CN110098645A - The open loop tuning methods of electric toothbrush wireless charging system efficiency optimization - Google Patents
The open loop tuning methods of electric toothbrush wireless charging system efficiency optimization Download PDFInfo
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- CN110098645A CN110098645A CN201810088444.3A CN201810088444A CN110098645A CN 110098645 A CN110098645 A CN 110098645A CN 201810088444 A CN201810088444 A CN 201810088444A CN 110098645 A CN110098645 A CN 110098645A
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Classifications
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- H02J5/005—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H02J7/025—
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
Device for charging to one or more electrical equipments.The apparatus may include be configured to be wirelessly coupled to the resonance circuit of one or more electrical equipments, it is configured to that the boost converter of the input voltage of the power amplifier of driving resonance circuit will be converted to from the received system voltage of device, it is configured to the sensing circuit and controller of detection input voltage and associated input current.Controller can be structured as receiving the input voltage detected and the input current detected, the input voltage received and the input current received are compared with the voltage and current information of storage, the difference between received input voltage and predetermined voltage is determined according to the voltage and current information of storage, and controls boost converter and/or gate drivers so that input voltage is adjusted to predetermined voltage according to determining difference.The adjustment can not needed from any feedback of power receiver unit or communication.
Description
Technical field
The application generally relates to the method and system of wireless charging device, more particularly, to for most preferably to fill
Electrical efficiency carries out the method and system of wireless charging to electric toothbrush.
Background technique
Wireless charging is a kind of technology of continuous development, can be come greatly just for millions of electronic equipment charge-carrying belts
Benefit.The wireless charging of electric toothbrush is one of most typical application.Due to waterproofness and electrical security requirement, modern electric tooth
The battery of brush is typically encapsulated within handle inner.Therefore, wireless charging becomes charges most suitable and most convenient side to sealed cell
Formula.
In electric toothbrush wireless charging system, energy is transmitted to from power transmitter by the magnetic coil of a pair of coupling
One or more power receivers, one is arranged in power transmitter and another setting connects in power in the coupling magnetic coil
It receives in device.Charge efficiency is the parameter of most critical in wireless charging, it is the transmitting function of the reception power and transmitter of receiver
The ratio of rate.Energy waste in transmission process will be effectively reduced by improving charge efficiency, and prevent heat electric discharge or overvoltage
Damage charging unit.In addition, the efficiency improved can eliminate unnecessary electromagnetic radiation, the shadow of potential Radiation On Human body is prevented
It rings.
Most of electric toothbrush products are equipped with wireless charging function, such as Philips Sonicare Diamond Clean
Or Oral-B P7000.However, these conventional systems cannot tune transmitter power during the charging process, for example, filling in battery
In the case that full electricity or toothbrush are mobile, charge efficiency is not optimised.
Summary of the invention
The one aspect of the application is related to a kind of device for charging to one or more electrical equipments.The device can be with
Including being configured to be wirelessly coupled to the resonance circuit of one or more electrical equipments, being configured to will be from the received system voltage of device
The boost converter for being converted to the input voltage of the power amplifier of driving resonance circuit, is configured to detection input voltage and correlation
The sensing circuit and controller of the input current of connection.Controller can be structured as receiving the input voltage detected and detection
The input current arrived compares the voltage and current information of the input voltage received and the input current and storage that receive
Compared with determining the difference between received input voltage and predetermined voltage according to the voltage and current information of storage, and control boosting
Input voltage is adjusted to predetermined voltage according to determining difference by converter and/or gate drivers.The adjustment can not need to come
From any feedback of power receiver unit or communication.
The another aspect of the application is related to a kind of method for charging to one or more electrical equipments.The method can
To include by the defeated of the power amplifier for the resonance circuit for being converted into driving described device by the received system voltage of described device
Enter voltage, resonance circuit is wirelessly coupled to one or more electrical equipments, detects input voltage and correlated inputs electric current, will test
To input voltage and the input current that detects be compared with the voltage and current information of storage, according to the voltage of storage and
The difference between input voltage and predetermined voltage that current information recognition detection arrives, and control boost converter and/or grid
Input voltage is adjusted to predetermined voltage according to the difference identified by driver.The adjustment can not need to come from power receiver list
Any feedback or communication of member.
The another aspect of the application is related to the system for charging to one or more electrical equipments.The system can wrap
Include processor.The processor can be structured as comparing the voltage and current information of input voltage and input current and storage
Compared with determining the difference between input voltage and predetermined voltage according to the voltage and current information of storage, and control boost converter
Or input voltage is adjusted to predetermined voltage by least one of gate drivers.The adjustment can not need to come from power receiver
Any feedback of unit or communication.
It should be understood that the comprehensive description of front and it is described in detail below be only it is exemplary and illustrative, be not required
The limitation of the invention of protection.
Brief description
The attached drawing constituted part of this application shows several embodiments, and together with the description for explaining disclosure
Principle.
Fig. 1 is the figure shown with the consistent wireless charging system of the exemplary embodiment of the application.
Fig. 2 is to show to show with the wireless charging system of the consistent transmitter of the exemplary embodiment of the application and receiver
It is intended to.
Fig. 3 is the schematic diagram according to the basic module of the resonance circuit or lc circuit of the exemplary embodiment of the application.
Figure 41 is the schematic diagram according to the wireless charging transmitter of the exemplary embodiment of the application.
Figure 42 is the block diagram shown with the consistent open-cycle controller of the exemplary embodiment of the application.
Figure 43 is the flow chart for showing the method for charging to electrical equipment of the exemplary embodiment according to the application.
Fig. 5 is the schematic diagram according to the wireless charging receiver of the exemplary embodiment of the application.
It is described in detail
Now with detailed reference to exemplary embodiment, its example is shown in the drawings.It is described below and is related to attached drawing, wherein not
With the same reference numbers in the drawings refer to the same or similar elements, unless otherwise indicated.In example consistent with the present invention
Embodiment described in being described below of property embodiment does not indicate all realizations consistent with the present invention.On the contrary, they are only
It is the example of the consistent system and method for aspect related to the present invention.
Open loop tuning methods and system for optimizing the charge efficiency of electric toothbrush are disclosed.In some embodiments, should
Tuning methods can be based on the real time monitoring to system parameter, therefore system can adaptively optimize toothbrush receiver in difference
The charge efficiency of receiver position and different charging stages.In addition, this method can not needed from toothbrush receiver to transmitter
Feedback information, therefore manufacturing cost can be reduced.Existing charging method and the open loop disclosed herein for rechargeable powered toothbrush
The more detailed comparison of charging method is shown in Table 1.One in above-mentioned technology can be mitigated or overcome in disclosed system and method
A or multiple problems and/or other problems in the prior art.
Table 1:
Fig. 1 is the electrical equipment 110 that can be placed in any position in the cup holder being placed on charging panel 130 120
Graphical representation 100, it is consistent with the exemplary embodiment of the application.Electrical equipment 110 can be electric toothbrush in this example.
One of ordinary skill in the art will be understood that electrical equipment 110 can have the shape different from electric toothbrush shown in FIG. 1,
Size and/or angular ontology.Electrical equipment 110 can also be including other one or more chargeable or replaceable battery classes
The electrical equipment of type.Electrical equipment 110 can be bluetooth equipment, near-field communication equipment or radio frequency identification equipment or any Internet of Things
Equipment.
Cup holder 120 can accommodate more than one electric device 110.Cup holder 120 can be made of glass or plastic material.
In certain embodiments, cup holder can be any shape for allowing to accommodate different electrical equipments.Cup holder 120 can be in the family
Conventional available cup and do not need special designing make with graphical representation 100 shown in work together with wireless charger.For example,
The inner surface of cup, which does not need to have, is fixed on toothbrush the special designing that position is fixed in cup.In Fig. 1, wireless charger
130 are shown as separating from cup holder and different.In certain embodiments, wireless charger 130 can be the pedestal with cup holder 120
Permanently connected round uniformity plate.In certain embodiments, wireless charger 130 can be placed on cup holder 120, and can be with
It moves freely or removes.
As shown in Figure 1, the position of electrical equipment 110 is arbitrary.Electrical equipment 110 may be disposed in cup holder every time
Different location.There is no special mechanical couplings between the bottom of electrical equipment and the pedestal of cup holder.In certain embodiments, electric
Gas equipment 110 and the pedestal of cup holder 120 are at an angle.In certain embodiments, electrical equipment 110 is solid with the angle of 0 to 30 degree
It is scheduled on the pedestal of cup holder.The position of electrical equipment 110 in Fig. 1 is merely illustrative.In certain embodiments, it electrically sets
The distance between standby 110 bottom and wireless charger 130 can be differed from 1cm to 1 0cm.
In certain embodiments, wireless charger 130 may include a sensor for detecting whether there is one or more
A electrical equipment 110 being placed in cup holder 120 for charging.Based on whether sensing electrical equipment 110, wireless charger
130 can be with enabled or disabled charging circuit, to allow effective power consumption.
Fig. 2 shows wireless charging systems 200, consistent with the exemplary embodiment of the application.As shown in Fig. 2, wireless charging
Electric system 200 includes emitter side 202 and receiver-side 204.Emitter side 202 and receiver-side 204 pass through between them
Inductor 206,208 couples.In one exemplary embodiment, emitter side 202 includes voltage input node (+and -) 210,
Boost converter 214, power amplifier 212 and transmitter matching network 216.Receiver-side 204 includes receiver matching network
222, rectifier 226, low-dropout regulator (LDO) 228, charger 232 and battery 230.Emitter side 202, which can be set, is filling
In electric installation or charger.Receiver-side 204 may be provided in consumer-elcetronics devices, such as mobile phone, earphone, wrist-watch, plate electricity
Brain, laptop, electronic-brush, electric toothbrush, automobile or other it is any can be with the consumer-elcetronics devices of wireless charging.Alternatively,
Receiver-side can be set to charge independence device, be connected to consumer-elcetronics devices for user.For example, user can be in Fig. 2 institute
At the battery 230 of display, the rechargeable battery part of a upper electronic equipment is connected.
As shown in Fig. 2, input node receives input voltage vin 210.In certain embodiments, input voltage vin 210
5 volt direct currents provided by USB port are provided.Input node is connected to boost converter 214.Boost converter 214
The a certain range of DC voltage of power amplifier power supply can be supplied to.For example, boost converter 214 can be Vin
210 are converted into 12 volts of boost converter from 5 volts.The output voltage of boost converter 214 is supplied to power amplifier 212
Electricity, to amplify input voltage vin.Power amplifier 212 is connected to TX matching network 216.TX matching network 216 is connected to inductance
Device 206.TX matching network 216 may include one or more capacitors.The capacitor of one or more capacitors can be adjustable
Section.TX matching network 216 and inductor 206 form resonance circuit or lc circuit, and wherein L indicates inductor, and C expression is connected to
Capacitor together.The frequency of lc circuit can be adjusted by adjusting the capacitor of TX matching network 216.Inductor 206 will
Measure the inductor 208 being transferred on receiver-side 204.
In receiver-side 204, it is similar to emitter side 202, inductor 208 is connected to one or more capacitors
RX matching network 222.The capacitor of one or more capacitors is adjustable.Capacitor is for adjusting by inductor 208 and RX
The frequency for the lc circuit that matching network 222 is formed.Therefore, it can be selected by capacitance value and inductance value and/or accurately
Capacitor and inductor determine the resonance frequency of lc circuit.In certain embodiments, transmitter 202 and receiver 204 can be special
It is not configured with 1 megahertz or more of resonance frequency, for example, 6.78 megahertzs.Due to 208 magnetic coupling of TX coil 206 and RX coil,
Oscillation in transmitter 202 can induce electromotive force in receiver 204.
RX matching network 222 is connected to rectifier 226, and it is steady that rectifier 226 by wired connection mode is connected to low voltage difference
Depressor 228.Energy is received by inductor 208 and is transferred to rectifier 226, and alternating current (AC) is converted to direct current by rectifier 226
(DC).Low dropout regulator 228 adjusts the voltage from rectifier 226, transfers it to charger 232 and is output to electricity
Pond 230.In some embodiments it is possible to replace low-dropout regulator using buck converter.
Fig. 3 shows the basic module of resonance circuit or lc circuit, consistent with the exemplary embodiment of the application.Transformation
The voltage input of device is shown as v 310.L is the inductor 320 being connected in series with capacitor C 330.Lc circuit also referred to as tunes
Circuit.Its resonance frequency can be tuned by the inductance of the capacitor and L that tune C.Lc circuit is that storage is shaken with circuit resonant frequencies
The electrical resonator of the energy swung.
Figure 41 shows the emitter side 202 of wireless charging system 200, consistent with the exemplary embodiment of the application.
As shown in figure 41, emitter side 202 is coupled by inductor TX coil 406.In one exemplary embodiment, transmitter
Side 202 includes system voltage input node (+and -) 410, overcurrent protection circuit (OCP) 412, boost converter 414, control
Device (for example, open-cycle controller 416), sensing circuit 418, power amplifier 420 and transmitter with gate drivers 422
Distribution network 424.Some components can be optional such as OCP 412.
As shown in figure 41, input node receives system input voltage vin 410.In certain embodiments, input voltage vin
It is 5 volts.Input voltage vin is connected to overcurrent protection circuit 412, is followed by boost converter 414.Boost converter 414 mentions
Supply a certain range of DC voltage of power amplifier power supply.For example, boost converter 214 can be Vin 210 from 5
Volt is converted into 12 volts of boost converter.Exporting for boost converter 414 is powered to power amplifier 420, power amplification
Device 420 amplifies input voltage vin.Power amplifier 420 is connected to TX matching network 424.
Open-cycle controller 416 is connected to gate drivers 422 and boost converter 414.Open-cycle controller 416 can control
The switch operation of the output voltage and/or gate drivers 422 of boost converter 414.In some embodiments, open-cycle controller
416 can be micro controller unit (MCU).It is the block diagram for showing open-cycle controller 416 with reference to Figure 42, Figure 42, with the application's
Exemplary embodiment is consistent.Open-cycle controller 416 may include processor 4161, memory 4162 and I/O interface 4163,
In it is some can be it is optional.I/O interface 4163 can receive signal and/or instruction, such as the sensing from sensing circuit 418
Signal.I/O interface 4163 can also send the other assemblies of control transmitter side 202, such as boost converter 414, signal and/
Or instruction.Memory 4162 can be the nonvolatile computer readable storage medium of store instruction, when instruction is by processor 4161
When execution, open-cycle controller 416 is made to execute the method 400 described below with reference to Figure 43.In some embodiments, open-cycle controller
416 can store the look-up table described below with reference to table 2 in memory 4162.In some embodiments, power transmitter 202
It may include the memory 440 outside open-cycle controller 416.Similar with memory 4162, memory 440 can store such as
The information of table 2, and/or the instruction for making system 200 execute method disclosed herein.In some alternative embodiments, memory
440 can be set in computer, and on the external equipment of server or system 200, and open-cycle controller 416 can be by wired
Or it is wirelessly connected the information communicated with memory 440 using storage, such as table 2 and instruction.
It looks back and refers to Figure 41, power amplifier 420 may include gate drivers 422 and one or more MOFSET
423.Gate drivers 422 are used as the switch for the MOFSET door 423 that is turned on or off.In some embodiments, MOSFET door 423,
And therefore power amplifier 420, it can periodically be turned on or off to check any power reception device.In order to save function
The very short period can be connected in rate, power amplifier 420 repeatedly, for example, being connected several seconds when non-loaded.When detecting
When one or more electrical equipments, power amplifier 420 can be held on by gate drivers 422.In some other realities
It applies in example, the presence of power receiver can be detected by sensing circuit 418.When receiver-side does not have electrical equipment,
Power amplifier 420 is disconnected using gate drivers 422.Open-cycle controller 416 can control the execution of gate drivers 422 and lead
On/off is opened.
Sensing circuit 418 provides feedback to gate drivers 422 by open-cycle controller 416.Sensing circuit 418 detects
It is no to there are one or more electrical equipments 110 to be placed in the cup holder 120 for charging.Sensing circuit 418 can also be detected from liter
The real-time voltage and electric current of the output of pressure converter 414 simultaneously send such information to open-cycle controller 416.Based on the letter received
Breath, such as presence and/or real-time voltage and the electric current of electrical equipment, open-cycle controller 416 can send signal and/or instruction comes
Control boost converter 414 and/or gate drivers 422.
Reality of the sensing circuit 418 based on the system parameter from sensing circuit 418 to work together with open-cycle controller 416
When monitoring to optimize charge efficiency.For example, open-cycle controller can control boost conversion if not detecting electrical equipment
To reduce no-load power consumption, the power consumption when not having electrical equipment charging in this way can be with for device 414 and/or gate drivers 422
Down to equal to or less than 0.5 watt.
TX matching network 424 is connected to inductor 406.Inductor 406 can also be referred to as TX coil or inductor coil.
TX matching network 424 may include one or more capacitors.The capacitor of one or more capacitors is adjustable.TX matching
Network 424 and inductor 406 form transmitter resonance circuit or lc circuit, and wherein L indicates that inductor, C indicate to connect with inductor
The capacitor connect.The frequency of lc circuit can be adjusted by adjusting the capacitor of TX matching network 424.Inductor 406 is by energy
It is transferred to the inductor of receiver-side.Like this inductor 406 (TX coil) by inductive coupling by power wireless transmission to connecing
Receive device coil.
Figure 43 is the flow chart for showing the method 400 for wireless charging, consistent with the exemplary embodiment of the application.
Method 400 can be executed by the one or more components of system 200, for example, open-cycle controller 416.Method 400 may include more
A step, some of steps can be optionally, for example, step 401.
In step 401, system 200 is initialized.For example, power transmitter 202 is inserted into power supply and receives system input voltage
410。
In step 402, after the system starts, power transmitter 202 can provide input electricity to power amplifier 420
Pressure.Input voltage can be system input voltage 410 or can be boosted by boost converter 414.
In step 403, sensing circuit 418 can detecte current input voltage and electric current.Due to current voltage and electricity
Stream may change with toothbrush position and/or battery charging phase, it is possible to be detected real-time continuously.Sensing circuit
418 are also based on present input voltage and electric current carrys out computing impedance.The current voltage that sensing circuit 418 can also will test
And/or electric current is transferred to another component, for example, open-cycle controller 416.
In step 404, TX system, for example, the processor 4161 of open-cycle controller 416, the current electricity that can be will test
Pressure and electric current are compared with the voltage and current information in the local look-up table described referring to table 2.Table 2, which is shown, to be used for
The exemplary look-up table of the 2w output power transfer unit of electric toothbrush.Number in the table can be determined in advance to optimize and be
The power transfer efficiency of system.Input voltage range is 5-8V shown in top slightly arranges, and input current range is such as left side 0.1-1A
Shown in thick column.It is 100mV that input voltage, which tunes step-length, as shown in the increment by runic input voltage row 100mV.Its in table
His number represents △ V, each corresponds to input voltage and input current.Each △ V can be indicated and the input voltage pair in table
Difference between the current voltage answered and desired voltage.Desired voltage, which can be, passes the power of the system under relevant voltage and electric current
Pass the maximized predetermined voltage of efficiency.For example, system does not need too many charge power, desired voltage when battery is fully charged
It may be lower；When toothbrush is moved to more distant positions, system needs higher charge power, so that desired voltage may be higher.
The current value or voltage value detected by sensing circuit can by approximation or be rounded to 10,100 multiple or other similar be easy to look into
The multiple looked for.
Table 2:
By step 404, processor 4161 can determine storage △ V corresponding with the current voltage and electric current that detect
Value.
In step 405, processor 4161 can determine whether power transmission efficiency maximizes.If identified △ V value
It is 0, then processor 4161 can determine that power transmission efficiency maximizes and can be in step 406 by current voltage and rheometer
Record is in memory 4162.
If identified △ V value is not 0, processor 4161 can determine power transmission efficiency be not maximized and
Input voltage can be tuned based on identified △ V value in step 407.The adjustable boost converter 414 of processor 4161
Output-voltage levels and/or switch gate drivers 422 working condition with realize tuning.Reference table 2 is looked back, for example, such as
The input voltage that fruit detects is 7900mV, and the input current detected is 980mA, then processor 4161 can be by △ V
It is determined as -940mV, it means that current voltage is higher than ideal value 940mV.Therefore, processor 4161 can control boost converter
414 and/or power amplifier 420 input voltage is reduced into 940mV.
After step 406 or step 407, method 400 can continue to step 403 and start next detection.
It may a variety of situations in need that input current and/or voltage be adjusted.In an example during the charging process, electricity
Pond can never electric power start to being completely filled with electricity.Therefore at the end of charging process, battery may not be needed as before that
Power more than sample charges.In another example, the wireless toothbrush being placed on above-mentioned charger may be moved unexpectedly, be led
Cause the change of the relative position between RX coil and TX coil.Therefore, charge efficiency may have occurred variation, allow to need
Adjustment input current and/or voltage are to compensate variation.It, can be according to institute if original power transfer efficiency has maximized
Disclosed method and system adjusts voltage and current, so that power transmission efficiency reaches maximum value.
In some cases, when coil dimension difference is big or two coils not close-coupled (for example, if by moving) each other
When, the mutual inductance between TX and RX coil may reduce, and can have an adverse effect to wireless charging efficiency.Here it is be assorted
Traditional wireless charging toothbrush is generally arranged on the matching pedestal of fixed position the reason of to ensure maximum coil coupling.Phase
Than under, using voltage-regulating system disclosed herein and method, it can be protected wireless charging system 200 when mutual inductance reduces
Hold good charge efficiency.In addition, wireless charging system 200 can provide a big wireless universal charging zone for electric toothbrush
Domain simultaneously allows electric toothbrush freely and has the placement of differing tilt angles.For example, the charging distance between TX coil and RX coil
Can be between 1cm and 10cm, and tilt angle can be 0 to 30 degree.
Fig. 5 shows the receiver-side 204 of wireless charging system 200, consistent with the exemplary embodiment of the application.It connects
Receiving device side 204 includes receiver matching network 510, rectifier 514, low-dropout regulator 518, charger 520 and battery 530.
In certain embodiments, receiver-side includes two-way transient voltage suppressor 512 and the rectifier before rectifier 514
Zener diode 516 later is influenced with protecting system not by transient high voltages.
In receiver-side 204, it is similar to emitter side 202, inductor 508 is connected to one or more capacitors
RX matching network 510.One or more capacitors can have tunable capacitor.Capacitor is for adjusting by inductor 508 and RX
The frequency for the lc circuit that matching network 510 is formed.Inductor 508 can also be referred to as RX coil or receiver coil.RX matching
Network 510 and inductor 508 form receiver resonance circuit.RX matching network 510 is connected to rectifier 514, and rectifier 514 connects
It is connected to low-dropout regulator 518.Energy is received by inductor 508 and is transferred to rectifier 514, and rectifier 514 is by alternating current
(AC) direct current (DC) is converted to.Low-dropout regulator 518 adjusts and is output to the voltage of charger 520, and the charger is by voltage
Battery 530 is output to for charging.As described above, feed circuit is not present in power receiving end, does not need transmitter yet and connect
The interaction between device is received (that is, it is not necessary to which any power receiver unit from one or more electrical equipments is anti-
Feedback or communication), therefore system cost and complexity can be reduced.
Open open loop tuning methods and system for the efficiency optimization in electric toothbrush wireless charging system.Disclosed
Method and system can be detected and be tuned input power based on the system parameter of the real time monitoring of such as input voltage and electric current
To obtain optimal charge efficiency.In addition, this open loop tuning methods cost performance is high and is easily achieved.
The another aspect of the application is related to a kind of non-transitory computer-readable storage medium of store instruction, when being executed,
One or more processors are made to execute this method, it is as described above.Computer readable storage medium may include volatibility or non-
Volatibility, magnetic, semiconductor, tape, optics, movably, immovable or other types of computer-readable storage medium
Matter or computer readable storage devices.For example, computer readable storage medium, which can be, is stored thereon with depositing for computer instruction
Storage unit or memory module, as disclosed.In some embodiments, computer readable storage medium can be to have and deposit
The disk or flash drive of the computer instruction of storage on it.
Those skilled in the art it is further appreciated that with reference to disclosure herein describe various illustrative logical blocks,
Module, circuit and algorithm steps may be implemented as professional electronics hardware, computer software or electronic hardware and computer software
Combination.For example, module/unit can be realized by one or more processors so that one or more processors become one
Or multiple application specific processors execute storage software instruction in a computer-readable storage medium, the specific function of module/unit
Energy.
Flowcharts and block diagrams in the drawings show the possibility of the system and method for multiple embodiments according to the present invention realities
Existing system architecture, function, and operation.In this respect, each of flowchart or block diagram piece can indicate a module, one
A part of program segment or code, wherein module, program segment or code section include for realizing the one of specified logic function
A or multiple executable instructions.It shall also be noted that in some alternative implementations, the function of being marked in block can also occur with
In the different sequence of sequence marked in the figure.For example, two continuous blocks can actually be performed in parallel, and sometimes, it
Can also execute in reverse order, this depend on related function.Each of block diagram and or flow chart piece, and
The combination of block in block diagram and or flow chart, can be by the dedicated hardware based system for executing corresponding function or operation
It realizes, or can be realized by specialized hardware and computer instruction.
As it will appreciated by a person of ordinary skill, embodiments herein can be presented as method, system or computer journey
Sequence product.Therefore, embodiments herein can take complete hardware embodiment, complete software embodiment or integration software and hard
The form of the embodiment of part is for allowing personal module to execute above-mentioned function.In addition, embodiments herein can take packet
It is contained in the tangible and/or non-instantaneous computer readable storage medium of the one or more comprising computer readable program code
The form of computer program product.The common form of non-transitory computer-readable storage medium includes, for example, floppy disc, floppy disk,
Hard disk, solid state drive, tape or any other magnetic data storage media, CD-ROM, any other optical storage of data are situated between
Matter, any physical medium with sectional hole patterns, RAM, PROM and EPROM, FLASH-EPROM or any other flash memory,
NVRAM, cache, register, any other memory chip or box and identical network version.
The method of embodiments herein according to an embodiment of the present application, equipment (system) and computer program product
Flowchart and or block diagram is described.It should be understood that each process and/or block and flow chart of flowchart and or block diagram
And/or the combination of the process and/or block in block diagram, it can be realized by computer program instructions.A method is created to realize
The function of being specified in one or more blocks in flow chart in one or more processes and/or block diagram.
These computer program instructions are also stored in instructs computer or other programmable datas in a specific way
In the computer-readable memory of processing equipment, so that it includes instruction that the instruction being stored in computer-readable memory, which generates,
Product is made in method, one or more blocks in the instruction method implementation flow chart in one or more processes and/or block diagram
Specified function.
These computer program instructions can also be loaded into computer or other programmable data processing devices, so that
Series of operation steps are obtained to be executed on a computer or other programmable device to generate by computer implemented processing, so that referring to
Enable (it is performed on a computer or other programmable device) provide realization in flow charts one or more processes and/or
The step of function that one or more blocks in block diagrams are specified.In typical configuration, computer equipment includes one or more
A central processing unit (CPUs), input/output interface, network interface and memory.Memory may include volatile memory,
The form of random access memory (RAM) and/or nonvolatile memory etc., in such as computer readable storage medium only
Read memory (ROM) or flash memory ram.Memory is the example of computer readable storage medium.
Computer readable storage medium refer to can store on it can by processor read information or data it is any
The physical storage of type.Therefore, computer readable storage medium can store for being executed by one or more processors
Instruction is included the steps that for making processor execute the instruction consistent or stage with embodiment as described herein.It is computer-readable
Medium includes non-volatile and Volatile media and removable and irremovable medium, and wherein information storage can use any side
Method or technology are implemented.Information can be computer-readable instruction, data structure and program or the module of other data.It is non-instantaneous
The example of computer-readable medium includes but is not limited to phase change random access memory devices (PRAM), static random access memory
(SRAM), dynamic random access memory (DRAM), other kinds of random access memory ram), read-only memory (ROM),
Electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory
(CD-ROM), digital versatile disc (DVD) or other optical memory, cassette tape, tape or magnetic disk storage or other magnetic are deposited
Store up equipment, cache, register or can be used for store can by computer equipment access information it is any other non-transmitting
Medium.Computer readable storage medium is non-temporary, and does not include the temporary of such as modulated data signal and carrier wave etc
Shi Jiezhi.
This description describes the method for wireless charging, device and system.Shown in shown step is intended to explain
Exemplary embodiment, and the mode that the development of ongoing technology will change specific function and be performed should be expected.Therefore,
These embodiments be demonstrated herein in order to illustrate, rather than limit.For example, step or process disclosed herein be not limited to
Described sequence executes, but can execute in any order, and some steps can be omitted, with disclosed embodiment
Unanimously.In addition, for the convenience of description, the range of formation function module is arbitrarily determined.As long as specified function and relationship is suitable
Locality is performed, and alternative range can be determined.Based on teaching contained herein, alternative solution (including it is described herein
Those of equivalent, extension, modification, deviation etc.) will be obvious to those skilled in the technology concerned.It is such to replace
It is fallen into the scope and spirit of disclosed embodiment for scheme.
Although the example and feature that are disclosed principle in described herein, modification, change and other implementations are not taking off
It is allowed in the case where spirit and scope from the disclosed embodiments.In addition, word "comprising", " having ", "comprising",
" comprising " and other similar form are intended to be equivalent in the sense, and are open, because and then in these words
Any one project or projects do not mean that the full list to these projects or projects, or mean to be only limitted to list
Project or projects.It must further be noted that as used in herein and additional claim, singular " a ",
" an " and " the " includes plural form, unless the context clearly determines otherwise.
It should be understood as the present invention is not limited to be described above and the precise structure that is shown in the accompanying drawings, and
Various modifications and change can be carried out in the case where without departing from the scope.It is intended that the power that the scope of the present invention should be only attached
Benefit requires limitation.
Claims (20)
1. for the device that charges to one or more electrical equipments, which is characterized in that the device includes:
Resonance circuit is configured to be wirelessly coupled to one or more electrical equipments；
Boost converter is configured to that the defeated of the power amplifier of driving resonance circuit will be converted into from the received system voltage of device
Enter voltage；
Sensing circuit is configured to detection input voltage and associated input current；And
Controller, construction are as follows:
Receive the input voltage detected and the input current detected；
Received input voltage and received input current are compared with the voltage and current information of storage；
The difference between received input voltage and predetermined voltage is determined according to the voltage and current information of storage；And
Boost converter is controlled so that input voltage is adjusted to predetermined voltage according to determining difference.
2. the apparatus according to claim 1, which is characterized in that further include the grid for the electric current for being configured to control to resonance circuit
Driver, in which:
Sensing circuit, which is also configured to detect one or more electrical equipments, whether there is；And
Controller is also configured to:
It whether there is according to one or more electrical equipments come the gate drivers that are turned on or off；And
Gate drivers are controlled so that input voltage is adjusted to predetermined voltage according to the difference of confirmation.
3. the apparatus according to claim 1 further includes the memory for being configured to storage voltage and current information.
4. the apparatus according to claim 1, which is characterized in that voltage and current information is stored in the storage outside device
In device.
5. the apparatus according to claim 1, which is characterized in that controller be configured in real time by received input voltage and
Received input current is compared with the voltage and current information of storage, and input voltage is adjusted to predetermined voltage, is not required to
It will be from any feedback or communication of any power receiver unit of one or more electrical equipments.
6. the apparatus according to claim 1, which is characterized in that resonance circuit has the resonance frequency higher than 1MHz.
7. the apparatus according to claim 1, which is characterized in that the resonance circuit is configured to be inductively couple to one or more
Another resonance circuit of a electrical equipment.
8. device according to claim 7, which is characterized in that the resonance circuit be configured to be connected to it is described another
The battery of resonance circuit carries out wireless charging.
9. the apparatus according to claim 1, which is characterized in that predetermined voltage makes device and one or more electrical equipments
Between wireless power transmission efficiency maximize.
10. device according to claim 9, which is characterized in that predetermined voltage makes the resonance circuit and one or more
Wireless power transmission efficiency between another resonance circuit of electrical equipment maximizes.
11. passing through the method that the device that charges to one or more electrical equipments is realized, which is characterized in that method includes:
By device received system voltage be converted to driving device resonance circuit power amplifier input voltage, wherein
Resonance circuit is wirelessly coupled to one or more electrical equipments；
Detect input voltage and relevant input current；
The input voltage that will test and the input current detected are compared with the voltage and current information of storage；
The difference between the input voltage and predetermined voltage of detection is determined according to the voltage and current information of storage；And
Boost converter is controlled so that input voltage is adjusted to predetermined voltage according to determining difference.
12. according to the method for claim 11, which is characterized in that further include:
Detecting one or more electrical equipments whether there is；
It whether there is according to one or more electrical equipments come the gate drivers that are turned on or off, wherein gate drivers control is arrived
The electric current of resonance circuit；And
Gate drivers are controlled so that input voltage is adjusted to predetermined voltage according to determining difference.
13. according to the method for claim 11, which is characterized in that voltage and current information is stored in the memory of device
In.
14. according to the method for claim 11, which is characterized in that voltage and current information is stored in depositing outside device
In reservoir.
15. according to the method for claim 11, which is characterized in that further include in real time by input voltage and input current with
The voltage and current information of storage is continuously compared, and input voltage is adjusted to predetermined voltage, is not needed from one
Or any feedback and communication of any power receiver unit of multiple electrical equipments.
16. according to the method for claim 11, wherein resonance circuit has the resonance frequency higher than 1MHz.
17. according to the method for claim 11, wherein the resonance circuit is inductively couple to one or more electrical equipments
Another resonance circuit.
18. according to the method for claim 17, wherein the resonance circuit is to being connected to another resonance circuit
Battery carries out wireless charging.
19. according to the method for claim 11, wherein predetermined voltage makes between device and one or more electrical equipments
Wireless power transmission efficiency maximize.
20. the system for charging to one or more electrical equipments, system include:
Processor, construction are as follows:
Input voltage and input current are compared with the voltage and current information of storage；
The difference between input voltage and predetermined voltage is determined according to the voltage and current information of storage；And control boost converter
Or at least one of gate drivers, input voltage is adjusted to predetermined voltage, is not needed from one or more electricity
Any feedback or communication of any power receiver unit of gas equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088444.3A CN110098645A (en) | 2018-01-30 | 2018-01-30 | The open loop tuning methods of electric toothbrush wireless charging system efficiency optimization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810088444.3A CN110098645A (en) | 2018-01-30 | 2018-01-30 | The open loop tuning methods of electric toothbrush wireless charging system efficiency optimization |
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| CN110098645A true CN110098645A (en) | 2019-08-06 |
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| CN201810088444.3A Pending CN110098645A (en) | 2018-01-30 | 2018-01-30 | The open loop tuning methods of electric toothbrush wireless charging system efficiency optimization |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617879A (en) * | 2019-10-31 | 2019-12-27 | 广州薇美姿实业有限公司 | Method for detecting resonance frequency of electric toothbrush and control system |
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Application publication date: 20190806 |