is grouped up to one second to five seconds.As an alternative, wireless power transmitter 2410 can receive the first response point Then group can ignore the power consumption result as caused by from the reception electric power grouping that wireless power receiver 2420 receives and reach One second to five seconds.As an alternative, wireless power transmitter 2410 can receive the first respond packet, may then based on by from wireless Power consumption result caused by the grouping of reception electric power that power receiver 2420 receives does not calculate power consumption value up to one second extremely Five seconds.When have passed through the predetermined time, wireless power transmitter 2410 can restart FOD operations.

When have passed through the charge mode change waiting time, wireless power receiver 2420 and wireless power transmitter 2410 It can be changed to rapid charge pattern simultaneously and can be with fixed operation frequency to start rapid charge (S2405).According to another Embodiment, after it have passed through charge mode and change the waiting time, wireless power transmitter 2410 can suspend FOD operations. That is, according to another embodiment, when have passed through the charge mode change waiting time, wireless power transmitter 2410 can To suspend FOD operations, while rapid charge pattern is changed to, and fixed operation frequency is to start rapid charge.

Herein, the charge mode change waiting time can be predefined or as shown in figure 15, can be by wireless power Receiver 2420 determines, and can be sent to wireless power transmitter 2410 by the first respond packet.In addition, fixed operation Frequency can be predefined or as shown in figure 16, can be determined by wireless power receiver 2420, and can be by the One respond packet is sent to wireless power transmitter 2410.

Therefore, in embodiments, the operating frequency for stably generating AC signals can be fixed, and then can perform nothing Micro USB electricity, so as to which charging be prevented to be disconnected.In addition, charged area and the behaviour of the AC signals in unstable generation under the above situation The wireless charging performed under working frequency is compared to wider.

Figure 25 is the figure for describing the wireless charging method in wireless power transmitter according to a kind of embodiment.

With reference to Figure 25, wireless power transmitter can be switched to the power transmission stage, then, when from wireless power receiver When receiving the grouping controlled for initial electrical, wireless power transmitter can generate that rapid charge pattern is supported in instruction One grouping, and first grouping can be transmitted to wireless power receiver (S2501 and S2503).

Wireless power transmitter can receive the first respond packet (S2503) including charge mode value.

Wireless power transmitter can check whether charge mode value is rapid charge pattern (S2504).

When charge mode value is rapid charge pattern, wireless power transmitter can suspend FOD operations (S2505).

Wireless power transmitter under rapid charge pattern by the situation of wireless power transmission to wireless power receiver Under, it may occur however that the loss of wireless power.At this point, wireless power transmitter can be received by using from wireless power receiver To reception electric power be grouped to check the loss of wireless power.Wireless power transmitter can be determined based on electric power grouping is received Detect FO.Therefore, wireless power transmitter can stop transmitting wireless power to wireless power receiver.That is, By in the case of wireless power transmission to wireless power receiver under rapid charge pattern, wireless power transmitter can be due to hair FO detections operate and stop the transmission of wireless power caused by raw power consumption.

The transmission of wireless power stops in order to prevent, and wireless power transmitter according to embodiment can be changed to height Suspend FOD operations before fast charge mode.For example, wireless power transmitter can stop FOD operations up to one second to five seconds.According to Another embodiment, wireless power transmitter can stop FOD operations and reach less than one second or more than five seconds.For example, when charging mould When formula value is rapid charge pattern, wireless power transmitter can ignore the reception electric power point received from wireless power receiver Group was up to one second to five seconds.As an alternative, when charge mode value be rapid charge pattern when, wireless power transmitter can ignore by from Power consumption result was up to one second to five seconds caused by the reception electric power grouping that wireless power receiver receives.As an alternative, when filling When power mode value is rapid charge pattern, wireless power transmitter can be based on the reception by being received from wireless power receiver Power consumption result caused by electric power is grouped does not calculate power consumption value up to one second to five seconds.When have passed through the predetermined time, nothing Line power transmitter can restart FOD operations.

Wireless power transmitter can suspend FOD operations, then, when have passed through certain time, wireless power transmitter Operating frequency can be fixed to rapid charge pattern and charging (S2506) can be performed.Herein, the certain time can be with It is predefined in the first respond packet or as shown in figure 15, can be that charge mode changes the waiting time.In addition, fixed behaviour Working frequency can predefine in the first respond packet or can be the operating frequency of AC signals as shown in figure 16.

According to another embodiment, after have passed through certain time, wireless power transmitter can suspend FOD operations. That is, according to another embodiment, when have passed through certain time, wireless power transmitter can suspend FOD operations, together When be changed to rapid charge pattern, and fixed operation frequency is to start rapid charge.

When it is not rapid charge pattern (that is, charge mode is general low power charge pattern) to check charge mode (S2504), wireless power transmitter can perform charging (S2507) under general low power charge pattern.

Figure 26 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment.

With reference to Figure 26, wireless power transmitter can be in cognitive phase 530 (or identification and the configuration phase of Fig. 4 and Fig. 5 430) it or in the power transmission stage 440 or 540, receives and fills in the case where charge mode value is arranged to rapid charge pattern Power mode is grouped (S2601).

At this point, may determine whether can be with rapid charge (S2602) for wireless power transmitter.

When determine can be with rapid charge when, wireless power transmitter can generate instruction support rapid charge pattern first Grouping, and first grouping can be sent to corresponding wireless power receiver (S2603).

Wireless power transmitter can receive the first grouping and can suspend FOD operations (S2604).

After have passed through certain time, operating frequency can be fixed to rapid charge pattern by wireless power transmitter, And wireless charging (S2605) can be performed.According to another embodiment, wireless power transmitter can fix operating frequency To rapid charge pattern, FOD operations then can be suspended.According to another embodiment, wireless power transmitter can suspend FOD Operation, and at the same time wireless charging can be performed.When have passed through the predetermined time, wireless power transmitter can restart FOD is operated.

When determining to be unable to rapid charge (S2602), it cannot be to correspond to that wireless power transmitter, which can be transmitted and is used to indicate, Wireless power receiver provide rapid charge second packet, then can be arranged to acquiescence general low power charge Charging (S2606 and S2607) is performed under pattern.

Figure 27 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment.

In detail, Figure 27 was changed for describing the charge mode in wireless charging system according to a kind of embodiment The flow chart of journey.

With reference to Figure 27, wireless power transmitter 2710 can be switched to the power transmission stage from identification and configuration phase, so Afterwards when receiving initial control erroneous packet from wireless power receiver 2720, wireless power transmitter 2710 can generate use The first grouping of rapid charge is supported in notice, and first grouping can be transmitted to wireless power receiver 2420 (S2701 and S2702).When based on the first received packet inspection to the support rapid charge mould of wireless power transmitter 2710 Formula and wireless power receiver 2720 are when being capable of the device of rapid charge, and wireless power receiver 2720 can be generated and is used for The first respond packet of rapid charge is asked, and first respond packet can be sent to wireless power transmitter 2710 (S2703)。

Wireless power transmitter 2720 changes to receive stable control in the case of being 0 in the value of control erroneous packet The operating frequency of erroneous packet processed, so as to generate AC signals (S2704).When the value of erroneous packet is controlled to be not 0, wireless power Transmitter 2720 can change operating frequency, until the stability contorting erroneous packet that the value for receiving control erroneous packet is 0 is Only (S2705).According to embodiment, even if when the value of erroneous packet is controlled to be not 0, wireless power transmitter 2720 still can be with By frequency shift into operating frequency corresponding with situation that the change width of erroneous packet is maintained in particular range will be controlled. Therefore, stability contorting erroneous packet can include the electricity that electric power change width needed for control erroneous packet is smaller or keeps constant Power changes the situation of width.

When continuously receiving given number or more stability contorting erroneous packet, wireless power transmitter 2710 can be with Stop FOD operations up to the predetermined time (S2706).

Wireless power transmitter 2710 under rapid charge pattern by wireless power transmission to wireless power receiver In the case of 2720, it may occur however that the loss of wireless power.At this point, wireless power transmitter 2710 can be by using from wireless The reception electric power that power receiver 2720 receives is grouped the loss to check wireless power.Wireless power transmitter 2710 can be with It determines to detect FO based on electric power grouping is received.Therefore, wireless power transmitter 2710 can stop receiving to wireless power Device 2720 transmits wireless power.That is, by wireless power transmission to wireless power receiver under rapid charge pattern In the case of 2720, wireless power transmitter 2710 FO detections can be operated and be stopped wireless caused by power consumption occurs The transmission of electric power.

The transmission of wireless power stops in order to prevent, and wireless power transmitter 2710 according to embodiment can change Suspend FOD operations before into rapid charge pattern.It is operated for example, wireless power transmitter 2710 can stop FOD up to one second extremely Five seconds.According to another embodiment, wireless power transmitter 2410 can stop FOD operations and reach less than one second or more than five seconds. For example, when continuously receiving given number or more stability contorting erroneous packet, wireless power transmitter 2710 can neglect Slightly it is grouped from the reception electric power that wireless power receiver 2720 receives up to one second to five seconds.As an alternative, when continuously receiving spy During fixed number mesh or more stability contorting erroneous packet, wireless power transmitter 2710 can be ignored by from wireless power receiver Power consumption result was up to one second to five seconds caused by the 2720 reception electric power groupings received.As an alternative, when continuously receiving spy During fixed number mesh or more stability contorting erroneous packet, wireless power transmitter 2710 can be based on by from wireless power receiver Power consumption result caused by the 2720 reception electric power groupings received does not calculate power consumption value up to one second to five seconds.Work as process During the predetermined time, wireless power transmitter 2710 can restart FOD operations.

According to another embodiment, the first sound for asking rapid charge is being received from wireless power receiver 2720 After the operation (S2703) that should be grouped, when the charge mode value that the first respond packet includes is rapid charge pattern, wirelessly Power transmitter 2710 can stop FOD operations.In addition, after FOD operations stop, wireless power transmitter 2710 can be into Row arrives the operation (S2704) for changing operating frequency.

Wireless power transmitter 2710 can stop FOD operations, while be changed to rapid charge pattern, and fixed operation Frequency is to start rapid charge (S2707).Herein, it can be predefined that charge mode, which changes stability contorting erroneous packet count value, Or as shown in figure 17, can be determined by wireless power receiver 2720, and can be sent to by the first respond packet Wireless power transmitter 2710.

Therefore, in one embodiment, the operating frequency for stably generating AC signals can be fixed, and After FOD stops the predetermined time, wireless charging can be performed, thus prevents charging from disconnecting.In addition, with generating unstable AC The wireless charging performed under the operating frequency of signal is compared, and wireless charging is performed in wide charged area.

Figure 28 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment.

With reference to Figure 28, wireless power transmitter can be switched to the power transmission stage, then, when from wireless power receiver When receiving initial control erroneous packet, wireless power transmitter, which can generate to be used to indicate, supports the first of rapid charge pattern Grouping, and first grouping can be sent to wireless power receiver (S2801 and S2802).

Wireless power transmitter can receive the first respond packet (S2803) including charge mode value.

Wireless power transmitter can check whether charge mode value is rapid charge pattern (S2804).

When charge mode value is rapid charge pattern, wireless power transmitter can be such that FOD operations stop up to pre- timing Between (S2805).

The transmission of wireless power stops in order to prevent, and wireless power transmitter according to embodiment can be changed to height Suspend FOD operations before fast charge mode.For example, wireless power transmitter can stop FOD operations up to one second to five seconds.According to Another embodiment, wireless power transmitter can stop FOD operations and reach less than one second or more than five seconds.For example, it ought continuously connect When receiving given number or more stability contorting erroneous packet, wireless power transmitter can be ignored from wireless power receiver The reception electric power received is grouped up to one second to five seconds.As an alternative, when continuously receiving given number or more stability contorting During erroneous packet, wireless power transmitter can be ignored as caused by from the reception electric power grouping that wireless power receiver receives Power consumption result was up to one second to five seconds.As an alternative, when continuously receiving given number or more stability contorting erroneous packet When, wireless power transmitter can be based on the power consumption as caused by from the reception electric power grouping that wireless power receiver receives As a result power consumption value was not calculated up to one second to five seconds.When have passed through the predetermined time, wireless power transmitter can open again Dynamic FOD operations.

Wireless power transmitter can stop FOD operations, while change operating frequency, generate AC signals, and inspection is It is no to receive stability contorting erroneous packet (S2806).

Wireless power transmitter can be checked and continuously be connect under the special operating frequency for receiving stability contorting erroneous packet Whether the number of the counting stability contorting erroneous packet of receipts is equal to or more than particular value (S2807).When the counting continuously received is steady Surely when the number of control erroneous packet is less than particular value, wireless power transmitter can be with repetitive operation (S2806).

When checking the number of counting stability contorting erroneous packet continuously received equal to or more than particular value, radio Operating frequency can be fixed to rapid charge pattern, and can perform charging (S2808) by power transmitter.The particular value can be with It is predefined in the first respond packet or as shown in figure 17, can be that charge mode changes stability contorting erroneous packet meter Numerical value.In embodiments, rapid charge pattern can represent that inverter style is arranged to or is changed to bridge-type, and Electrical control method is arranged to or is changed to phase control method.

According to another embodiment, when the number of counting stability contorting erroneous packet continuously received is equal to or more than specific During value, wireless power transmitter can stop FOD operations, and operating frequency is fixed as rapid charge pattern, and perform charging.

When it is not rapid charge pattern (that is, charge mode is general low power charge pattern) to check charge mode (S2804), wireless power transmitter can perform charging (S2808) under general low power charge pattern.

In embodiments, general low power charge pattern can represent that inverter style is arranged to or is changed to half Bridge type, and electrical control method is arranged to or is changed to control method for frequency.

Figure 29 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment.

With reference to Figure 29, wireless power transmitter can be in cognitive phase 530 (or identification and the configuration phase of Fig. 4 and Fig. 5 430) it or receives and fills in the case where charge mode value is arranged to rapid charge pattern in the power transmission stage 440 or 540 Power mode is grouped (S2901).

At this point, may determine whether can be with rapid charge (S2902) for wireless power transmitter.

When determining that rapid charge can be carried out, wireless power transmitter can generate instruction and support rapid charge pattern First grouping, and first grouping can be transmitted to corresponding wireless power receiver (S2903).

In embodiments, rapid charge pattern can represent that inverter style is arranged to or is changed to bridge-type, And electrical control method is arranged to or is changed to phase control method.

Wireless power transmitter can change operating frequency, generate AC signals, and check whether and receive stability contorting Erroneous packet (S2904).

Wireless power transmitter can be checked and continuously be connect under the special operating frequency for receiving stability contorting erroneous packet Whether the number of the counting stability contorting erroneous packet of receipts is equal to or more than particular value (S2905).When the counting continuously received is steady Surely when the number of control erroneous packet is less than particular value, wireless power transmitter can be with repetitive operation (S2904).

When the counting stability contorting mistake continuously received under the special operating frequency for receiving stability contorting erroneous packet When the number of grouping is equal to or more than particular value, wireless power transmitter can stop FOD operations (S2906).

The transmission of wireless power stops in order to prevent, and wireless power transmitter according to embodiment can be changed to height Suspend FOD operations before fast charge mode.For example, wireless power transmitter can stop FOD operations up to one second to five seconds.According to Another embodiment, wireless power transmitter can stop FOD operations and reach less than one second or more than five seconds.For example, when receiving The number of counting stability contorting erroneous packet continuously received under to the special operating frequency of stability contorting erroneous packet be equal to or During more than particular value, wireless power transmitter can ignore the reception electric power received from wireless power receiver and be grouped up to one second To five seconds.As an alternative, when what is continuously received under the special operating frequency for receiving stability contorting erroneous packet counts stabilization When the number of erroneous packet being controlled to be equal to or more than particular value, wireless power transmitter can be ignored by from wireless power receiver Power consumption result was up to one second to five seconds caused by the reception electric power grouping received.As an alternative, when receiving stability contorting The number of counting stability contorting erroneous packet continuously received under the special operating frequency of erroneous packet is equal to or more than particular value When, wireless power transmitter can be based on the power consumption as caused by from the reception electric power grouping that wireless power receiver receives As a result power consumption value was not calculated up to one second to five seconds.When have passed through the predetermined time, wireless power transmitter can open again Dynamic FOD operations.

According to another embodiment, after S2903, when receiving to ask rapid charge from wireless power receiver The first respond packet when, wireless power transmitter can stop FOD operation.According to another embodiment, operate and stop in FOD Later, wireless power transmitter may proceed to S2904, change operating frequency, and checks whether and receive stability contorting mistake Accidentally it is grouped.

After FOD operations stop, operating frequency can be fixed to rapid charge pattern and can by wireless power transmitter To perform charging (S2906).The particular value can be predefined in charge mode grouping or as shown in figure 17, Ke Yishi Charge mode changes stability contorting erroneous packet count value.

In embodiments, rapid charge pattern can represent that inverter style is arranged to or is changed to bridge-type, And electrical control method is arranged to or is changed to stage control.

When determine cannot carry out rapid charge when (S2902), wireless power transmitter can transmit be used to indicate it cannot The second packet of rapid charge is provided for corresponding wireless power receiver, it then can be in the general low electricity for being arranged to acquiescence Charging (S2907 and S2908) is performed under power charge mode.

Figure 30 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment.

In detail, Figure 30 is for describing to control based on CEP after charge mode is changed in wireless charging system The figure of the method for wireless charging electric power processed.

With reference to Figure 30, wireless power transmitter 3010 can be changed to rapid charge pattern in general low power charge pattern Pause FOD operations (S3001) before.

Wireless power transmitter 3010 under rapid charge pattern by wireless power transmission to wireless power receiver In the case of 3020, it may occur however that the loss of wireless power.At this point, wireless power transmitter 3010 can be by using from wireless The reception electric power that power receiver 3020 receives is grouped the loss to check wireless power.Wireless power transmitter 3010 can be with It determines to detect FO based on electric power grouping is received.Therefore, wireless power transmitter 3010 can stop receiving to wireless power Device 3020 transmits wireless power.That is, by wireless power transmission to wireless power receiver under rapid charge pattern In the case of 3020, wireless power transmitter 3010 FO detections can be operated and be stopped wireless caused by power consumption occurs The transmission of electric power.

The transmission of wireless power stops in order to prevent, and wireless power transmitter 3010 according to embodiment can change Suspend FOD operations before into rapid charge pattern.It is operated for example, wireless power transmitter 3010 can stop FOD up to one second extremely Five seconds.According to another embodiment, wireless power transmitter 3010 can stop FOD operations and reach less than one second or more than five seconds. It is grouped for example, wireless power transmitter 3010 can ignore the reception electric power received from wireless power receiver 3020 up to one second To five seconds.As an alternative, wireless power transmitter 3010 can ignore the reception electricity by being received from wireless power receiver 3020 Power consumption result was up to 1 second to 5 seconds caused by power is grouped.As an alternative, wireless power transmitter 3010 can be based on by from wireless Power consumption result caused by the grouping of reception electric power that power receiver 3020 receives does not calculate power consumption value up to one second extremely Five seconds.When have passed through the predetermined time, wireless power transmitter 3010 can restart FOD operations.

Wireless power transmitter 3010 can stop FOD operations, then can receive CEP from wireless power receiver 3020 (S3002)。

Wireless power receiver 3020 and wireless power transmitter 3010 can be with according to fig. 24 to Figure 29 wireless charging systems Charge mode in system changes process to start rapid charge (S3003).According to another embodiment, wireless power transmitter 3010 can start rapid charge, and can be simultaneously stopped FOD operations up to the predetermined time.

Wireless power transmitter 3010 can stop Electric control or base based on the CEP (S3002) received in operation Stop Electric control up to the Electric control dwell time (S3004 and S3005) based on CEP in the CEP received.Herein, base It can be predefined in the Electric control dwell time of CEP or as shown in figure 18, it can be true by wireless power receiver 3020 It is fixed, and can wireless power transmitter 3010 be sent to by the first respond packet.In addition, wireless power transmitter 3010 can To control the wireless charging electric power for being not based on controlling error value or control wireless charging based on specific cluster rather than CEP Electric power reaches the Electric control dwell time based on CEP.

When have passed through the Electric control dwell time based on CEP, wireless power transmitter 3010 can be based on passing through The CEP received after the time starts wireless charging Electric control (S3006 and S3007).

Figure 31 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment.

With reference to Figure 31, wireless power transmitter can be before the power transmission stage performs charging with rapid charge pattern temporarily Stop FOD operations (S3101).

The transmission of wireless power stops in order to prevent, and wireless power transmitter according to embodiment can be changed to height Suspend FOD operations before fast charge mode.For example, wireless power transmitter can stop FOD operations up to one second to five seconds.According to Another embodiment, wireless power transmitter can stop FOD operations and reach less than one second or more than five seconds.For example, wireless power Transmitter can ignore the reception electric power received from wireless power receiver and be grouped up to one second to five seconds.As an alternative, radio Power transmitter can ignore as caused by from the grouping of reception electric power that wireless power receiver receives power consumption result up to one Second was to five seconds.As an alternative, wireless power transmitter can be grouped based on the reception electric power by being received from wireless power receiver Caused power consumption result does not calculate power consumption value up to one second to five seconds.When have passed through the predetermined time, wireless power hair Emitter can restart FOD operations.

Wireless power transmitter can stop FOD operations in the power transmission stage, and at the same time can be in rapid charge Charging (S3102) is performed under pattern.

Based on the CEP (not shown) received before rapid charge pattern is changed to or it is being changed to rapid charge pattern The CEP (not shown) received later, wireless power transmitter can stop Electric control.

Wireless power transmitter can check whether elapsed time is equal to or more than be based on after rapid charge is started The Electric control dwell time (S3104) of CEP.Electric control dwell time based on CEP can be predefined or such as Figure 18 It is shown, it can be determined by wireless power receiver, and can wireless power transmitter be sent to by the first respond packet.

When check elapsed time after starting rapid charge be equal to or more than Electric control dwell time when, wirelessly Power transmitter can start Electric control based on the CEP received after the Electric control dwell time based on CEP (S3105)。

When checking elapsed time and do not reach Electric control dwell time (S3104), wireless power transmitter can With repetitive operation (S3103).

Figure 32 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment.

In detail, Figure 32 is to be used to describe to control based on CEP after charge mode change in wireless charging system The figure of the method for wireless charging electric power.

With reference to Figure 32, wireless power transmitter 3210 can be based on the first control received under general low power charge pattern Error weight value processed and CEP perform Electric control (S3201 and S3202).Herein, the first control error weight value can be pre- Definition is as shown in figure 19, can be determined by wireless power receiver 3220, and can be passed by the first respond packet It send to wireless power transmitter 3210.

Wireless power transmitter 3210 can receive the first respond packet, then can suspend FOD operations (S3203).

Wireless power transmitter 3210 under rapid charge pattern by wireless power transmission to wireless power receiver In the case of 3220, it may occur however that the loss of wireless power.At this point, wireless power transmitter 3210 can be by using from wireless Reception electric power received by power receiver 3220 is grouped the loss to check wireless power.Wireless power transmitter 3210 can To determine to detect FO based on electric power grouping is received.Therefore, wireless power transmitter 3210 can stop connecing to wireless power It receives device 3220 and transmits wireless power.That is, by wireless power transmission to wireless power receiver under rapid charge pattern In the case of 3220, wireless power transmitter 3210 FO detections can be operated and be stopped wireless caused by power consumption occurs The transmission of electric power.When have passed through the predetermined time, wireless power transmitter 3210 can restart FOD operations.

The transmission of wireless power stops in order to prevent, and wireless power transmitter 3210 according to embodiment can change Suspend FOD operations before into rapid charge pattern.It is operated for example, wireless power transmitter 3210 can stop FOD up to one second extremely Five seconds.According to another embodiment, wireless power transmitter 3210 can stop FOD operations and reach less than one second or more than five seconds. It is grouped for example, wireless power transmitter 3210 can ignore the reception electric power received from wireless power receiver 3220 up to one second To five seconds.As an alternative, wireless power transmitter 3210 can ignore the reception electricity by being received from wireless power receiver 3220 Power consumption result was up to one second to five seconds caused by power is grouped.As an alternative, wireless power transmitter 3210 can be based on by from nothing Power consumption result caused by reception electric power grouping received by line power receiver 3220 does not calculate power consumption value up to one Second was to five seconds.

Wireless power receiver 3220 and wireless power transmitter 3210 can stop FOD operations, then can be according to figure Charge mode in 24 to Figure 29 wireless charging system changes process to start rapid charge (S3204).

Wireless power transmitter 3210 can be changed to rapid charge pattern, may then based in general low power charge The CEP received under pattern, the CEP and second received under rapid charge pattern control error weight value to perform charge control (S3205 and S3206).Herein, the second control error weight value can be predefined or as shown in figure 19, can be by nothing Line power receiver 3220 determines, and can be sent to wireless power transmitter 3210 by the first respond packet.In addition, The CEP received under general low power charge pattern can be received before rapid charge pattern is made into, but can change Become rapid charge pattern and the CEP of Electric control is carried out based on it later.

Figure 33 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment.

With reference to Figure 33, wireless power transmitter can transmit wireless power in the power transmission stage with rapid charge pattern Pause FOD operations (S3301) before.

Wireless power transmitter under rapid charge pattern by the situation of wireless power transmission to wireless power receiver Under, it may occur however that the loss of wireless power.At this point, wireless power transmitter can be received by using from wireless power receiver To reception electric power be grouped to check the loss of wireless power.Wireless power transmitter can determine inspection based on electric power grouping is received Measure FO.Therefore, wireless power transmitter can stop transmitting wireless power to wireless power receiver.That is, in height By in the case of wireless power transmission to wireless power receiver under fast charge mode, wireless power transmitter can be due to occurring FO detections operate and stop the transmission of wireless power caused by power consumption.

Wireless power transmitter can stop FOD operations in the power transmission stage, and at the same time can be in rapid charge Charging (S3302) is performed under pattern.

Wireless power transmitter may be received in be changed to the CEP (not shown) that receives before rapid charge pattern or It may be received in the CEP (not shown) for being changed to and being received after rapid charge pattern.

It can be received before rapid charge pattern is changed in the CEP received before being changed to rapid charge pattern, But can be based on its progress after rapid charge pattern is changed in the CEP received before being changed to rapid charge pattern The CEP of Electric control.

Wireless power transmitter can will control error weight value to be reflected in the first control error value of the CEP received With the second control error value (S3304) of generation.Second control error weight value can be it is predefined or as shown in figure 19, It can be determined by wireless power receiver, and can wireless power transmitter be sent to by the first respond packet.

Wireless power transmitter can control output power (S3305) based on the second control error value of generation.Then, When performing charging under rapid charge pattern, wireless power transmitter may return to S3303.

Figure 34 is the figure for describing the wireless charging method in the wireless charging system according to another embodiment.

In detail, Figure 34 is for describing to control nothing based on CEP after charge mode changes in wireless charging system The figure of the method for line charging power.

With reference to Figure 34, wireless power transmitter 3410 can be changed to rapid charge mould from general low power charge pattern Before formula CEP (S3401) is received from wireless power receiver 3420.

When receiving control erroneous packet, wireless power transmitter 3410 can suspend FOD operations (S3402).

Wireless power transmitter 3410 under rapid charge pattern by wireless power transmission to wireless power receiver In the case of 3420, it may occur however that the loss of wireless power.At this point, wireless power transmitter 3410 can be by using from wireless Power receiver 3420 receives electric power grouping to check the loss of wireless power.Wireless power transmitter 3410 can be based on receiving Electric power is grouped to determine to detect FO.Therefore, wireless power transmitter 3410 can stop passing to wireless power receiver 3420 Defeated wireless power.That is, by wireless power transmission to the situation of wireless power receiver 3420 under rapid charge pattern Under, wireless power transmitter 3410 can the FO detections operation caused by power consumption occurs and stop the biography of wireless power It is defeated.When have passed through the predetermined time, wireless power transmitter 3410 can restart FOD operations.

The transmission of wireless power stops in order to prevent, and wireless power transmitter 3410 according to embodiment can change Suspend FOD operations before into rapid charge pattern.It is operated for example, wireless power transmitter 3410 can stop FOD up to one second extremely Five seconds.According to another embodiment, wireless power transmitter 3410 can stop FOD operations and reach less than one second or more than five seconds. For example, when continuously receiving given number or more stability contorting erroneous packet, wireless power transmitter 3410 can neglect Slightly it is grouped from the reception electric power that wireless power receiver 3420 receives up to one second to five seconds.As an alternative, when continuously receiving spy During fixed number mesh or more stability contorting erroneous packet, wireless power transmitter 3410 can be ignored by from wireless power receiver Power consumption result was up to one second to five seconds caused by the 3420 reception electric power groupings received.As an alternative, when continuously receiving spy During fixed number mesh or more stability contorting erroneous packet, wireless power transmitter 3410 can be based on by from wireless power receiver Power consumption result caused by the 3420 reception electric power groupings received does not calculate power consumption value up to one second to five seconds.

Wireless power receiver 3420 and wireless power transmitter 3410 can stop FOD operations, then can be according to figure Charge mode in 24 to Figure 29 wireless charging system changes process to start rapid charge (S3403).

Wireless power transmitter 3410 can be based on after rapid charge pattern is changed in general low power charge mould (S3204 is arrived to perform Electric control for the CEP that is received under formula, the CEP received under rapid charge pattern and control error weight value S3205).Herein, control error weight value can be predefined or as shown in figure 20, can be by wireless power receiver 3420 determine, and can be transferred into wireless power transmitter 3410 by the first respond packet.In addition, with general low electric power The CEP that charge mode receives can be received before rapid charge pattern is changed to, but with general low power charge pattern The CEP of reception can carry out the CEP of Electric control based on it after rapid charge pattern is changed to.

When have passed through control error weight value application time, wireless power transmitter 3410 can be based on have passed through this The CEP that receives after time starts wireless charging Electric control (S3006 and S3007).That is, wireless power emits Device 3410 can perform wireless charging Electric control, without the control error value application weighting value to received CEP.This Place, control error weight value application time can be it is predefined or as shown in figure 20, can be by wireless power receiver 3420 determine, and can be transferred into wireless power transmitter 3410 by the first respond packet.

Figure 35 is the figure for describing the wireless charging method in the wireless power transmitter according to another embodiment.

With reference to Figure 35, before performing to the charging of rapid charge pattern, wireless power transmitter can suspend FOD operations (S3501)。

Wireless power transmitter can stop FOD operations, and at the same time charging can be performed under rapid charge pattern (S3502)。

Wireless power transmitter may be received in be changed to the CEP (not shown) that receives before rapid charge pattern or Person may be received in the CEP (not shown) for being changed to and being received after rapid charge pattern (S3502).It is being changed to rapid charge The CEP received before pattern can be received before rapid charge pattern is changed to, but be changed to rapid charge pattern The CEP received before can carry out the CEP of Electric control based on it after rapid charge pattern is changed to.

Wireless power transmitter can will control error weight value to be reflected in the first control error value of the CEP received With the second control error value (S3504) of generation.Second control error weight value can be it is scheduled or as shown in figure 20, can To be determined by wireless power receiver, and can wireless power transmitter be sent to by the first respond packet.

Wireless power transmitter can control output power (S3505) based on the second control error value of generation.

Wireless power transmitter can check whether elapsed time is equal to or more than control after rapid charge is started Error weight value application time (S3506).Control error weight value application time can be predefined or as shown in figure 20, It can be determined by wireless power receiver, and can wireless power transmitter be sent to by the first respond packet.

When check starting rapid charge after elapsed time be equal to or more than control error weight value application time When, the first control that wireless power transmitter can be based on the CEP received after error weight value application time is controlled is wrong Value or the CEP received before error weight value application time is controlled are missed to control output power (S3507).

When check elapsed time do not reach control error weight value application time (S3506) when, wireless power hair Emitter can be with repetitive operation (S3503).

Figure 36 is the figure for describing wireless charging transmitting coil according to a kind of embodiment.

With reference to Figure 36, three transmitting coils can be provided.It is uniform in order to be performed in the charged area with a certain size Power transmission, at least one of multiple coils can be arranged to overlap with other coils.In Figure 36, first coil 3610 and second coil 3620 can set on the first layer and be arranged on shielding material, and can be spaced certain Spacing, and tertiary coil 3630 can set on the second layer and be arranged on first coil and the second coil on with One coil and the second coil overlap.

First coil 3610, the second coil 3620 and tertiary coil 3630 can be according to the coil marks defined in WPC or PMA Standard manufactures, and can have identical physical characteristic in admissible range.

For example, transmitting coil can have the standard shown in the following table 1.

[table 1]

Table 1 shows the standard of the A13 type transmitting coils defined in WPC, and such as first coil 3610, the second line Circle 3620 and tertiary coil 3630 can be manufactured with the outer length limited in table 1, inner length, external width, interior Portion's width, thickness and every layer of the number of turn.That is, first coil 3610, the second coil 3620 and tertiary coil 3630 can There is the same physical in error range by identical manufacturing process.

However, as shown in figure 36, in first coil 3610, the second coil 3620 and tertiary coil 3630, the electricity of measurement Inductance value be likely to be dependent on from the position of the relationship of shielding material and it is different.

For example, 3610 and second coil 3620 of first coil can meet the standard of table 1, and can be with 12.5 μ H's Inductance.On the other hand, the distance between shielding material and tertiary coil 3630 can be different from shielding material and first coil The distance between 3610 and the second each in coil 3620, and therefore tertiary coil 3630 can have and be less than 12.5 μ H Inductance.

It is contacted for example, 3610 and second coil 3620 of first coil can be arranged to shielding material, but third line Circle 3630 can separate certain height with shielding material.

In embodiments, adhesive can be arranged on shielding material and first coil 3610, the second coil 3620 and Between tertiary coil 3630.

Therefore, in embodiments, in order to make tertiary coil 3630 have the electricity identical with first coil and the second coil Sense, tertiary coil 3630 can have the numbers of turn more several greatly than the number of turn of each in 3610 and second coil 3620 of first coil The number of turn (for example, 0.5 circle, 1 circle or 2 circles).

In embodiments, tertiary coil 3630 can have 12.5 circles, 13 circles or 14 circles in terms of the number of turn.

In other words, being arranged in the tertiary coil 3630 at center can be arranged to and 3610 and second coil of first coil 3620 compare further from shielding material, and therefore the measurement inductance of tertiary coil 3630 can be different from 3610 He of first coil The measurement inductance of second coil 3620.Therefore, slightly longer than the can be adjusted to by forming the length of the conducting wire of tertiary coil 3630 One coil 3610 and the second coil 3620, and therefore the inductance of tertiary coil 3630 can be adjusted to and first coil 3610 It is identical with the inductance of the second coil 3620.

In embodiments, since the length for the conducting wire for forming tertiary coil 3630 is adjusted to slightly longer than first coil 3610 and second coil 3620, so while tertiary coil 3630 is arranged to compared with first coil 3630 further from shielding material 3610 and second coil 3620 of stockline circle, but three coils (that is, first coil to tertiary coil) can be with 12.5 μ H's Identical inductances.In embodiments, the identical error range for representing ± 0.5 μ H of presence of the inductance of coil.

In the transmitting coil to overlap each other is arranged to, with the reduction of the distance with shielding material, the inductance of measurement It can be lower, and with the increase of the distance with shielding material, the length of transmitting coil can be elongated, to increase inductance.

Figure 37 is for describing including in the wireless power transmitter including multiple coils according to a kind of embodiment The figure of three driving circuits of bridge-type inverter.

With reference to Figure 37, if there is different inductance in three coils that wireless power transmitter includes, need point It is not connected to three driving circuits 3710 of three coils and includes generating the capacitor three of identical resonant frequency A LC resonance circuit 3720.

Even if in the case where wireless power transmitter includes multiple coils, it is used to hold by wireless power transmitter generation The resonant frequency of row power transmission should be based on the standard resonant frequency supported by wireless power transmitter rather than depending on hair Ray circle and it is different.

The resonant frequency generated by LC resonance circuit 3720 can change according to the inductance of coil and the capacitance of capacitor.

For example, resonant frequency can be 100KHz, and if coil is connected to generate the capacitor of resonant frequency Capacitance is 200nF, then should all meet 12.5 μ H using only three coils of a capacitor.If the inductance of three coils Difference then needs that there are three capacitors of capacitance different from each other to generate the resonant frequency of 100KHz.In addition, it is necessary to including using Apply three driving circuits 3710 of the inverter of AC voltages in each into LC resonance circuit 3720.

Figure 38 is for describing the wireless power for including a driving circuit and multiple coils according to a kind of embodiment The figure of transmitter.

With reference to Figure 38, if the inductance of three coils that wireless power transmitter includes is identical, wireless power transmitting Device can only include a driving circuit 3810, and can control switch 3830 that a driving circuit 3810 is connected to nothing The coil of the wireless power transmitter with highest power transmission efficiency in the coil of line power receiver and three coils.

Compared with Figure 37, by the way that a driving circuit 3810 is used only, reduces and accounted for by the element of wireless power transmitter According to area, and therefore wireless power transmitter itself is miniaturized, so as to reduce the material cost expended during manufacturing.

For example, wireless power transmitter can be sent out in the examination stage using signal strength indicator to calculate wireless power Power transmission efficiency between three coils of emitter and the coil of wireless power receiver.

In another embodiment, wireless power transmitter can calculate the coupled systemes between transmitting coil and receiving coil Number, to select the coil of the wireless power transmitter with high coupling coefficient.

In another embodiment, wireless power transmitter can calculate Q factor to identify the radio with high Q factor The coil of power transmitter, so as to control the switch 3830 of driving circuit 3810 to be connected to.

Figure 39 is opened for the multiple of one of multiple coils that are connected to driving circuit described according to a kind of embodiment The figure of pass.

With reference to Figure 39, power transmission unit can include the driving circuit 3910 of conversion input voltage, by driving circuit 3910 are connected to the switch 3920 of LC resonance circuit, multiple transmitting coils 3930, are connected in series to wireless power transmitter The control unit 3950 of one capacitor 3940 of multiple coils and the cut-off/close of control switch 3920.

Control unit 3950 can identify the coil of wireless power receiver and multiple coils of wireless power transmitter The coil of the wireless power transmitter with highest power transmission efficiency in 3930, and control can be performed to turn off the switch The coil of the wireless power transmitter identified is connected to driving circuit 3910.

Figure 40 is the operational flowchart of wireless power transmitter according to a kind of embodiment.

With reference to Figure 40, wireless power transmitter according to embodiment can transmit low electric power to wireless power receiver (S4001).Wireless power transmitter can transmit low electric power with semi-bridge method to wireless power receiver.Semi-bridge method can be by Referred to as low speed charge mode.

Wireless power transmitter may determine whether to perform rapid charge pattern (S4001).Wireless power transmitter can be with Based on determining whether to transmit wireless power under rapid charge pattern from the specific cluster that wireless power receiver receives.

In the case of transmitting wireless power under rapid charge pattern, wireless power transmitter can suspend FOD operations (S4003)。

Wireless power transmitter under rapid charge pattern by the situation of wireless power transmission to wireless power receiver Under, it may occur however that the loss of wireless power.At this point, wireless power transmitter can be received by using from wireless power receiver To reception electric power be grouped to check the loss of wireless power.Wireless power transmitter can determine inspection based on electric power grouping is received Measure FO.Therefore, wireless power transmitter can stop wireless power transmission to wireless power receiver.That is, By in the case of wireless power transmission to wireless power receiver under rapid charge pattern, wireless power transmitter can be due to hair FO detections operate and stop the transmission of wireless power caused by raw power consumption.

Wireless power transmitter can stop FOD operations, and at the same time can pass high electric power under rapid charge pattern Transport to wireless power receiver (S4004).

Wireless power transmitter and its operating method according to embodiment can stop FOD behaviour in high-speed radio charging Make up to the predetermined time, to prevent the stopping of wireless power transmission, so as to minimize the charging time.

Wireless power transmitter and its operating method according to embodiment can stop FOD behaviour in high-speed radio charging Make up to the predetermined time, to prevent the stopping of wireless power transmission, so as to stably generate AC signals.Further, since high-speed radio Charging is changed, so preventing the disconnection of charging, and transmits wireless power in wide charged area.

Wireless power transmitter and its operating method according to embodiment can stop FOD behaviour in high-speed radio charging Make up to the predetermined time, to prevent the stopping of wireless power transmission, so as to control electric power.

Figure 41 is the figure for the structure for showing charge mode grouping according to embodiment.

As shown in figure 41, the message field of charge mode grouping can include charge mode 4131 and external analyte detection operates Dwell time 4132.Herein, external analyte detection operation dwell time 4132 can represent to receive pair when wireless power transmitter During the charge mode grouping answered, wireless power transmitter starts rapid charge and then does not perform external analyte detection within a certain period of time The time of operation.In more detail, when wireless power transmitter receives the correspondence charge mode grouping with certain time, nothing Line power transmitter can ignore the reception electric power grouping received from wireless power receiver and reach a period of time, and passing through After a period of time, wireless power transmitter can perform external analyte detection operation based on electric power grouping is received.

External analyte detection operation dwell time 4132 can receive electric power to be grouped the time being received three times.Therefore, outside The period for receiving and receiving electric power grouping can be more than by carrying out analyte detection operation dwell time 4132.For example, when receiving electric power point When the unit of group is 1.5 seconds, the value of external analyte detection operation dwell time 4132 can be set to 1.5 seconds to 5 seconds, and nothing Line power transmitter can be changed to rapid charge pattern, then can ignore and receive electric power grouping up to 5 seconds.In addition, with outer Carry out the increase of the value of analyte detection operation dwell time 4132, wireless power transmitter can represent be changed to rapid charge pattern The reception electric power grouping ignored time received later can increase.

For example, as shown in reference numeral 4150, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b0 can be used for setting external analyte detection operation dwell time 4132.In this case, exist In the range of message value, 0x00 to 0x7f may be used as being changed to the first charge mode (that is, from rapid charge pattern for sending out Be changed to general low power charge pattern) request value, and 0x80 may be used as being changed to second for sending out to 0xff The value of the request of charge mode (that is, being changed to rapid charge pattern from general low power charge pattern).Such example is only One example, and the configuration and definition of message field can carry out various change according to the realization method of those skilled in the art Become.

Figure 42 shows the external analyte detection operation of wireless power transmitter according to embodiment.

With reference to Figure 42, wireless power transmitter 4201 can be by wireless power transmission to wireless power receiver 4202. In this case, metal object can be arranged between wireless power transmitter 4201 and wireless power receiver 4202.Due to The metal object, it may occur that power consumption P_LOSS.Power consumption P_LOSSCan be transmission electric power P_PTWith receiving electric power P_PRIt Between difference.

Transmit electric power P_PTIt can be the wireless power transmitter 4201 when the transmission wireless power of wireless power transmitter 4201 Input electric power P_INWith transmission loss electric power P_PTLOSSBetween difference.Receive electric power P_PRCan work as wireless power receiver 4202 The output power P of wireless power receiver 4202 when receiving wireless power_OUTWith receiving loss electric power P_PRLOSSBetween difference.

Wireless power receiver 4202 can will include receiving electric power P_PRReception electric power grouping be sent to wireless power hair Emitter 4201.As loss electric power P_PRLOSSDuring more than predetermined threshold, wireless power transmitter 4201 can be based on connecing from wireless power One or more reception electric power that device 4202 receives are received to be grouped to determine to connect with wireless power in wireless power transmitter 4201 There are exotics between receipts device 4202.Wireless power transmitter 4201 can stop the transmission of wireless power, to prevent by external Excess temperature caused by object.

Figure 43 shows the reception electricity that wireless power transmitter according to embodiment is received from wireless power receiver Power is grouped and the respond packet to receiving electric power grouping.

Wireless power transmitter can be grouped to determine in nothing based on the reception electric power received from wireless power receiver It whether there is exotic between line power transmitter and wireless power receiver.When what is included based on reception electric power grouping 4301 When receiving the power consumption of power value less than predetermined threshold, wireless power transmitter can determine that exotic is not present.At this point, nothing Respond packet 4303 including verification value ACK can be transmitted to wireless power receiver by line power transmitter.That is, with The information that exotic is not detected in instruction can be included by receiving the corresponding response signal of electric power grouping.

When the loss electric power of reception power value included based on reception electric power grouping 4301 are more than predetermined threshold, wirelessly Power transmitter can determine that there are exotics.At this point, the response that wireless power transmitter can will include non-acknowledgement value NACK Grouping 4303 is transmitted to wireless power receiver.The predetermined response time is have passed through after receiving and receiving electric power grouping 4301 T_responseWhen, respond packet 4303 can be transmitted to wireless power receiver by wireless power transmitter.

Wireless power receiver according to embodiment can be by the grouping including external analyte detection dwell time or packet It includes the grouping that external analyte detection stops asking and is sent to wireless power transmitter.In wireless power transmitter according to embodiment In the case of receiving the reception electric power grouping including external analyte detection dwell time, stop when receiving including external analyte detection When time or external analyte detection stop the grouping of request, no matter receiving the reception power value that electric power grouping 4301 includes is What, the respond packet 4303 including verification value ACK can be transmitted to wireless power receiver up to one section by wireless power transmitter Time.For example, when external analyte detection dwell time value is 5, the reception power value that electric power grouping 4303 includes no matter is received Why, the respond packet 4303 including verification value ACK can be transmitted to wireless power receiver up to 5 by wireless power transmitter Second.Therefore, when the change due to charge mode changes charged state, it is therefore prevented that by interim external analyte detection operating mistake The stopping of caused power transmission.

According to another embodiment, when receiving the grouping including external analyte detection dwell time value, wireless power hair Emitter can receive electric power grouping 4301 up to a period of time based on external analyte detection dwell time value to ignore.It that is, can To stop with receiving the corresponding response signal of electric power grouping up to external analyte detection dwell time.According to another embodiment, when connecing When receiving the grouping including external analyte detection dwell time value, wireless power transmitter can be based on external analyte detection dwell time ND responses are transmitted to wireless power receiver up to a period of time by value.That is, response corresponding with receiving electric power grouping is believed Number it can include allowing to ignore the information for receiving electric power grouping.

Figure 44 is the signal shown between wireless power receiver according to a kind of embodiment and wireless power transmitter The flow chart of stream.

With reference to Figure 44, wireless power transmitter 4410 can be in the power transmission stage according to general low power charge pattern By low power transmission to wireless power receiver 4420.At this point, wireless power transmitter 4410 can be from wireless power receiver 4420 receive the respond packet (S4401) of request rapid charge.When the respond packet can include stopping about external analyte detection Between information.

Wireless power transmitter 4410 can be grouped under rapid charge pattern according to response to wireless power receiver The 4420 high electric power (S4402) of transmission.Wireless power transmitter 4410 can operate under rapid charge pattern, and at the same time can be with The external analyte detection dwell time included based on respond packet reaches a period of time to stop external analyte detection operation.

It is reached for example, wireless power transmitter 4410 can stop external analyte detection operation based on electric power grouping RPP is received External analyte detection dwell time (S4403).Wireless power transmitter 4410, which can receive, receives electric power grouping up to external analyte detection Dwell time (S4404 and S4406).At this point, wireless power transmitter 4410 can transmit ACK in response to receiving electric power grouping Or ND (S4405 and S4407).As an alternative, wireless power transmitter 4410 can be not responding to.

When have passed through external analyte detection dwell time, wireless power transmitter 4410 can be based on receiving electric power grouping (S4409 and S4410) operates (S4408) to restart external analyte detection.Therefore, when the change due to charge mode changes During charge condition, it is therefore prevented that the stopping of power transmission as caused by interim external analyte detection operating mistake.

Figure 45 is the flow chart for the operation for showing wireless power transmitter according to embodiment.

With reference to Figure 45, wireless power transmitter can be according to low-speed mode by low power transmission to wireless power receiver. At this point, wireless power transmitter can receive the grouping (S4501) of request rapid charge from wireless power receiver.

Wireless power transmitter can connect according to being grouped under rapid charge pattern for rapid charge of request to wireless power It receives device and transmits high wireless power (S4502).The grouping of request rapid charge according to embodiment can include external analyte detection Dwell time.

Wireless power transmitter can suspend external analyte detection behaviour based on the grouping including external analyte detection dwell time Make and ask rapid charge (S4503).Wireless power transmitter can transmit wireless power based on rapid charge pattern, and And external analyte detection operation can be stopped simultaneously.

Wireless power transmitter can determine It is no to be equal to or more than external analyte detection dwell time (S4504).For example, external analyte detection dwell time can be five seconds.At this point, Wireless power transmitter can be since the pause exotic at the time of receiving the grouping including external analyte detection dwell time Detection operation was up to five seconds.For example, wireless power transmitter can message be transmitted to from wireless power receiver in response by ACK The reception electric power grouping received.As an alternative, wireless power transmitter can be ignored connects from what wireless power receiver received Electric power grouping is received up to 5 seconds or can message is transmitted in response by ND.

Stop when time after wireless power is transmitted under rapid charge pattern equal to or more than external analyte detection Only during the time, wireless power transmitter can restart external analyte detection operation (S4505).In other words, when from receiving point When have passed through external analyte detection dwell time from the time of group, wireless power transmitter can be based on receiving electric power grouping come again Start external analyte detection operation.Therefore, when the change due to charge mode changes charged state, it is therefore prevented that by interim outer The stopping of power transmission caused by carrying out analyte detection operating mistake.

Figure 46 is the figure for the structure for showing to be grouped according to the charge mode of another embodiment.

As shown in figure 46, the message field of charge mode grouping can include charge mode 4631 and receive electric power weighted value 4632。

Herein, it when wireless power transmitter is received from wireless power receiver receives electric power grouping, receives electric power and adds Weights 4632 can represent to be reflected in the particular value received in power value.Reception electric power grouping can be included in by receiving power value In.

In more detail, wireless power transmitter can receive the charge mode for including scheduled reception electric power weighted value 4632 Grouping, and receive electric power weighted value 4632 and the reception electricity under rapid charge pattern under general low power charge pattern It is had differences between power weighted value 4632.

For example, receiving electric power weighted value 4632 and under rapid charge pattern under general low power charge pattern In the case of being had differences between reception electric power weighted value 4632, when charge mode is changed, connecing for electric power grouping is being received Receiving can have differences in the reception electric power weighted value reflected in power value, and therefore, wireless power transmitter can be in both of which Under with the different horizontal or different stages control the external analyte detection to operate.

In more detail, it can be 1 or larger value to receive electric power weighted value 4632.For example, when receiving electric power weighted value 4632 when being 1, and wireless power transmitter can control exotic as former state by using the reception power value for receiving electric power grouping Detection operation.

When receiving electric power weighted value 4632 more than 1, wireless power transmitter can will receive the reception electricity of electric power grouping Force value is generated as the reception power value with higher level, and can be by using the reception electric power for wherein reflecting weighted value Value operates to perform external analyte detection.In this case, wireless power transmitter can be according to more than by wireless power receiver The reception power value of reception power value that is an actually-received performs the detection of exotic.For example, in charge mode from low electric power In the case of being changed to high electric power, wireless power transmitter can transmit high electric power or when receiving low electric power, radio Power receiver can be by received power transmission to transmitter.At this point, the power consumption as caused by operating external analyte detection Calculated it is very big in the case of may occur error, and can be by the way that weighted value to be reflected in connecing of receiving that electric power is grouped Receive the error that power consumption calculating is corrected in electric power.Therefore, when the change due to charge mode changes charged state, Prevent the stopping of the power transmission as caused by interim external analyte detection operating mistake.

It receives electric power weighted value 4632 and is not limited to the example, and depending on situation, it can be based on power transmission situation Environment is arranged differently than.

For example, as shown in reference numeral 4650, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b0 can be used for setting and receive electric power weighted value 4632.In this case, in message value In range, 0x00 to 0x7f may be used as being changed to the first charge mode (that is, being changed to one from rapid charge pattern for sending out As low power charge pattern) request value, and 0x80 to 0xff may be used as being changed to the second charge mode for sending out The value of the request of (that is, being changed to rapid charge pattern from general low power charge pattern).Such example is only an example, And the configuration and definition of message field can carry out various changes according to the realization method of those skilled in the art.

Figure 47 is the signal stream shown between wireless power receiver according to embodiment and wireless power transmitter Flow chart.

With reference to Figure 47, wireless power transmitter 4710 can be based on receiving electric power grouping under general low power charge pattern RPP operates (S4701) to perform external analyte detection.Wireless power transmitter 4710 can be received from wireless power receiver 4720 At least one reception electric power grouping RPP (S4702).Wireless power transmitter 4710 can be based on by wireless power receiver 4720 Determine that there are exotics based at least one reception electric power reception power value for receiving of grouping.

Wireless power transmitter 4710 can receive under general low power charge pattern from wireless power receiver 4720 Send out the charge mode grouping for the request for being changed to rapid charge pattern.Charge mode grouping according to embodiment can include Receive electric power weighted value.When wireless power transmitter 4710 receives charge mode grouping, wireless power transmitter 4710 can To suspend FOD operations (S4703).

Herein, it when wireless power transmitter 4710 is received from wireless power receiver 4720 receives electric power grouping, connects Receiving electric power weighted value can represent to be reflected in the particular value received in the reception power value that electric power grouping includes.In more detail, Wireless power transmitter 4710 can be received including the scheduled charge mode grouping for receiving electric power weighted value, and general low There may be differences between the reception electric power weighted value under reception electric power weighted value and rapid charge pattern under power charge pattern It is different.

Wireless power transmitter 4710 can perform external quality testing based on receiving electric power weighted value and receiving electric power grouping Survey operation (S4705).For example, the reception electric power weighted value under general low power charge pattern and connecing under rapid charge pattern In the case of being had differences between receipts electric power weighted value, when charge mode changes, in the reception power value for receiving electric power grouping Can be had differences in the reception electric power weighted value of middle reflection, therefore, wireless power transmitter 4710 can in both modes with The different horizontal or different stages controls external analyte detection to operate.

In more detail, it can be the value more than or equal to 0 and less than or equal to 1 to receive electric power weighted value.For example, when receiving electric power When weighted value is 1, wireless power transmitter 4710 can as former state be controlled by using the reception power value for receiving electric power grouping External analyte detection operation.When receiving electric power weighted value more than 1, wireless power transmitter 4710 can will receive electric power grouping It receives power value and is generated as the reception power value with higher level, and can be by using wherein reflecting connecing for weighted value Power value is received to perform external analyte detection operation.In this case, wireless power transmitter 4710 can be according to more than by wireless The reception power value of reception power value that power receiver 4720 is an actually-received performs the detection of exotic.

For example, in charge mode from the case that low electric power is changed to high electric power, wireless power transmitter can transmit height Electric power or when receiving low electric power, wireless power receiver can be by received power transmission to transmitter.This When, the power consumption as caused by operating external analyte detection calculated it is very big in the case of may occur error, and can be with By the way that weighted value to be reflected in the error that power consumption is corrected in the reception electric power for receiving electric power grouping and is calculated.Therefore, when by When the change of charge mode changes charged state, it is therefore prevented that the electric power as caused by interim external analyte detection operating mistake passes Defeated stopping.

When it is 0 to receive electric power weighted value, wireless power transmitter 4710 can determine to receive all connecing of electric power grouping It is 0 to receive power value, to determine that there are exotics.It receives electric power weighted value and is not limited to the example, and depending on situation, Ke Yishi Value more than 1 or less than 0.

Figure 48 is the flow chart for the operation for showing the wireless power transmitter according to another embodiment.

With reference to Figure 48, wireless power transmitter can receive under general low power charge pattern from wireless power receiver Ask the charge mode grouping (S4801) of rapid charge.

Charge mode grouping according to embodiment can include receiving electric power weighted value.When wireless power transmitter receives When being grouped to charge mode, wireless power transmitter can suspend FOD operations.

Herein, it when wireless power transmitter is received from wireless power receiver receives electric power grouping, receives electric power and adds Weights, which can represent to be reflected in, receives the particular value received in power value that electric power grouping includes.In more detail, wireless power Transmitter can be received including the scheduled charge mode grouping for receiving electric power weighted value, and in general low power charge pattern Under reception electric power weighted value and rapid charge pattern under reception electric power weighted value between have differences.

Wireless power transmitter can be grouped under rapid charge pattern based on charge mode and perform charging (S4802).Example Such as, wireless power transmitter can be under rapid charge pattern by high power transmission to wireless power receiver.Wireless power is sent out Emitter can receive electric power grouping RPP (S4803) from wireless power receiver.Wireless power transmitter can be based on receiving Electric power weighted value and reception electric power are grouped the corrected value (S4804) to generate the reception power value for receiving electric power grouping.

Wireless power transmitter can perform external analyte detection operation (S4805) based on corrected reception power value. It can be 1 or larger value to receive electric power weighted value.For example, when it is 1 to receive electric power weighted value, wireless power transmitter can be with External analyte detection is controlled to operate as former state by using the reception power value for receiving electric power grouping.It is more than when receiving electric power weighted value When 1, the reception power value for receiving electric power grouping can be generated as the reception electric power with higher level by wireless power transmitter Value, and external analyte detection operation can be performed by using the reception power value for wherein reflecting weighted value.In the situation Under, wireless power transmitter can be according to more than the reception electric power of reception power value being an actually-received by wireless power receiver Value performs the detection of exotic.

The electric power weighted value that receives under general low power charge pattern is weighted with the reception electric power under rapid charge pattern In the case of being had differences between value, when charge mode is changed, reflect in the reception power value for receiving electric power grouping Receiving can have differences in electric power weighted value, therefore, wireless power transmitter can in both modes with different levels or The different stages controls external analyte detection to operate.

For example, in charge mode from the case that low electric power is changed to high electric power, wireless power transmitter can transmit height Electric power or receive low electric power it is low when, wireless power receiver can be by received power transmission to transmitter.This When, the power consumption as caused by operating external analyte detection calculated it is very big in the case of may occur error, and can be with By the way that weighted value to be reflected in the error that power consumption is corrected in the reception electric power for receiving electric power grouping and is calculated.Therefore, when by When the change of charge mode changes charged state, it is therefore prevented that the electric power as caused by interim external analyte detection operating mistake passes Defeated stopping.

Figure 49 is the figure for the structure for showing to be grouped according to the charge mode of another embodiment.

As shown in figure 49, the message field of charge mode grouping can include charge mode 4931, reception electric power weighting is answered With the time 4932 and receive electric power weighted value 4933.Receiving electric power weighting application time 4932 can represent to emit from wireless power Device receive charge mode grouping time start until receive electric power weighted value 4933 application terminate until spent when Between.

It can receive electric power to be grouped the time being received three times to receive electric power weighting application time 4932.Therefore, it receives Electric power weighting application time 4932 can be more than the period for receiving and receiving electric power grouping.If for example, receive electric power grouping As unit of 1.5 seconds, then the value for receiving electric power weighting application time 4932 can be set to 1.5 seconds to 5 seconds, and radio Power transmitter can be changed to rapid charge pattern, then can ignore and receive electric power grouping up to 5 seconds.In addition, with being received To the increase of the value of electric power weighting application time 4932, wireless power transmitter, which can represent to have ignored, is being changed to rapid charge What is received after pattern receives the increase of the time of electric power grouping.

Herein, it when wireless power transmitter is received from wireless power receiver receives electric power grouping, receives electric power and adds Weights 4933, which can represent to be reflected in, receives the particular value received in power value that electric power grouping includes.

In more detail, wireless power transmitter can receive the charge mode for including scheduled reception electric power weighted value 4933 Grouping, and the reception electric power weighted value 4933 under general low power charge pattern under rapid charge pattern with receiving electric power There may be differences between weighted value 4933.

For example, receive electric power weighted value 4933 and the reception under rapid charge pattern under general low power charge pattern In the case of being had differences between electric power weighted value 4933, when charge mode changes, in the reception electric power for receiving electric power grouping It can be had differences in the reception electric power weighted value reflected in value, therefore, wireless power transmitter can be in both modes with not The same horizontal or different stage controls external analyte detection to operate.

In more detail, it can be 1 or larger value to receive electric power weighted value 4933.For example, when receiving electric power weighted value 4933 when being 1, and wireless power transmitter can control exotic as former state by using the reception power value for receiving electric power grouping Detection operation.

When receiving electric power weighted value 4933 more than 1, wireless power transmitter can will receive the reception electricity of electric power grouping Force value is generated as the reception power value with level of power, and can be by using the reception electric power for wherein reflecting weighted value Value operates to perform external analyte detection.In this case, wireless power transmitter can be according to more than by wireless power receiver The reception power value of reception power value that is an actually-received performs the detection of exotic.

Therefore, when the change due to charge mode changes charged state, it is therefore prevented that grasped by interim external analyte detection The stopping of power transmission caused by making mistake.

For example, as shown in reference numeral 4950, the b7 of the MSB as message field can will be changed to for identifying The position of charge mode.Other b6 to b0 can be used for setting and receive electric power weighted value 4933.In this case, in message value In range, 0x00 to 0x7f may be used as being changed to the first charge mode (that is, being changed to one from rapid charge pattern for sending out As low power charge pattern) request value, and 0x80 to 0xff may be used as being changed to the second charge mode for sending out The value of the request of (that is, being changed to rapid charge pattern from general low power charge pattern).Such example is only an example, And the configuration and definition of message field can carry out various changes according to the realization method of those skilled in the art.

Figure 50 is the signal between the wireless power receiver and wireless power transmitter shown according to another embodiment The flow chart of stream.

With reference to Figure 50, wireless power transmitter 5010 can be under general low power charge pattern from wireless power receiver 5020 receive charge mode grouping, and charge mode grouping sends out the request (S5001) for being changed to rapid charge pattern.Radio Power transmitter 5010 can start rapid charge (S5002) according to charge mode grouping.

It can include receiving electric power weighted value according to the grouping of the charge mode of another embodiment and application receives electric power and adds The time of weights.When wireless power transmitter 5010 receives charge mode grouping, wireless power transmitter 5010 can be temporary Stop FOD operations, and external analyte detection operation (S5003) can be performed based on receiving electric power weighted value and receiving electric power.

Herein, when wireless power transmitter 5010 is received from wireless power receiver receives electric power grouping, electricity is received Power weighted value, which can represent to be reflected in, receives the particular value received in power value that electric power grouping includes.In more detail, wirelessly Power transmitter 5010 can be received including the scheduled charge mode grouping for receiving electric power weighted value, and in general low electric power There may be difference between the reception electric power weighted value under reception electric power weighted value and rapid charge pattern under charge mode.

The electric power weighted value that receives under general low power charge pattern is weighted with the reception electric power under rapid charge pattern In the case of being had differences between value, when charge mode changes, what is reflected in the reception power value for receiving electric power grouping connects Receiving can have differences in electric power weighted value, and therefore, wireless power transmitter 5010 can be in both modes with different levels Or the different stages controls the external analyte detection to operate.

In more detail, it can be the value more than or equal to 0 and less than or equal to 1 to receive electric power weighted value.For example, when receiving electric power When weighted value is 1, wireless power transmitter 5010 can as former state be controlled by using the reception power value for receiving electric power grouping External analyte detection operation.When receiving electric power weighted value more than 1, wireless power transmitter 5010 can will receive electric power grouping It receives power value and is generated as the reception power value with higher level, and can be by using wherein reflecting connecing for weighted value Power value is received to perform external analyte detection operation.In this case, wireless power transmitter 5010 can be according to more than by wireless The reception power value of reception power value that power receiver 5020 is an actually-received performs the detection of exotic.

When wireless power transmitter 5010 receives the reception electric power grouping for receiving electric power weighted value application time When (S5004 and S5006), wireless power transmitter 5010 can transmit corresponding with receiving electric power grouping (S5004 and S5006) Acknowledgement character response signal (S5005 and S5007).

If from receive charge mode grouping at the time of have passed through receive electric power weighted value application time, radio Power transmitter 5010 can be held based on the reception power value of reception electric power grouping received from wireless power receiver 5020 The external analyte detection operation (S5008) of row.That is, wireless power transmitter 5010 can be based on from wireless power receiver The 5020 reception power values of reception electric power grouping (S5009 and S5010) received operate to perform external analyte detection.Therefore, When changing charge condition due to change charge mode, it is therefore prevented that the electric power as caused by interim external analyte detection operating mistake The stopping of transmission.

With reference to Figure 51, according to the wireless power transmitter of another embodiment can under general low power charge pattern from Wireless power receiver receives the charge mode grouping (S5101) of request rapid charge.

Charge mode grouping according to one embodiment can include receiving electric power weighted value and employing wireless electric power adds The time of weights.When wireless power transmitter receives charge mode grouping, wireless power transmitter can suspend FOD behaviour Make.

Herein, receiving electric power weighted value can represent to be reflected in the spy received in the reception power value that electric power grouping includes Definite value.In more detail, wireless power transmitter can be received including the scheduled charge mode grouping for receiving electric power weighted value, and And under general low power charge pattern receive electric power weighted value and the reception electric power weighted value under rapid charge pattern it Between have differences.

Wireless power transmitter can perform the charging (S5102) under rapid charge pattern based on charge mode grouping. For example, wireless power transmitter can be under rapid charge pattern by high power transmission to wireless power receiver.Wireless power Transmitter can receive electric power grouping RPP (S5103) from wireless power receiver.Wireless power transmitter can be based on connecing It receives electric power weighted value and receives electric power grouping to generate the corrected value (S5104) for the reception power value for receiving electric power grouping.

Wireless power transmitter can perform external analyte detection operation (S5105) based on corrected reception power value. It can be 1 or larger value to receive electric power weighted value.For example, when it is 1 to receive electric power weighted value, wireless power transmitter can be with External analyte detection is controlled to operate as former state by using the reception power value for receiving electric power grouping.It is more than when receiving electric power weighted value When 1, the reception power value for receiving electric power grouping can be generated as the reception electric power with higher level by wireless power transmitter Value, and external analyte detection operation can be performed by using the reception power value for wherein reflecting weighted value.In the situation Under, wireless power transmitter can be according to more than the reception electric power of reception power value being an actually-received by wireless power receiver Value performs the detection of exotic.

For example, receive electric power weighted value and the reception electric power under rapid charge pattern under general low power charge pattern In the case of being had differences between weighted value, when charge mode changes, reflect in the reception power value for receiving electric power grouping Reception electric power weighted value in can have differences, therefore wireless power transmitter can in both modes with different levels or The different stages controls external analyte detection to operate.

Wireless power transmitter can determine whether elapsed time is equal to or more than receive after rapid charge is started Electric power weighted value application time (S5106).When from receive charge mode grouping at the time of have passed through receive electric power weighted value During application time, wireless power transmitter can be based on the reception electricity for receiving electric power grouping received from wireless power receiver Force value operates (S5107) to perform external analyte detection.That is, wireless power transmitter can be based on receiving from wireless power The reception power value of reception electric power grouping that device receives operates to perform external analyte detection.

Wireless power transmitter and its operating method according to embodiment can stop FOD behaviour in high-speed radio charging Make, up to the predetermined time, to prevent the stopping of wireless power transmission, thus steadily to transmit wireless power.

It can be applied in high-speed radio charging according to the wireless power transmitter of another embodiment and its operating method The weighted value of the reception power value of electric power grouping is received, is operated with performing external analyte detection, so as to prevent wireless power transmission Stop and steadily transmit wireless power.

It can be applied in high-speed radio charging according to the wireless power transmitter of another embodiment and its operating method The weighted value of the reception power value of electric power grouping is received up to the predetermined time, it is wireless so as to prevent to perform external analyte detection operation The stopping of power transmission and steadily transmit wireless power.

Wireless power transmitter and its operating method according to embodiment can be used in disclosed wireless power biography Part device defined in defeated standard, and therefore the wireless power transmitter and its operating method can be based on it is predefined Standard.

Wireless power transmitter and its effect of operating method according to embodiment is not limited to above-mentioned, but this field skill Art personnel the other purposes being not described herein will be expressly understood from the following description.

According to the program that the method for the above embodiment is implemented as performing in a computer, and can be by It is stored in computer readable recording medium storing program for performing.The example of computer readable recording medium storing program for performing includes read-only memory (ROM), deposits at random Access to memory (RAM), CD-ROM, tape, floppy disk and optical data storage device and carrier wave are (for example, the number for passing through internet According to transmission).

Computer readable recording medium storing program for performing can be distributed in the computer system being connected to each other by network, and computer Readable code can store and execute in a distributed way.In addition, it is used to implement the function program of the above method, code and generation Code section can be readily concluded that by the programmer of this field.

It will be apparent to those skilled in the art that in the situation for the spirit and essential characteristics for not departing from the present invention Under, the present invention can be illustrated with another particular form.

It will be obvious to a person skilled in the art that in the situation for not departing from spirit or scope in the present disclosure Under, it can be with various modifications and variations have been made in the present invention.Therefore, as long as the modifications and variations of disclosure fall into appended right and want Ask and its equivalents in the range of, then the invention is intended to cover these modifications and variations.

Claims

1. a kind of wireless power transmitter, including：

Power transmission unit including transmitting coil；

Power conversion unit changes the power strength applied from outside；And

Control unit controls the charge mode and charge capacity of wireless power reception device；

Wherein, the charge mode includes the first charge mode and the second charge mode,

Wherein, described control unit is configured to：

It is grouped to perform control to the charge mode based on the charge mode received from the wireless power reception device Second charge mode is changed to from first charge mode,

Be grouped based on the reception electric power that is received from the wireless power reception device control external analyte detection operate and

When the charge mode is changed to second charge mode from first charge mode, based on the reception electric power It is grouped to change the method for controlling the external analyte detection operation, and

Wherein, the charge mode grouping includes the information about external analyte detection operation dwell time.

2. wireless power transmitter according to claim 1, wherein, described control unit is based on the reception electric power grouping To stop the control to the external analyte detection operation up to the external analyte detection operation dwell time.

3. wireless power transmitter according to claim 1, wherein, described control unit stops transmission and receives electricity with described Power is grouped corresponding response signal up to the external analyte detection operation dwell time.

4. wireless power transmitter according to claim 1, wherein, when have passed through the external analyte detection operation stopping Between when, the method is changed to based on the charge mode is being changed to from first charge mode by described control unit The reception electric power before second charge mode is grouped the method to control the external analyte detection operation.

5. wireless power transmitter according to claim 1, wherein, the external analyte detection operation dwell time be so that The electric power that receives is grouped the time that can be received three times.

6. wireless power transmitter according to claim 1, wherein, the charge mode grouping is included about charge mode Change the information of operating frequency.

7. a kind of wireless power transmitter, including：

Power transmission unit including transmitting coil；

Power conversion unit changes the power strength applied from outside；And

Wherein, described control unit is configured to：

It is grouped that external analyte detection is controlled to operate based on the reception electric power received from the wireless power reception device,

The charge mode grouping is included about the information for receiving electric power weighted value.

8. wireless power transmitter according to claim 7, wherein, described control unit is by the way that the reception electric power is added Weights, which are reflected in, controls the external analyte detection operation in the reception electric power grouping.

9. wireless power transmitter according to claim 7, wherein, the charge mode grouping is included about reception electric power The information of weighted value application time.

10. wireless power transmitter according to claim 9, wherein, described control unit is by by the reception electric power Weighted value is reflected in the reception electric power grouping and controls the external quality testing up to the reception electric power weighted value application time Survey operation.

11. wireless power transmitter according to claim 9, wherein, it have passed through the reception electric power weighted value application During the time, described control unit is come in the case where the reception electric power weighted value not being reflected in the reception electric power grouping Control the external analyte detection operation.

12. wireless power transmitter according to claim 7, wherein, the charge mode grouping is included about charging mould Formula changes the information of operating frequency.

13. a kind of be wirelessly transmitted electric power to the method for wireless power receiver, the method includes：

The charge mode and charge capacity of wireless power reception device are controlled, the charge mode includes the first charge mode and the Two charge modes；It is grouped based on the charge mode received from the wireless power reception device and is filled to perform control to by described Power mode is changed to second charge mode from first charge mode；

It is grouped that external analyte detection is controlled to operate based on the reception electric power received from the wireless power reception device；And

14. it according to the method for claim 13, further includes：

Control to the external analyte detection operation is stopped up to the external analyte detection operation based on the reception electric power grouping Dwell time.

15. it according to the method for claim 13, further includes：

Stop transmission and operate dwell time up to the external analyte detection with the corresponding response signal of the reception electric power grouping.

16. it according to the method for claim 13, further includes：

When have passed through the external analyte detection operation dwell time, the method is changed to based on by the charge mode Reception electric power grouping before being changed to second charge mode from first charge mode is described external to control The method of analyte detection operation.

17. a kind of be wirelessly transmitted electric power to the method for wireless power receiver, the wireless power transmission method includes：

The charge mode and charge capacity of wireless power reception device are controlled, the charge mode includes the first charge mode and the Two charge modes；

It is grouped to perform control to the charge mode based on the charge mode received from the wireless power reception device Second charge mode is changed to from first charge mode；

Wherein, the charge mode grouping is included about the information for receiving electric power weighted value.

18. it according to the method for claim 17, further includes：

The external analyte detection is controlled to operate in the reception electric power grouping by the way that the reception electric power weighted value is reflected in.

19. according to the method for claim 17, wherein, the charge mode grouping is included about the reception electric power weighting It is worth the information of application time.

20. it according to the method for claim 19, further includes：

By the way that the reception electric power weighted value is reflected in the reception electric power grouping up to the reception electric power weighted value application Time controls the external analyte detection operation.

21. wireless power transmission method according to claim 19, further includes：

When have passed through the reception electric power weighted value application time, the reception electric power weighted value described connect be not reflected in The external analyte detection operation is controlled in the case of receiving in electric power grouping.