KR101787236B1 - Apparatus of controlling wireless power transmitter and method of controlling wireless power transmitter - Google Patents

Apparatus of controlling wireless power transmitter and method of controlling wireless power transmitter Download PDF

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Publication number
KR101787236B1
KR101787236B1 KR1020160009785A KR20160009785A KR101787236B1 KR 101787236 B1 KR101787236 B1 KR 101787236B1 KR 1020160009785 A KR1020160009785 A KR 1020160009785A KR 20160009785 A KR20160009785 A KR 20160009785A KR 101787236 B1 KR101787236 B1 KR 101787236B1
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South Korea
Prior art keywords
wireless power
target device
power transmission
source device
short
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KR1020160009785A
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Korean (ko)
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KR20170089495A (en
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양정웅
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주식회사 한컴지엠디
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    • 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
    • H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
    • H02J7/025—
    • H02J2007/0096—

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

A wireless power transmission control apparatus is disclosed. One embodiment includes a memory that stores a series of instructions for controlling transmission of wireless power; And a controller for accessing the memory and executing the command, wherein the controller controls the wireless power to be transmitted to the target device, and when the short range communication of the source device is activated while the wireless power is being transmitted, And controls the source device to stop transmitting the wireless power so as to perform the close-range communication with the target device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a wireless power transmission control apparatus and a wireless power transmission control method,

The following embodiments are directed to techniques for controlling a wireless power transmission device.

A mobile terminal such as a smart phone or a tablet PC can receive power wirelessly. Also, the mobile terminal can receive data from the counterpart terminal or transmit data to the counterpart terminal through short-range wireless communication. If the mobile terminal performs short-range communication while transmitting wireless power, interference may occur between the wireless power transmission and the short-range communication.

On the other hand, Korean Patent Laid-Open Publication No. 10-2015-0060827 (filed on September 23, 2013, filed on Jun. 03, 2015, filed by Samsung Electronics, entitled: A method and an apparatus for the present invention). The Korean Patent Laid-Open Publication No. 2003-325886 discloses a method for establishing a wireless communication link between a coordinating transmitter and each receiver, applying a voltage to the coordinating transmitter, and configuring each receiver to measure an induced current in response to the applied voltage, Measuring respective mutual impedances between the coordinating transmitter and each receiver and calculating respective matching impedances for the coordinating transmitter and each receiver based on the corresponding mutual impedance, and for each receiver to calculate the respective matching impedances A method of wireless power transmission is disclosed in which each of the receivers transmits each matching impedance to each receiver, and the coordinating transmitter adjusts to have each of the matching impedances.

Embodiments can reduce or avoid interference that occurs between the wireless power transmission and the local communication of the source device. In addition, embodiments may provide various services to a user of the target device through short-range communication formed between the source device and the target device.

A wireless power transmission control apparatus according to one aspect, comprising: a memory for storing a series of commands for controlling transmission of wireless power; And a controller for accessing the memory and executing the command, wherein the controller controls the wireless power to be transmitted to the target device, and when the short range communication of the source device is activated while the wireless power is being transmitted, And controls the source device to stop transmitting the wireless power so as to perform the close-range communication with the target device.

A wireless power transmission control method according to one aspect includes: controlling wireless power to be transmitted to a target device; And stopping the transmission of the wireless power so that the source device performs the short-range communication with the target device when short-range communication of the source device is activated while the wireless power is being transmitted.

Embodiments can avoid interference occurring between the source device's wireless power transmission and local communications. In addition, embodiments may provide various services to a user of the target device through short-range communication formed between the source device and the target device.

1 is a block diagram illustrating a wireless power transmission control apparatus according to an embodiment of the present invention.
2 is a diagram for explaining power transmission and local communication of a source device according to an embodiment.
3 is a diagram for explaining an example of a source device according to an embodiment.
4 is a diagram for explaining another example of a source device according to an embodiment.
5A and 5B are diagrams for explaining an example of the operation of the source device and the target device according to the embodiment.
6 is a diagram for explaining another example of the operation of the source device and the target device according to the embodiment.
7 is a flowchart illustrating a method of controlling a wireless power transmission according to an embodiment.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

Various modifications may be made to the embodiments described below. It is to be understood that the embodiments described below are not intended to limit the embodiments, but include all modifications, equivalents, and alternatives to them.

The terms used in the examples are used only to illustrate specific embodiments and are not intended to limit the embodiments. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this embodiment belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as ideal or overly formal in the sense of the art unless explicitly defined herein Do not.

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. In the following description of the embodiments, a detailed description of related arts will be omitted if it is determined that the gist of the embodiments may be unnecessarily blurred.

1 is a block diagram illustrating a wireless power transmission control apparatus according to an embodiment of the present invention.

Referring to FIG. 1, a wireless power transmission control apparatus 110 according to an embodiment includes a memory 111 and a controller 112.

Memory 111 stores a series of instructions for controlling the transmission of wireless power. The controller 112 accesses the memory 111 and executes the instruction. More specifically, the controller 112 controls the wireless power to be transmitted to the target device. The wireless power transmitted to the target device may be generated based on either a magnetic induction scheme or a resonance scheme. The wireless power transmission control device 110 may cause the wireless power to be transmitted to the target device via the antenna 130. [ In addition, the wireless power transmission control apparatus 110 may prevent the wireless power from being transmitted to the target device when there is a request to stop the transmission of wireless power.

<Avoidance of interference between wireless power transmission and local area communication>

When short range communication of the source device is activated while the wireless power is being transmitted to the target device, the controller 112 controls to stop the transmission of the wireless power. In one embodiment, the first frequency used for close range communication may correspond to a second frequency used for transmission of the radio power. For example, the first frequency used for NFC communication during short-range communication and the second frequency used for transmission of wireless power according to A4WP may be in a harmonic relationship with each other. Assume that the first frequency corresponds to the second frequency. If the source device performs simultaneous transmission of wireless power and short-range communication, interference may occur between the transmission of wireless power and short-range communication.

When short range communication of the source device is activated while wireless power is being transmitted to the target device, an application processor (AP) 120 that controls short range communication may request the controller 112 to stop transmitting the wireless power . The wireless power transmission control apparatus 110 may include an I2C port and the controller 112 may be requested to stop transmission of wireless power from the AP 120 via an Inter-Integrated Circuit (I2C) port. The controller 112 may prevent wireless power from being transmitted to the target device upon a request to stop transmission of the wireless power. If the transmission of wireless power is interrupted, the AP 120 may cause the source device to perform near-field communication with the target device. When the local communication of the source device and the target device is deactivated, the AP 120 transmits to the controller 112 information indicating that the local communication is inactivated. Accordingly, the controller 112 can cause the wireless power to be retransmitted to the target device.

If the source device is enabled for close range communication while the source device is transmitting wireless power to the target device, the source device may temporarily stop the transmission of the wireless power and perform near-field communication. Thereby, interference may not occur between the transmission of the radio power and the local communication.

In one embodiment, the source device may receive service information for the target device while transmitting wireless power to the target device. The service information may include, for example, coupon information, mileage accumulation information, advertisement information, living information, or shopping information. When receiving the service information, the source device can activate the close range communication. At this time, when the wireless power is transmitted to the target device, the controller 112 can change its operation state to the wireless power transmission interruption state. The source device may not transmit the wireless power to the target device based on the change of the operation state, and may transmit the service information to the target device through the near field communication. When the transmission of the service information is completed and the local communication of the source device is inactivated, the controller 112 can change its operating state to the wireless power transmission state. Based on the change in operating state, the source device can transmit wireless power to the target device.

<Confirmation of receiving power of wireless power for target device>

The source device may receive identification information of the target device from the local area communication system. When the target device enters the charging area of the source device, the controller 112 can check whether the target device is authorized to receive wireless power based on the identification information of the target device. For example, in a coffee shop, when a user of a target device NFC tags a target device to a POS (point of sale) system in order to purchase coffee, the POS system can obtain identification information of the target device. A source device that is wirelessly and / or wirelessly connected to the POS system may receive the first identification information of the target device from the POS system. When the target device enters the charging area of the source device, the source device can signal to the target device. During signaling, the source device may obtain second identification information of the target device. The source device can check whether the first identification information and the second identification information match each other. If the first identification information and the second identification information match, the source device can transmit wireless power to the target device. Further, the source device can receive mileage accumulation information, purchase information, and the like from the local communication system while transmitting the wireless power to the target device. The source device may temporarily suspend transmission of wireless power to transmit mileage accumulation information, purchase information, etc. to the target device.

<Multiple wireless charging of source device>

The second target device, which is different from the target device, may enter the charging area of the source device while the source device transmits wireless power to the target device. The source device may signal to the second target device. Through signaling, the source device can identify the second target device and can transmit wireless power to the second target device. In this case, the source device transmits wireless power to a plurality of target devices. At this time, when the short distance communication of the source device is activated, the controller 112 can control the wireless power transmission to be temporarily stopped. Based on the control of the controller 112, the source device can temporarily suspend the transmission of wireless power to the target device and the second target device.

<Checking the wireless charging method supported by the target device>

The source device may support a plurality of wireless charging schemes. The plurality of wireless charging methods may include, for example, a magnetic induction method and a resonance method. Standard specifications related to the magnetic induction method include the Power Matters Alliance (PMA) and the Wireless Power Consortium (WPC), and the standard specification related to the resonance method includes the A4WP (Alliance for Wireless Power). The source device may support a plurality of standard specifications.

When the source device detects the target device, it can generate a first signaling message corresponding to a plurality of wireless charging schemes, and can transmit the first signaling message to the target device. Here, the source device may or may not receive a response of the first signaling message from the target device. That is, when the target device reads the first signaling message, the target device can transmit a response of the first signaling message to the source device. If the target device can not read the first signaling message, the target device can not transmit the response of the first signaling message to the source device. When receiving the response of the first signaling message from the target device, the source device can confirm that the target device supports the wireless charging scheme corresponding to the first signaling. If the source device fails to receive the response of the first signaling from the target device, the source device may generate a second signaling message corresponding to the other of the plurality of wireless charging schemes, and may transmit the second signaling message to the target device.

For example, when the first signaling message corresponds to A4WP, if the target device supports WPC, the target device can not read the first signaling message corresponding to A4WP. As a result, the target device can not transmit the response of the 1 signaling message to the source device. In this case, since the source device does not receive the response of the 1 signaling message, the source device can generate the second signaling message corresponding to A4WP and other standard specifications. The source device may send a second signaling message to the target device, and if the response of the second signaling message is received from the target device, the source device may verify that the target device supports A4WP.

2 is a diagram for explaining power transmission and local communication of a source device according to an embodiment.

Referring to FIG. 2, the source device 210 includes a transfer unit 220.

The transmission unit 220 may include a power transmission unit for wireless power transmission and a short range communication unit for short range communication. The power transmission unit may include a transmission coil, and the short range communication unit may include an NFC antenna.

The source device 210 may transmit wireless power to a plurality of target devices 230-250. Each of the plurality of target devices 230 to 250 may support different wireless charging schemes. For example, target device 230 may support WPC, target device 240 may support PMA, and target device 250 may support A4WP. The source device 210 may support a plurality of wireless charging schemes. For example, the source device 210 may transmit the wireless power according to the WPC to the target device 230, the wireless power according to the PMA to the target device 240, and the wireless power according to the A4WP, (250).

The local communication portion of the source device 210 may be activated while the source device 210 transmits wireless power to the plurality of target devices 230 to 250. [ When the local communication unit is activated, the source device 210 can confirm a wireless charging method that can cause interference with the local communication. If the first frequency used for short-range communication and the second frequency used for wireless charging scheme are in harmonic relation with each other, interference may occur between the short-range communication and the wireless power transmission. For example, when the first frequency used in the NFC communication is 13.56 MHz and the second frequency used in the wireless charging method of the A4WP is 6.78 MHz, the first frequency and the second frequency are in harmonic relation with each other.

When the short distance communication of the source device 210 is activated, the source device 210 may stop the operation according to the wireless charging method which may cause interference with the short distance communication. In the above example, when the NFC communication of the source device 210 is activated, the source device 210 may temporarily suspend the wireless power transmission according to A4WP. Also, the source device 210 may not interrupt the wireless power transmission according to the PMA and / or the WPC. When the NFC communication is activated, the source device can transmit the wireless power to the target device 230 supporting the WPC and the target device 240 supporting the PMA, and wireless power can be transmitted to the target device 250 supporting the A4 WP It may not transmit.

3 is a diagram for explaining an example of a source device according to an embodiment.

The source device 300 shown in FIG. 3 may support WPC.

Referring to FIG. 3, the source device 300 includes a communication and control unit 310, a power conversion unit 320, and a transmission coil 330. Although not shown in FIG. 3, the source device 300 may further include a system unit.

The source may supply power to the power conversion unit 320. [ When the target device including the receiving coil approaches the source device 300, the current flowing in the transmitting coil 330 may change. Since the transmission coil operates as a primary coil and the reception coil operates as a secondary coil, an induced electromotive force is generated in the secondary coil, and the target device can be charged by the induced electromotive force.

The target device can fluctuate the load for communication and transmit the packet to the source device. The communication and control unit 310 can demodulate the packet.

The system portion may include a plurality of operating states. For example, the system portion may include a Selection state, a Ping state, an Identification / Configuration state, and a Power Transfer state.

When the system unit operates in the selected state, the source device 300 can check whether there is an object in the charge coverage. If the object is in charge coverage, the system portion can enter the ping state and the source device 300 can send a message to the object. At this time, the message transmitted to the object may be the signaling message described with reference to FIGS. When a response of an object is received, the object can be identified as a target device capable of receiving power. The system unit can enter the identification / setting state, the source device 300 can identify the target device, and can obtain the setting information for power transmission. If the target device is identified and configuration information is obtained, the system portion may enter a power transfer state and the source device 300 may transmit power to the target device.

The power transmission and source devices described with reference to FIG. 3 are exemplary only in accordance with one embodiment, and the power transmission and source devices are not limited to the examples described above

4 is a diagram for explaining another example of a source device according to an embodiment.

The source device 400 shown in FIG. 4 may support A4WP.

4, the source device 400 includes a power unit 410, an amplification unit 420, a matching circuit 430, and a source resonator 440. Although not shown in FIG. 4, the source device 400 may further include a communication unit. The communication unit may include a short-range communication module such as Zigbee, Bluetooth or the like. Further, the communication unit can transmit data to the target device through out-band communication.

The power unit 410 can receive an AC signal from the outside, and can generate electric power using an AC signal. The power unit 410 can rectify the AC signal to output a DC voltage. The power unit 410 may provide the DC voltage to the amplification unit 420.

The amplification unit 420 may convert the DC voltage to the AC voltage based on the switching pulse signal. Here, the amplifier 420 can generate an AC voltage having a resonant frequency.

The matching circuit 430 may set the resonance bandwidth of the source resonator 440 or the impedance matching frequency of the source resonator 440. In addition, the matching circuit 430 can adjust the resonance frequency of the source resonator 440. Since the resonance frequency is defined based on the capacitance and the inductance, the matching circuit 430 can adjust the resonance frequency by adjusting the capacitance and / or the inductance. The Q-factor of the source resonator 440 can be determined according to the resonant bandwidth of the source resonator or the impedance matching frequency of the source resonator.

The source resonator 440 may deliver electromagnetic energy to the target device. The source resonator 440 may resonate within the resonant bandwidth.

The power transmission and source devices described with reference to FIG. 4 are exemplary only in accordance with one embodiment, and the power transmission and source devices are not limited to the examples described above.

5A and 5B are diagrams for explaining an example of the operation of the source device and the target device according to the embodiment.

Referring to FIG. 5A, a target device 510 and a local area communication system are shown. The local area communication system may include an NFC terminal 520 and a main terminal 530. The local area communication system may be, for example, a POS system.

The target device 510 may be tagged with the NFC terminal 520. For example, a user of the target device 510 may tag the target device 510 to the NFC terminal 520 to pay for the article value. Here, the NFC terminal 520 may acquire the first identification information of the target device 510 and may transmit the first identification information to the main terminal 530. The first identification information may include a MAC address of the target device 510, for example.

The main terminal 530 may transmit the first identification information to the source device 540. The source device 540 may be connected to the main terminal 530 in a wired and / or wireless manner.

Referring to FIG. 5B, the source device 540 may be located below the top plate of the table. The location of the source device 540 shown in FIG. 5B is exemplary only, and the location of the source device 540 is not limited to that shown in FIG. 5B.

When the target device 510 enters the charging area of the source device 540, the source device 540 can verify that the target device 510 is authorized to receive wireless power. The source device 540 can signal with the target device 510 and obtain the second identification information of the target device 510 through signaling. The source device 540 may verify that the second identification information corresponds to the first identification information and may transmit the wireless power to the target device 510 if the second identification information corresponds to the first identification information.

The source device 540 may receive service information from the main terminal 530 while the source device 540 transmits wireless power to the target device 510. [ The service information may include, for example, coupon information, advertisement information, and the like. The source device 540 may activate the local communication based on the receipt of the service information. When the short range communication of the source device 540 is activated, the source device 540 may stop transmitting the wireless power. If the transmission of wireless power is interrupted, the source device 540 may send the service information to the target device 510. [ When the service information is transmitted to the target device and the local communication of the source device 540 is deactivated, the source device 540 may transmit the wireless power to the target device 510. At this time, since the source device 540 has transmitted the wireless power to the target device 510 prior to the activation of the short distance communication, the source device 540 can transmit the wireless power without signaling to the target device 510.

6 is a diagram for explaining another example of the operation of the source device and the target device according to the embodiment.

6, a display 610 is shown. The source device may be included in the display 610. The source device may also be a dongle and may be connected to the USB port of the display 610 to transmit wireless power. Also, the source device may be included in the set-top terminal of the display 610. Also, the source device may be included in the base 620 of the display 610. The location of the source device described with reference to FIG. 6 is only an example, and the location of the source device is not limited to the above description.

The source device transmits wireless power to the target device 640. In Figure 6, dashed line 621 represents the transmission of wireless power. The target device 640 may transmit the state of charge to the source device. For example, the target device 640 may transmit the state of charge to the source device via out-band communication. The source device may display a state of charge on the display 610.

In one embodiment, data such as documents, pictures, moving pictures, etc., stored in the target device 640 may be displayed on the display 610. More specifically, the set-top box of the display 610 and / or the display 610 may receive a request to display data from a user of the target device 640. The set-top box of display 610 and / or display 610 may send a data display request to the source device.

The source device may receive a data indication request from the set-top box of the display 610 and / or the display 610 while transmitting the wireless power to the target device 640. The source device may activate the local communication based on receipt of the data presentation request. Here, the short-range communication is a communication method distinguished from the out-band communication of the source device. That is, the local area communication activated based on the reception of the data display request can be distinguished from the communication method supported by the wireless charging method of the source device. The source device may stop transmitting the wireless power so that interference does not occur between the local communication and the wireless power transmission. The source device can perform close-range communication with the target device, and can receive data from the target device.

If the near field communication is disabled, the source device may send the wireless power to the target device 640.

The source device may transmit data to the display 610 and / or the set-top box of the display 610, and the data may be displayed on the display 610.

7 is a flowchart illustrating a method of controlling a wireless power transmission according to an embodiment.

The wireless power transmission control method shown in Fig. 7 can be performed by the wireless power transmission control apparatus.

The wireless power transfer control device controls 710 wireless power to be transmitted to the target device.

In addition, the wireless power transmission control device stops transmitting the wireless power so that the source device performs close-range communication with the target device when the short-range communication of the source device is activated while the wireless power is transmitted to the target device (720). The wireless power transmission control apparatus can be requested to stop the transmission of the wireless power from the application processor that controls the short range communication when the short range communication is activated. The wireless power transmission control apparatus can change its operation state to a wireless power transmission suspension state upon request.

In one embodiment, the source device may receive service information for the target device while transmitting wireless power to the target device. The source device may activate the local communication to transmit the service information to the target device. At this time, interference may occur between the local communication and the wireless power transmission. The wireless power transmission control apparatus can change its operation state to the wireless power transmission interruption state so that interference does not occur. As a result, the source device may not transmit wireless power to the target device, and may transmit the service information to the target device.

The wireless power transmission control apparatus can control the wireless power to be retransmitted to the target device when the short distance communication is inactivated. When the short range communication is disabled, the application processor can notify the wireless power transmission control device that the short range communication is inactivated. As a result, the wireless power transmission control apparatus can change its operation state to the wireless power transmission state. The wireless power transfer control device may cause the source device to retransmit wireless power to the target device.

1 to 6 can be applied to the matters described with reference to FIG. 7, so that detailed description will be omitted.

The apparatus described above may be implemented as a hardware component, a software component, and / or a combination of hardware components and software components. For example, the apparatus and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA) , A programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI &gt; or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (14)

A memory for storing a series of instructions for controlling transmission of wireless power; And
A controller for accessing the memory and executing the instruction,
Lt; / RTI &gt;
The controller comprising:
The method comprising: controlling the wireless power to be transmitted to the target device; and when the short-range communication of the source device is activated while the wireless power is being transmitted, the charging method corresponding to the transmission of the wireless power is a charging method And controls the source device to stop transmission of the wireless power in order to perform the close range communication with the target device,
Wireless power transmission control device.
The method according to claim 1,
The controller comprising:
Receiving a request to stop transmission of the wireless power from an application processor that controls the short-range communication when the short-
Wireless power transmission control device.
The method according to claim 1,
The controller comprising:
And controlling the wireless power to be retransmitted to the target device when the short-range communication is inactivated.
Wireless power transmission control device.
The method according to claim 1,
The source device comprising:
Receiving identification information of the target device from the local communication system,
Wherein,
Wherein the short-range communication system is obtained through a first short-range communication with the target device,
Wireless power transmission control device.
5. The method of claim 4,
The controller comprising:
When the target device enters the charging area of the source device, confirms whether the target device is authorized to receive the wireless power based on the identification information,
Wireless power transmission control device.
The method according to claim 1,
The controller comprising:
And changing the operation state to the wireless power transmission interruption state when the service information for the target device is received while the wireless power is being transmitted to the target device and the short distance communication is activated based on the reception,
Wireless power transmission control device.
The method according to claim 6,
The controller comprising:
Changing the operating state to a wireless power transmission state when the service information is transmitted to the target device via the short distance communication and the short distance communication is inactivated,
Wireless power transmission control device.
A radio power transmission control method of a radio power transmission control apparatus,
Controlling the wireless power to be transmitted to the target device; And
Wherein when the short distance communication of the source device is activated while the wireless power is being transmitted, it is checked whether the charging method corresponding to the transmission of the wireless power is a charging method that can cause interference with the short distance communication, Stopping the transmission of the wireless power for the device to perform the close range communication with the target device
/ RTI &gt;
Wireless power transmission control method.
9. The method of claim 8,
When the short-range communication is activated, receiving an interruption of the transmission of the wireless power from the application processor controlling the short-range communication
&Lt; / RTI &gt;
Wireless power transmission control method.
9. The method of claim 8,
And controlling the wireless power to be retransmitted to the target device when the short-range communication is inactivated
&Lt; / RTI &gt;
Wireless power transmission control method.
9. The method of claim 8,
The source device comprising:
Receiving identification information of the target device from the local communication system,
Wherein,
Wherein the short-range communication system is obtained through a first short-range communication with the target device,
Wireless power transmission control method.
12. The method of claim 11,
Determining whether the target device is authorized to receive the wireless power based on the identification information when the target device enters the charging area of the source device
&Lt; / RTI &gt;
Wireless power transmission control method.
9. The method of claim 8,
Wherein the step of stopping transmission of the wireless power comprises:
When the target device receives service information for the target device while the wireless power is being transmitted to the target device, and when the short-range communication is activated based on the reception, the operation state of the wireless power- &Lt; / RTI &gt;
/ RTI &gt;
Wireless power transmission control method.
14. The method of claim 13,
Changing the operation state to a wireless power transmission state when the service information is transmitted to the target device through the short distance communication and the short distance communication is inactivated
&Lt; / RTI &gt;
Wireless power transmission control method.
KR1020160009785A 2016-01-27 2016-01-27 Apparatus of controlling wireless power transmitter and method of controlling wireless power transmitter KR101787236B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247124A (en) * 2008-03-31 2009-10-22 Panasonic Corp Electronic apparatus, charger and electronic apparatus charging system
JP2012518381A (en) * 2009-02-13 2012-08-09 クアルコム，インコーポレイテッド Wireless power for rechargeable and charging devices

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009247124A (en) * 2008-03-31 2009-10-22 Panasonic Corp Electronic apparatus, charger and electronic apparatus charging system
JP2012518381A (en) * 2009-02-13 2012-08-09 クアルコム，インコーポレイテッド Wireless power for rechargeable and charging devices

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