KR20100101470A - Wireless charging system and method of cotnrolligng the same - Google Patents

Wireless charging system and method of cotnrolligng the same Download PDF

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KR20100101470A
KR20100101470A KR1020090019974A KR20090019974A KR20100101470A KR 20100101470 A KR20100101470 A KR 20100101470A KR 1020090019974 A KR1020090019974 A KR 1020090019974A KR 20090019974 A KR20090019974 A KR 20090019974A KR 20100101470 A KR20100101470 A KR 20100101470A
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South Korea
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charging
battery
host
signal
unit
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KR1020090019974A
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Korean (ko)
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이기민
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엘지이노텍 주식회사
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Publication of KR20100101470A publication Critical patent/KR20100101470A/en

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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
    • H02J50/10—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
    • H04B5/79—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for data transfer in combination with power transfer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

PURPOSE: A wireless charging system and a control method thereof are provided to automatically execute a charging function according to the residual amount of the battery of a mobile terminal by checking the battery state of the terminal through a host part. CONSTITUTION: A wireless charging system comprises a host part(100) and a mobile device. The host part transmits a charging signal according to battery state information. The host part comprises a primary coil(110), a host wireless communications part(130), and a host controller(120). The primary coil transmits a charging signal. The host wireless communications part transmits and receives a radio data signal. The host controller controls the transmission of the charging signal based on the residual amount of the battery of the mobile terminal. The mobile terminal charges a battery according to the charging signal of the host part.

Description

무선 충전시스템 및 그 제어방법{WIRELESS CHARGING SYSTEM AND METHOD OF COTNROLLIGNG THE SAME}Wireless charging system and its control method {WIRELESS CHARGING SYSTEM AND METHOD OF COTNROLLIGNG THE SAME}

본 발명의 실시예는 무선 충전시스템 및 그 제어방법 관한 것이다.An embodiment of the present invention relates to a wireless charging system and a control method thereof.

휴대형 전자기기는 휴대성 및 이동성을 보장하기 위해 배터리 전원으로 구동되어, 사용자는 필요에 따라 배터리의 전원을 충전하여 구동 가능한 전원용량이 유지되도록 한다. The portable electronic device is driven by battery power to ensure portability and mobility, so that the user can charge the battery power as needed to maintain a driveable power capacity.

일반적인 휴대기기의 충전방법은 충전기를 휴대기기에 장착하거나, USB 충전케이블을 통해 유선으로 충전하는 방법을 사용하고 있다.In general, a charging method of a mobile device is a method of mounting a charger on a mobile device or charging a wire through a USB charging cable.

이러한 종래의 충전방법은 충전기 혹은 케이블을 연결해야 하는 불편함이 있다. 또한, 종래의 충전방법은 사용자가 직접 배터리의 용량을 확인하여 충전 여부를 판단해야 한다. 이에, 사용자가 미처 배터리 용량을 확인하지 못한 경우 전원 부족으로 휴대기기를 사용하지 못하게 되는 문제점이 있다.This conventional charging method is inconvenient to connect a charger or a cable. In addition, in the conventional charging method, the user must directly check the capacity of the battery to determine whether the battery is charged. Thus, when the user fails to check the battery capacity, there is a problem in that the mobile device cannot be used due to insufficient power.

본 발명의 실시예는 무선 충전기능과 데이터 통신기능을 겸비하여 휴대기기의 배터리 잔량에 따라 충전기능을 자동으로 수행할 수 있으며, 호스트부에서 휴대기기의 기능을 제어할 수 있는 무선 충전시스템 및 그 제어방법을 제공한다.An embodiment of the present invention has a wireless charging function and a data communication function that can automatically perform the charging function according to the remaining battery capacity of the mobile device, the wireless charging system that can control the function of the mobile device in the host unit Provide control method.

본 발명의 실시예에 의한 무선 충전시스템은, 무선 수신된 배터리 상태정보에 따라 충전신호를 송신하는 호스트부와; 상기 호스트부에 상기 배터리 상태정보를 송신하고, 상기 충전신호를 수신하여 배터리를 충전하는 휴대기기를 포함한다.Wireless charging system according to an embodiment of the present invention, the host unit for transmitting a charging signal according to the wireless state of the battery information received; The mobile device transmits the battery state information to the host, and receives the charging signal to charge the battery.

본 발명의 실시예에 의한 무선 충전시스템의 제어방법은, 휴대기기에서 기기 식별정보를 주기적으로 송신하는 단계와; 상기 기기 식별정보를 수신한 호스트부의 요청에 따라, 휴대기기가 배터리 상태정보를 송신하는 단계와; 상기 휴대기기가 상기 호스트부로부터 충전신호를 수신하여 배터리에 충전하는 단계를 포함한다.A control method of a wireless charging system according to an embodiment of the present invention includes the steps of periodically transmitting device identification information in a portable device; Transmitting, by the mobile device, the battery status information according to a request of the host unit which has received the device identification information; And receiving, by the portable device, a charging signal from the host unit, charging the battery.

본 발명의 실시예에 의하면, 무선 충전기능과 데이터 통신기능을 겸비하여 휴대기기의 배터리 잔량에 따라 충전기능을 자동으로 수행할 수 있으며, 호스트부에서 휴대기기의 기능을 제어할 수 있는 무선 충전시스템 및 그 제어방법을 제공할 수 있다.According to an embodiment of the present invention, a wireless charging system having a wireless charging function and a data communication function can automatically perform a charging function according to the remaining battery capacity of the mobile device, and the host unit can control the function of the mobile device. And a control method thereof.

이하에서는 첨부한 도면을 참조하여 본 발명의 실시예에 따른 무선 충전시스 템 및 그 제어방법에 대해서 상세하게 설명한다. 다만, 본 발명의 실시예를 설명함에 있어, 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그에 대한 상세한 설명은 생략한다.Hereinafter, a wireless charging system and a control method thereof according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the embodiments of the present invention, when it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

도 1은 본 발명의 실시예에 따른 무선 충전시스템의 제어블럭도이다.1 is a control block diagram of a wireless charging system according to an embodiment of the present invention.

도 1에 도시된 바와 같이, 본 발명의 실시예에 따른 무선 충전시스템은, 배터리(500) 충전을 위한 충전신호를 무선 송신하고 데이터신호를 송수신 처리하는 호스트부(100)와, 호스트부(100)로부터 무선 수신된 충전신호를 충전전원으로 변환하여 배터리(500)를 충전하고 호스트부(100)와 데이터를 무선 송수신 처리하는 휴대기기를 포함한다.As shown in FIG. 1, the wireless charging system according to an embodiment of the present invention includes a host unit 100 for wirelessly transmitting a charging signal for charging the battery 500 and transmitting and receiving a data signal, and a host unit 100. And a portable device converting a wirelessly received charging signal into a charging power to charge the battery 500 and wirelessly transmitting and receiving data to and from the host unit 100.

호스트부(100)는 충전신호 송신을 위한 1차코일(110)과, 데이터신호를 송수신 처리하는 호스트 무선통신부(130)와, 휴대기기로부터 무선 수신된 데이터신호를 통해 배터리(500) 용량을 확인하고, 해당 휴대기기에 충전이 필요할 경우 1차코일(110)을 통해 충전신호가 송신되도록 제어하는 호스트 제어부(120)를 포함한다.The host unit 100 checks the capacity of the battery 500 through a primary coil 110 for transmitting a charging signal, a host wireless communication unit 130 for transmitting and receiving data signals, and a data signal wirelessly received from a portable device. The host controller 120 may control the charging signal to be transmitted through the primary coil 110 when the portable device needs to be charged.

호스트부(100)는 1차코일(110)을 통해 충전신호를 송신한다. The host unit 100 transmits a charging signal through the primary coil 110.

호스트 무선통신부(130)는 휴대기기 측과 데이터를 송수신할 수 있다.The host wireless communication unit 130 may transmit and receive data with the mobile device.

호스트 제어부(120)는 10~100MHz 대역의 저주파 신호인 충전신호를 생성하여 1차코일(110)을 통해 송신한다. 호스트 제어부(120)는 호스트 무선통신부(130)를 통해 수신된 배터리(500)의 상태정보에 따라 충전신호의 송수신 여부를 결정할 수 있다. 호스트 제어부(120)는 휴대기기로부터 소정 식별신호를 수신한 경우, 해당 휴대기기를 인식하여 휴대기기의 기능을 제어하기 위한 데이터신호를 송신할 수 있 다.The host controller 120 generates a charging signal that is a low frequency signal of the 10 ~ 100MHz band and transmits it through the primary coil 110. The host controller 120 may determine whether to transmit or receive a charging signal according to the state information of the battery 500 received through the host wireless communication unit 130. When the host controller 120 receives a predetermined identification signal from the mobile device, the host controller 120 may recognize the mobile device and transmit a data signal for controlling the function of the mobile device.

이러한 구성을 포함하는 호스트부(100)는 사용자의 조작을 위한 UI(140)를 구비할 수 있으며, 오디오 플레이어, 핸즈프리장치 등의 다른 기기와 연동하여, 휴대기기와 다른 기기를 중계하는 기능을 수행할 수 있다.The host unit 100 having such a configuration may include a UI 140 for a user's operation, and interoperates with other devices such as an audio player and a hands free device to relay a mobile device and another device. can do.

휴대기기는, 충전신호를 이용하여 배터리(500)를 충전하는 충전부(200)와, 호스트부(100) 측과 데이터를 송수신하는 데이터 송수신부(300)와, 충전기능 및 데이터 송수신기능을 제어하는 충전/통신 제어부(400)를 포함한다. 충전기능 및 데이터 송수신 기능을 제어하는 충전/통신 제어부(400)는, 휴대기기의 주요 기능을 제어하는 휴대기기 제어부(600)로부터 제어신호 및 데이터신호를 공급받을 수 있으며, 혹은, 휴대기기 제어부(600) 내에 마련될 수 있다.The portable device may include a charging unit 200 for charging the battery 500 using a charging signal, a data transmitting and receiving unit 300 for transmitting and receiving data to and from the host unit 100, and a charging function and a data transmitting and receiving function. The charging / communication control unit 400 is included. The charging / communication control unit 400 controlling the charging function and the data transmission / reception function may receive a control signal and a data signal from the mobile device control unit 600 that controls the main functions of the mobile device, or the mobile device control unit ( 600 may be provided.

충전부(200)는 정류제한부(220) 및 정류기(230)를 포함한다. 정류제한부(220)는 2차코일(210)에서 유도된 전류의 전압을 제한하고, 정류기(230)는 유도된 전류의 전압을 변환하여 배터리(500) 충전에 적절한 전압을 갖는 직류전원을 생성한다. 본 실시예에서는 비접촉 방식의 충전을 위해 전자기 유도방식을 이용하며, 그 이론적 근거는 패러데이의 전기법칙(Faraday's law)이다. 호스트부(100)가 1차코일(110)를 통해 10~100MHz 대역의 저주파 신호를 충전신호로 송신하면, 휴대기기는 2차코일(210)을 통해 충전신호를 수신한다. 충전신호가 수신되면 2차코일(210)에는 전자기 유도에 의해 전류가 발생되어 충전부(200)로 입력된다. The charging unit 200 includes a rectifier limiter 220 and a rectifier 230. The rectifier limiter 220 limits the voltage of the current induced in the secondary coil 210, and the rectifier 230 converts the voltage of the induced current to generate a DC power source having a voltage suitable for charging the battery 500. do. In this embodiment, an electromagnetic induction method is used for non-contact charging, and the theoretical basis thereof is Faraday's law. When the host unit 100 transmits a low frequency signal of 10 to 100 MHz band as a charging signal through the primary coil 110, the portable device receives the charging signal through the secondary coil 210. When the charging signal is received, a current is generated in the secondary coil 210 by electromagnetic induction and is input to the charging unit 200.

데이터 송수신부(300)는, 안테나(310)를 통해 무선신호를 송수신하는 무선통신부(320)와, 무선신호 및 데이터신호를 상호 변조 및 복조하는 데이터신호 처리 부(330)와, 2차코일(210)에서 충전부(200)로 입력되는 전류에 포함된 데이터 및 클럭신호를 보상하는 데이터/클럭 보상부(310)를 포함한다. 이러한 데이터 송수신부(300)는, 휴대기기 식별을 위한 식별신호를 주기적으로 송신하여 호스트부(100) 측에서 휴대기기를 감지할 수 있도록 한다. 또한, 데이터 송수신부(300)는 마이컴(420)의 제어에 따라 휴대기기 제어부(600)가 전달하는 데이터신호를 무선 송신하거나 안테나(310)로 수신된 수선신호를 데이터신호로 복조하여 휴대기기 제어부(600)에 제공한다.The data transceiver 300 may include a wireless communication unit 320 for transmitting and receiving a wireless signal through an antenna 310, a data signal processing unit 330 for mutually modulating and demodulating radio signals and data signals, and a secondary coil ( The data / clock compensator 310 compensates for the data and the clock signal included in the current input to the charger 200 from the 210. The data transmission / reception unit 300 periodically transmits an identification signal for identifying a mobile device so that the host device 100 can detect the mobile device. In addition, the data transmission / reception unit 300 wirelessly transmits a data signal transmitted from the mobile device controller 600 under the control of the microcomputer 420 or demodulates a repair signal received by the antenna 310 into the data signal to control the mobile device. Provided at 600.

충전/통신 제어부(400)는 배터리(500)의 상태 및 충전기능을 제어하는 배터리 관리시스템(410)과, 충전기능 및 데이터 송수신기능을 제어하는 마이컴(420)을 포함한다. 배터리 관리시스템(410)은 배터리(500)의 잔량, 온도, 동작상태 등을 감지하여 마이컴(420)에 제공할 수 있으며, 충전부(200)에서 제공하는 전원을 배터리(500)에 충전한다. The charging / communication control unit 400 includes a battery management system 410 for controlling a state and a charging function of the battery 500, and a microcomputer 420 for controlling a charging function and a data transmission / reception function. The battery management system 410 may detect the remaining amount of the battery 500, the temperature, the operation state, etc. and provide the same to the microcomputer 420, and charges the battery 500 with the power provided by the charging unit 200.

여기서, 마이컴(420)은 배터리 관리시스템(410)이 제공하는 배터리(500)의 상태정보와 휴대기기 제어부(600)가 제공하는 데이터신호를 데이터 송수신부(300)를 통해 호스트부(100) 측으로 송신한다.Here, the microcomputer 420 transfers the state information of the battery 500 provided by the battery management system 410 and the data signal provided by the mobile device controller 600 to the host unit 100 through the data transceiver 300. Send.

마이컴(420)은 배터리(500)의 상태정보에 따라 배터리 관리시스템(410)에 충전 제어신호를 인가하여 충전기능이 수행되도록 하거나 충전기능을 종료시킬 수 있다.The microcomputer 420 may apply a charging control signal to the battery management system 410 according to the state information of the battery 500 to perform the charging function or terminate the charging function.

마이컴(420)은 데이터 송수신부(300)를 통해 수신된 호스트부(100)의 데이터신호에 따라 충전기능 혹은 데이터 송수신 기능을 제어할 수 있다. 또한, 마이 컴(420)은 호스트부(100)의 데이터신호를 휴대기기 제어부(600)로 전달함으로써, 휴대기기의 기능이 제어되도록 할 수 있다.The microcomputer 420 may control the charging function or the data transmission / reception function according to the data signal of the host unit 100 received through the data transmission / reception unit 300. In addition, the microcomputer 420 may transmit the data signal of the host unit 100 to the mobile device controller 600 to control the function of the mobile device.

이러한 구성을 포함하는 무선 충전시스템은, 충전기능과 데이터 통신기능을 겸비함으로, 호스트부(100)가 휴대기기의 배터리(500) 상태를 확인하여 자동으로 충전기능을 수행하거나, 호스트부(100)가 휴대기기의 기능을 제어할 수 있다.Wireless charging system including such a configuration, by having a charging function and a data communication function, the host unit 100 checks the state of the battery 500 of the mobile device automatically performs a charging function, or the host unit 100 Can control the functions of the mobile device.

도 2는 본 발명의 제1실시예에 따른 무선 충전시스템의 제어흐름도이다.2 is a control flowchart of a wireless charging system according to a first embodiment of the present invention.

호스트부(100)는 통신영역 내에 진입한 휴대기기를 인식한다(S10). 휴대기기의 무선통신부(320)는 주기적으로 식별신호를 송신하고, 호스트부(100)는 휴대기기가 송신한 식별신호를 수신하여 통신영역 내에 진입한 휴대기기를 인식할 수 있다. The host unit 100 recognizes the mobile device entering the communication area (S10). The wireless communication unit 320 of the mobile device periodically transmits an identification signal, and the host unit 100 may recognize the mobile device entering the communication area by receiving the identification signal transmitted by the mobile device.

통신영역 내에 휴대기기가 진입한 경우, 호스트부(100)는 휴대기기 측과 데이터 통신을 연결한다(S12). When the mobile device enters the communication area, the host unit 100 connects data communication with the mobile device (S12).

호스트부(100)는 휴대기기 측에 배터리(500) 상태정보를 요청하여, 배터리(500)의 상태를 확인한다(S14). 호스트부(100)가 배터리(500)의 상태정보를 요청하면, 휴대기기 측의 마이컴(420)은 배터리 관리시스템(410)으로부터 배터리(500)의 상태정보를 전달받아 데이터신호 처리부(330) 및 무선통신부(320)를 통해 호스트부(100)에 배터리(500) 상태정보를 송신한다. 이에, 호스트부(100)는 배터리(500)의 잔량 등을 포함하는 배터리(500) 상태정보를 수신하여 확인할 수 있다.The host unit 100 checks the state of the battery 500 by requesting the state of the battery 500 from the portable device (S14). When the host unit 100 requests the state information of the battery 500, the microcomputer 420 of the mobile device receives the state information of the battery 500 from the battery management system 410 and the data signal processing unit 330 and the data signal processor 330. The battery 500 status information is transmitted to the host unit 100 through the wireless communication unit 320. Accordingly, the host unit 100 may receive and confirm the battery 500 state information including the remaining amount of the battery 500.

호스트부(100)의 판단결과 배터리(500) 잔량이 충전시작 기준값보다 작은 것으로 판단되면, 호스트부(100)는 1차코일(110)을 통해 충전신호를 송신한다(S16).If the host unit 100 determines that the remaining amount of the battery 500 is smaller than the charging start reference value, the host unit 100 transmits a charging signal through the primary coil 110 (S16).

휴대기기는 2차코일(210)을 통해 충전신호를 수신하여 배터리(500)를 충전한 다(S18). 휴대기기에 충전신호가 수신되면 2차코일(210)에 전류가 여기되어 충전부(200)로 전달되며, 배터리 관리시스템(410)은 충전부(200)에서 공급하는 충전전원을 배터리(500)에 충전한다.The mobile device receives the charging signal through the secondary coil 210 to charge the battery 500 (S18). When the charging signal is received by the mobile device, the current is excited by the secondary coil 210 and transferred to the charging unit 200. The battery management system 410 charges the battery 500 with the charging power supplied from the charging unit 200. do.

이상 설명한 바와 같이, 본 실시예에 따른 무선 충전시스템은 호스트부(100)가 휴대기기의 배터리(500) 상태를 직접 확인하여, 충전이 필요한 경우 자동으로 충전신호를 공급하여 배터리(500)가 충전되도록 할 수 있다.As described above, in the wireless charging system according to the present embodiment, the host unit 100 directly checks the state of the battery 500 of the mobile device, and automatically supplies a charging signal when charging is required so that the battery 500 is charged. You can do that.

도 3은 본 발명의 제2실시예에 따른 무선 충전시스템의 제어흐름도이다.3 is a control flowchart of a wireless charging system according to a second embodiment of the present invention.

호스트부(100)에서 충전신호를 송신하여 휴대기기의 배터리(500)를 충전하는 중에(S30), 휴대기기와 호스트부(100) 간에 통신기능이 개시된다(S32). 충전중에 통신기능이 개시되는 상황으로는, 사용자가 호스트의 UI(140)를 조작하여 휴대기기의 데이터를 확인하고자 하거나, 휴대기기가 휴대폰인 경우 휴대기기에 전화가 수신되는 경우 등, 다양한 상황들을 예측할 수 있다.While charging the battery 500 of the portable device by transmitting a charging signal from the host unit 100 (S30), a communication function is started between the portable device and the host unit 100 (S32). In a situation in which a communication function is initiated while charging, various situations such as a user trying to check data of a mobile device by operating the UI 140 of the host or when a call is received by the mobile device when the mobile device is a mobile phone It can be predicted.

충전중 데이터 통신기능이 개시되면, 호스트는 충전신호 및 데이터신호를 동시에 송신한다(S34). 여기서, 충전신호는 MHz 대역의 신호이고 데이터신호는 상대적으로 고주파 대역인 GHz 대역 신호를 이용함으로써, 충전신호 및 데이터신호를 동시 송신하는 것이 가능하다.When the data communication function is started during charging, the host simultaneously transmits a charging signal and a data signal (S34). Here, the charging signal is a signal of the MHz band and the data signal is a high frequency band GHz band signal, it is possible to transmit the charging signal and the data signal at the same time.

휴대기기는 수신된 충전신호 및 데이터신호를 처리하여, 배터리(500)가 충전되도록 하는 한편, 데이터신호에 따른 기능을 수행할 수 있다(S36). 예컨대, 휴대기기는 충전기능을 수행함과 동시에, 휴대기기 내에 저장된 데이터를 호스트부(100)에 전달할 수 있다. 또한, 휴대기기가 휴대폰인 경우, 송수신되는 전화 음 성신호를 휴대기기와 호스트부(100) 간에 송수신 함으로써, 호스트부(100)가 제어하는 핸즈프리장치(미도시)를 이용할 수 있다.The portable device may process the received charging signal and the data signal to allow the battery 500 to be charged and perform a function according to the data signal (S36). For example, the mobile device may perform a charging function and transfer data stored in the mobile device to the host unit 100. In addition, when the mobile device is a mobile phone, hands-free devices (not shown) controlled by the host unit 100 may be used by transmitting and receiving telephone voice signals transmitted and received between the mobile device and the host unit 100.

이상에서 실시예를 중심으로 설명하였으나 이는 단지 예시일 뿐 본 발명을 한정하는 것이 아니며, 본 발명이 속하는 분야의 통상의 지식을 가진 자라면 본 실시예의 본질적인 특성을 벗어나지 않는 범위에서 이상에 예시되지 않은 여러 가지의 변형과 응용이 가능함을 알 수 있을 것이다. 예를 들어, 실시예에 구체적으로 나타난 각 구성 요소는 변형하여 실시할 수 있는 것이다. 그리고 이러한 변형과 응용에 관계된 차이점들은 첨부된 청구 범위에서 규정하는 본 발명의 범위에 포함되는 것으로 해석되어야 할 것이다.Although described above with reference to the embodiment is only an example and is not intended to limit the invention, those of ordinary skill in the art to which the present invention does not exemplify the above within the scope not departing from the essential characteristics of this embodiment It will be appreciated that many variations and applications are possible. For example, each component specifically shown in the embodiment can be modified. And differences relating to such modifications and applications will have to be construed as being included in the scope of the invention defined in the appended claims.

도 1은 본 발명의 실시예에 따른 무선 충전시스템의 제어블럭도.1 is a control block diagram of a wireless charging system according to an embodiment of the present invention.

도 2는 본 발명의 제1실시예에 따른 무선 충전시스템의 제어흐름도. 2 is a control flowchart of a wireless charging system according to a first embodiment of the present invention.

도 3은 본 발명의 제2실시예에 따른 무선 충전시스템의 제어흐름도. 3 is a control flowchart of a wireless charging system according to a second embodiment of the present invention.

Claims (10)

무선 수신된 배터리 상태정보에 따라 충전신호를 송신하는 호스트부와;A host unit configured to transmit a charging signal according to wirelessly received battery state information; 상기 호스트부에 상기 배터리 상태정보를 송신하고, 상기 충전신호를 수신하여 배터리를 충전하는 휴대기기를 포함하는 무선 충전시스템.And a portable device for transmitting the battery state information to the host and receiving the charging signal to charge the battery. 제1항에 있어서,The method of claim 1, 상기 호스트부는,The host unit, 상기 충전신호 송신을 위한 1차코일과;A primary coil for transmitting the charging signal; 무선 데이터신호를 송수신하는 호스트 무선통신부와;A host wireless communication unit for transmitting and receiving wireless data signals; 상기 무선통신부를 통해 수신된 상기 배터리 상태정보를 통해 상기 휴대기기의 배터리 잔량을 확인하고, 상기 배터리 잔량이 기준값 이하로 상기 배터리의 충전이 필요한 것으로 판단된 경우 상기 1차코일을 통해 충전신호가 송신되도록 제어하는 호스트 제어부를 포함하는 무선 충전시스템.The remaining battery level of the mobile device is checked through the battery state information received through the wireless communication unit, and when it is determined that the battery needs to be charged below the reference value, the charging signal is transmitted through the primary coil. Wireless charging system including a host control unit for controlling to. 제1항에 있어서,The method of claim 1, 상기 휴대기기는,The mobile device, 상기 충전신호를 수신하여 상기 배터리 충전을 위한 충전전원을 생성하는 충전부와;A charging unit configured to receive the charging signal and generate charging power for charging the battery; 무선 데이터신호를 송수신하는 휴대기기 무선통신부와;A wireless communication unit for transmitting and receiving a wireless data signal; 상기 무선통신부를 통해 상기 배터리 상태정보를 송신하고, 상기 충전부에서 생성된 상기 충전전원이 상기 배터리에 충전되도록 제어하는 충전/통신 제어부를 포함하는 무선 충전시스템.And a charging / communication control unit for transmitting the battery state information through the wireless communication unit and controlling the charging power generated by the charging unit to be charged in the battery. 제3항에 있어서,The method of claim 3, 상기 충전부는,The charging unit, 상기 충전신호 수신을 위한 2차코일과;A secondary coil for receiving the charging signal; 상기 2차코일에 유도된 전원의 전압을 소정 크기로 정류하는 정류제한부와;A rectifying limiter for rectifying the voltage of the power source induced in the secondary coil to a predetermined magnitude; 상기 정류된 전원을 상기 배터리 충전을 위한 직류 충전전원으로 변환하는 정류기를 포함하는 무선 충전시스템.And a rectifier converting the rectified power into a DC charging power for charging the battery. 제4항에 있어서,The method of claim 4, wherein 상기 충전/통신 제어부는,The charging / communication control unit, 상기 충전부에서 생성된 상기 충전전원을 상기 배터리에 충전하고, 상기 배터리의 상태를 감지하여 상기 배터리 상태정보를 생성하는 배터리 관리시스템을 포함하는 무선 충전시스템.And a battery management system that charges the charging power generated by the charging unit to the battery and detects a state of the battery to generate the battery state information. 제5항에 있어서,The method of claim 5, 상기 배터리 관리시스템이 생성한 상기 배터리 상태정보를 상기 휴대기기 무선통신부를 통해 송신하는 마이컴을 포함하는 무선 충전시스템.And a microcomputer for transmitting the battery state information generated by the battery management system through the wireless communication unit of the portable device. 제6항에 있어서,The method of claim 6, 상기 마이컴은,The microcomputer, 상기 휴대기기 무선통신부를 통해 수신된 상기 무선 데이터신호에 따라, 상기 휴대기기의 기능제어를 위한 데이터신호를 생성하는 무선 충전시스템.And a data signal for controlling a function of the portable device according to the wireless data signal received through the wireless device wireless communication unit. 휴대기기에서 기기 식별정보를 주기적으로 송신하는 단계와;Periodically transmitting device identification information from the mobile device; 상기 기기 식별정보를 수신한 호스트부의 요청에 따라, 휴대기기가 배터리 상태정보를 송신하는 단계와;Transmitting, by the mobile device, the battery status information according to a request of the host unit which has received the device identification information; 상기 휴대기기가 상기 호스트부로부터 충전신호를 수신하여 배터리에 충전하는 단계를 포함하는 무선 충전시스템의 제어방법.And receiving, by the portable device, a charging signal from the host unit to charge the battery. 제8항에 있어서,The method of claim 8, 상기 호스트가 상기 배터리 상태정보를 수신하여 충전여부를 판단하는 단계를 포함하는 무선 충전시스템의 제어방법.And determining, by the host, whether the battery is charged by receiving the battery state information. 제8항에 있어서,The method of claim 8, 상기 배터리의 충전중에, 상기 휴대기기와 호스트 간의 데이터 송수신 기능이 활성화되는 단계와;Activating a data transmission / reception function between the mobile device and a host while the battery is being charged; 상기 호스트부가 상기 충전신호 및 데이터신호를 동시에 송신하는 단계와;Transmitting, by the host unit, the charging signal and the data signal simultaneously; 상기 휴대기기가 상기 충전신호를 상기 배터리에 충전하는 동시에, 상기 데이터신호를 처리하는 단계를 포함하는 무선 충전시스템의 제어방법.And charging, by the portable device, the charging signal to the battery, and simultaneously processing the data signal.
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US9728980B2 (en) 2011-11-10 2017-08-08 Lg Innotek Co., Ltd. Wireless power transmitter, wireless power receiver, wireless power transmission method and wireless power reception method
US10110074B2 (en) 2011-11-10 2018-10-23 Lg Innotek Co., Ltd. Wireless power transmitter, wireless power receiver, wireless power transmission method and wireless power reception method
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US9124309B2 (en) 2011-11-10 2015-09-01 Lg Innotek Co., Ltd. Wireless power transmitter using a resonance coil via a resonance frequency band and corresponding method
US9225177B2 (en) 2011-11-10 2015-12-29 Lg Innotek Co., Ltd. Wireless power receiver for receiving power from a wireless power transmitter using a power signal through a resonance frequency band
US9197070B2 (en) 2011-11-10 2015-11-24 Lg Innotek Co., Ltd. Wireless power transmitter using a resonance coil via a resonance frequency band and corresponding method
US9054747B2 (en) 2012-03-26 2015-06-09 Lg Innotek Co., Ltd. Mobile terminal and power control method thereof
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US9680335B2 (en) 2013-12-20 2017-06-13 Samsung Electro-Mechanics Co., Ltd. Apparatus for transmitting and receiving wireless power
KR20140138554A (en) * 2014-10-22 2014-12-04 엘지이노텍 주식회사 Apparatus for receiving wireless power and method for receiving wireless power, method for transmitting information and method for receiving information
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