WO2017176064A1 - Dispositif de communication et dispositif électronique dotés d'une fonction de protection - Google Patents

Dispositif de communication et dispositif électronique dotés d'une fonction de protection Download PDF

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Publication number
WO2017176064A1
WO2017176064A1 PCT/KR2017/003768 KR2017003768W WO2017176064A1 WO 2017176064 A1 WO2017176064 A1 WO 2017176064A1 KR 2017003768 W KR2017003768 W KR 2017003768W WO 2017176064 A1 WO2017176064 A1 WO 2017176064A1
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WIPO (PCT)
Prior art keywords
wireless power
communication
circuit
signal
communication circuit
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Application number
PCT/KR2017/003768
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English (en)
Korean (ko)
Inventor
이준
황종태
신현익
진기웅
Original Assignee
주식회사 맵스
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160073753A external-priority patent/KR101846953B1/ko
Application filed by 주식회사 맵스 filed Critical 주식회사 맵스
Priority to US16/092,278 priority Critical patent/US20200274394A1/en
Priority to CN201780026200.6A priority patent/CN109247041A/zh
Publication of WO2017176064A1 publication Critical patent/WO2017176064A1/fr

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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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • 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
    • 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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields

Definitions

  • the present invention relates to wireless transmission and reception techniques.
  • Short-range communication modules that communicate by forming a magnetic field in a frequency band of several tens to several MHz are referred to as radio frequency identification (RFID), and near field communication (NFC). It is applied to a module such as).
  • RFID radio frequency identification
  • NFC near field communication
  • various applications using the NFC method is applied to a portable terminal such as a mobile phone, has been in the spotlight as an auxiliary payment means.
  • WPC Wireless Power Consortium
  • PMA Power Matters Alliance
  • A4WP Alliance for Wireless Power
  • A4WP uses the 6.78MHz ISM band, which is quite close to the 13.56MHz frequency band of NFC, thus providing A4WP power.
  • the power from the transmitter (Power Transmitting Unit: PTU) is undesirably supplied to the NFC module through the NFC antenna.
  • PTU Power Transmitting Unit
  • the NFC module transmits and receives low power, when a large amount of power is supplied from the A4WP power transmitter, excessive power may be supplied to the NFC module, thereby destroying the NFC module.
  • the operating frequency is in a significantly different band, such as the WPC, PMA, communication circuits such as NFC can be destroyed when the power transmission power is increased.
  • a communication device and an electronic device having a protection function for protecting against wireless charging are proposed.
  • a communication device may detect whether a signal is a wireless power signal to be transmitted and received, a communication circuit selectively connected to the transceiver, and a wireless power signal input for charging, and selectively transmit the communication circuit to the transceiver. And a wireless power input detector that protects the communication circuit from the wireless power signal by generating a control signal for disconnection.
  • the transmission / reception element may be an antenna or an inductive element that generates a field or transmits and receives a signal in response to the field.
  • the communication circuit may include a short range wireless communication circuit or a magnetic secure transmission circuit.
  • the communication device may further include a protection circuit for selectively connecting or disconnecting the communication circuit to the transmission / reception element.
  • a protection circuit for selectively connecting or disconnecting the communication circuit to the transmission / reception element.
  • the circuit can be protected from wireless power signals.
  • the protection circuit may include a switching device that receives a control signal from a wireless power input detector and is turned on by the control signal.
  • the communication device may further include a frequency detector for detecting a frequency of a signal input to the communication circuit and generating a control signal for selectively disconnecting the communication circuit from the transmitting and receiving element if the detected frequency is a frequency for wireless charging.
  • the communication device may further include a logic circuit that receives the control signal of the wireless power input detector and the control signal of the frequency detector and logically calculates the control signal to generate a control signal.
  • the communication device may further include an impedance element connected between the transmission and reception element and the communication circuit to change the resonance frequency of the communication circuit.
  • Each impedance element may be any one or a combination of resistors, inductors, and capacitors.
  • the communication circuit includes a rectifier, and the wireless power input detector may be connected to the input of the rectifier.
  • the communication device may further include a wireless power receiver that receives a wireless power signal from among signals received from the transceiving device and includes a wireless power input detector.
  • a communication device includes a communication circuit, at least one wireless power receiver, at least one wired power receiver, a power selector connected to each power receiver to select a power input, and a power selector of the power selector. And a wireless power input detector for detecting a wireless power signal inputted by the wireless power signal and generating a control signal for blocking transmission of the wireless power signal to the communication circuit.
  • the communication device may further include a protection circuit which receives the control signal from the wireless power input detector and selectively disconnects the communication circuit from the transmission / reception element.
  • a communication device includes a communication circuit, at least one wireless power receiver, at least one wired power receiver, and a respective power receiver to select a power input and charge a load by an input power source. And a wireless power input detector for detecting a wireless power signal input by selecting a power source of the charging circuit and generating a control signal for blocking transmission of the wireless power signal to the communication circuit.
  • the communication device may further include a protection circuit which receives the control signal from the wireless power input detector and selectively disconnects the communication circuit from the transmission / reception element.
  • an electronic device detects a wireless power signal input through a communication circuit, a charging communication terminal connected to a dongle device, and a connection between a charging communication terminal and a dongle device and communicates when a wireless power signal is detected.
  • a processor including a wireless power input detector for generating a control signal to block transmission of the wireless power signal to the circuit.
  • the electronic device may further include a protection circuit which receives the control signal from the wireless power input detector and selectively disconnects the communication circuit from the transmission / reception element.
  • the processor may receive an operation performance setting of the electronic device including wireless charging and communication circuit protection from the application, generate a wireless power input detection signal, and provide operation status information and performance results for monitoring to the application.
  • the communication device can be protected from wireless charging.
  • a communication circuit of a communication device using an antenna or an inductive element, such as an NFC device or a magnetic secure transmission (MST) device, from an excessive supply of energy by an externally applied field.
  • MST magnetic secure transmission
  • a frequency band of a wireless charging system for transmitting and receiving wireless power signals and a frequency band of a communication device are relatively close to each other, or even when the frequency bands are very different, they are exposed to an excessive magnetic field generated by an increase in transmission power for wireless charging. It can be applied to protect the communication device from the wireless charging system.
  • the communication circuit may be protected by using a selection function of a power selector or an input selection function of a charging circuit.
  • the communication circuit may be protected by recognizing a wireless power signal input using communication between the electronic device and the dongle device.
  • FIG. 1 is a block diagram illustrating a relationship between a power transmitter (PTU), a power receiver (PRU), and a communication device according to an embodiment of the present invention
  • FIG. 2 is a circuit diagram illustrating a situation in which an NFC device is placed on an A4WP power transmitter that supplies power at a frequency of 6.78 MHz.
  • 3 is a circuit diagram for measuring the power received by the NFC antenna
  • FIG. 4 is a waveform diagram illustrating a result of measuring voltage and current of an NFC antenna in the power measurement situation of FIG. 3;
  • FIG. 5 is a reference diagram showing an image taken by a thermal imaging camera while placing a mobile phone equipped with a credit card (credit card) and the A4WP power receiver equipped with an NFC chip on the A4WP power transmitter,
  • FIG. 6 is a circuit diagram of a communication device protecting a communication circuit according to a first embodiment of the present invention
  • FIG. 7 is a circuit diagram of a communication device protecting a communication circuit according to a second embodiment of the present invention.
  • FIG. 8 is a circuit diagram of a communication device protecting a communication circuit according to a third embodiment of the present invention.
  • FIG. 9 is a block diagram of a communication device for protecting a communication circuit according to a first embodiment of the present invention.
  • FIG. 10 is a block diagram of a communication device for protecting a communication circuit according to a second embodiment of the present invention.
  • FIG. 11 is a block diagram of a communication device for protecting a communication circuit according to a third embodiment of the present invention.
  • FIG. 12 is a configuration diagram of an electronic device for protecting a communication circuit according to a first embodiment of the present disclosure
  • FIG. 13 is a configuration diagram of an electronic device for protecting a communication circuit according to a second embodiment of the present disclosure.
  • Combinations of each block of the block diagrams and respective steps of the flowcharts may be performed by computer program instructions (executable engines), which may be executed on a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment.
  • instructions executed through a processor of a computer or other programmable data processing equipment create means for performing the functions described in each block of the block diagram or in each step of the flowchart.
  • These computer program instructions may also be stored in a computer usable or computer readable memory that can be directed to a computer or other programmable data processing equipment to implement functionality in a particular manner, and thus the computer usable or computer readable memory.
  • the instructions stored therein may also produce an article of manufacture containing instruction means for performing the functions described in each block of the block diagram or in each step of the flowchart.
  • Computer program instructions can also be mounted on a computer or other programmable data processing equipment, such that a series of operating steps can be performed on the computer or other programmable data processing equipment to create a computer-implemented process that can be executed by the computer or other programmable data. Instructions for performing data processing equipment may also provide steps for performing the functions described in each block of the block diagram and in each step of the flowchart.
  • each block or step may represent a portion of a module, segment or code that includes one or more executable instructions for executing specific logical functions, and in some alternative embodiments referred to in blocks or steps It should be noted that the functions may occur out of order. For example, the two blocks or steps shown in succession may, in fact, be performed substantially concurrently, or the blocks or steps may be performed in the reverse order of the corresponding function, as required.
  • FIG. 1 is a diagram illustrating a relationship between a power transmitter (PTU), a power receiver (PRU) and a communication device according to an embodiment of the present invention.
  • PTU power transmitter
  • PRU power receiver
  • the power transmitter 1 wirelessly supplies a power signal to the power receiver 3 to perform wireless charging.
  • the communication device 2 is a device for transmitting and receiving a communication signal with an external device, may be a wireless communication device.
  • the communication device may be a near field communication (NFC) device or a radio frequency identification (RFID) device.
  • the communication device 2 may be a magnetic secure transmission (MST) device.
  • the NFC device performs near field communication in a frequency band of several to several tens of MHz, for example, may transmit and receive a radio signal in the 13.56 MHz frequency band.
  • MST device For example, when a smart phone inserted in a device containing credit card information is placed on a credit card payment terminal, the terminal automatically reads the credit card information so that payment can be made automatically. Since the information of the magnetic credit card is transmitted wirelessly, there is no need to use a near field communication (NFC) method.
  • NFC near field communication
  • the communication device 2 transmits and receives a signal using any one or at least two combinations of a magnetic field, an electric field, or an electromagnetic field.
  • a magnetic field an electric field
  • an electromagnetic field an electromagnetic field
  • the communication device 2 may transmit or receive a signal through a transmission / reception element in response to a magnetic field or generating a magnetic field. Examples of transmitting and receiving elements include antennas and inductive elements.
  • the protection device 20 of the communication device 2 protects the communication device 2 from a power signal for wireless charging.
  • the power transmitter 1 and the power receiver 3 may transmit and receive power through magnetic resonance or induction.
  • the protection device 20 protects the communication device 2 from the power signal during wireless charging. In particular, it prevents destruction caused by excessive supply of energy from the outside.
  • the power receiver 3 and the communication device 2 may be separated from each other or may be located in one electronic device.
  • the power receiver 3 may be located in a portable terminal and the communication device 2 may be located in a credit card.
  • the power receiver 3 and the communication device 2 may be located in the portable terminal.
  • the communication device 2 is affected by the power signal transmitted from the power transmitter 1, and the present invention is a technique for protecting the communication device 2 from the influence of this power signal.
  • the power transmitter 1 and the power receiver 3 follow a magnetic resonance method.
  • the power transmitter 1 and the power receiver 3 transmit and receive power using the A4WP method.
  • the A4WP power transmitter supplies power signals to the A4WP power receiver through magnetic resonance in the 6.78 MHz frequency band.
  • the wireless charging method of the present invention is not limited to the A4WP method.
  • the wireless charging is performed in a frequency band different from that of the communication device 2 but does not follow the A4WP method, for example, when the wireless charging is performed at 4 MHz, the protection device 20 is 13.56 MHz frequency band or the like. It is possible to protect the communication device 2 using the pseudo frequency band.
  • the transmission power for wireless charging is increased.
  • it can be applied to protect the communication device 2 from the wireless charging system.
  • it is applied to protect an NFC device, a communication device using a frequency band of 13.56 MHz, from an A4WP wireless charging system using a frequency band of 6.78 MHz.
  • the communication device 2 is limited to the NFC device
  • the power transmitter 1 is limited to the A4WP power transmitter
  • the power receiver 3 is limited to the A4WP power receiver.
  • FIG. 2 is a circuit diagram illustrating a situation in which an NFC device is placed on an A4WP power transmitter that supplies power at a frequency of 6.78 MHz.
  • the NFC device 2-1 includes an NFC antenna 220-1, a resonator 22-1 including capacitors Cs and Cp, and an NFC chip 24-1.
  • NFC is not used, but when the NFC device 2-1 is positioned above the A4WP power transmitter 1-1, the NFC device 2-1 may be applied to a magnetic field supplied by the A4WP power transmitter 1-1.
  • NFC antenna 220-1 is exposed. Looking at NFC and the A4WP operating frequency, the band is distinguished using NFC twice as high, but considerable power may be received even in the NFC antenna 220-1.
  • the A4WP antenna When the A4WP power receiver is mounted in a mobile terminal such as a mobile phone, the A4WP antenna is mainly located at the rear side because the display is located at the front side, and the NFC antenna 220-1 is also mostly located at the rear side. Therefore, even when near field communication using the NFC antenna 220-1 is not performed, the NFC antenna 220-1 is exposed to a magnetic field supplied by the A4WP power transmitter 1-1 during wireless charging, thereby generating a magnetic field. do. Accordingly, a considerable power signal may also be received at the NFC antenna 220-1.
  • FIG. 3 is a circuit diagram for measuring power received by an NFC antenna.
  • FIG. 4 is a waveform diagram illustrating a result of measuring voltage and current of an NFC antenna in the power measurement situation of FIG. 3.
  • the NFC antenna 220-1 receives a voltage of about 2.5 Vpeak, and the current becomes 250 mA peak.
  • the voltage and current of the NFC antenna 220-1 are determined by a function that is affected by the distance and position with the A4WP power transmitter 1-1, the NFC antenna ( 220-1), the result of measuring the voltage and current of the NFC antenna 220-1 in the state without raising the height is as shown in FIG.
  • the maximum output power of the A4WP power transmitter 1-1 is about 15W
  • the transmission power of the A4WP power transmitter 1-1 in the experimental condition is about 10W.
  • the NFC antenna 220-1 also receives power corresponding to 0.3W. This amount of power is not great power for the A4WP power receiver 3-1, but power that can cause big problems in the NFC device.
  • FIG. 5 is a reference diagram illustrating an image captured by a thermal image camera in a state where a credit card equipped with an NFC chip and a mobile phone equipped with an A4WP power receiver are placed on an A4WP power transmitter.
  • the NFC chip 24-1 receives a power and is overheated. If left for a certain time, for example, 10 minutes, the NFC chip 24-1 functioning as an NFC function is destroyed.
  • FIG. 6 is a circuit diagram of a communication device protecting a communication circuit according to a first embodiment of the present invention.
  • the communication device 2 includes a resonator 22, a communication circuit 24, and a protection device 20.
  • the protection device 20 includes a wireless power input detector 200 and may further include a protection circuit 202.
  • the resonator 22 is composed of an antenna 220 and a capacitor Cs 222.
  • Antenna 220 has an inductance component.
  • An inductive element may be located instead of the antenna 220. Transmitting and receiving elements, such as antenna 220 and inductive elements, generate or transmit signals in response to magnetic fields.
  • the antenna 220 may be an NFC antenna.
  • the communication circuit 24 is selectively connected to the antenna 220.
  • the communication circuit 24 receives the input data from the antenna 220 when the antenna 220 receives input data from an external device through a magnetic field during a reception operation. do.
  • the communication circuit 24 provides the output data to the antenna 220, the antenna 220 transmits the output data to the external device through the magnetic field.
  • the connection between the antenna 220 and the communication circuit 24 may be released, which is a case where the antenna 220 receives a wireless power signal, and is made by a control signal of the protection device 20.
  • the communication circuit 24 may be an NFC chip.
  • the communication circuit 24 may be an MST circuit.
  • the communication circuit 24 may include a rectifier 240. The rectifier 240 rectifies the AC signal received from the resonator 22 into a DC signal.
  • the wireless power input detector 200 of the protection device 20 detects whether a signal received through the antenna 220 is a wireless power signal input for charging. In this case, when the wireless power signal is detected, the wireless power input detector 200 generates a control signal for selectively disconnecting the communication circuit 24 from the antenna 220. It is possible to protect the communication circuit 24 from the wireless power signal by the control signal.
  • the signal received through the antenna 220 may be a wireless power signal received from a power transmitter, or may be a communication signal for data communication transmitted by an external device.
  • the wireless power input detector 200 detects a wireless power signal from the signal received through the antenna 220, and if a wireless power signal is detected, the wireless power signal is blocked from being transmitted to the communication circuit 24 The communication circuit 24 is protected from the power signal.
  • the control signal is generated by the wireless power input detector 200, but a control signal may be generated by a controller such as an MCU or a buffer.
  • the protection circuit 202 selectively connects or disconnects the communication circuit 24 to the antenna 220. At this time, the protection circuit 202 selectively disconnects the communication circuit 24 from the antenna 220 when receiving the control signal from the wireless power input detector 200.
  • the protection circuit 202 includes a switching device that receives a control signal from the wireless power input detector 200 and is turned on by the control signal.
  • the protection circuit 202 includes switching elements M1 202-1 and M2 202-2.
  • the first switching element M1 202-1 and the second switching element M2 202-2 each have a control signal whose output is connected to the ground voltage and the antenna 220, and the input is output from the wireless power input detector 200. It is connected to and is turned on by the control signal.
  • the power transmitter and the power receiver transmit and receive a wireless power signal through magnetic resonance, and the communication device 2 wirelessly communicates using a magnetic field at an operating frequency.
  • the antenna 220 generates a magnetic field under the influence of the magnetic field generated by the power transmitter.
  • the wireless power input detection unit 200 protects the communication circuit 24 by blocking the power signal from being supplied to the communication circuit 24 by the magnetic field generated by the antenna 220.
  • the wireless power input detector 200 detects a wireless power signal from a signal input through the antenna 220 or the power receiver.
  • the wireless power signal is distinguished from the signal for data communication.
  • the wireless power input detector 200 determines that the power transmitter is in a wireless charging state by transmitting a power signal to the power receiver.
  • the wireless power input detector 200 applies a control signal for protecting the communication circuit 24 to the protection circuit 202 to block transmission of the power signal from the antenna 220 to the communication circuit 24. .
  • the communication circuit 24 can be protected from wireless charging.
  • the wireless power input detector 200 does not detect the wireless power signal, for example, when the antenna 220 receives a data communication signal from an external device, the protection circuit 202 is turned on. Since the control signal is not applied to the protection circuit 202, the protection circuit 202 is turned off, and the data communication signal input through the antenna 220 is transmitted to the communication circuit 24.
  • the wireless power input detector 200 detects this to generate a control signal and turns on the switching elements M1 202-1 and M2 202-2 through the control signal. Let's do it.
  • the switching elements M1 202-1 and M2 202-2 are turned on, most of the antenna current flows through the switching elements M1 202-1 and M2 202-2, and the antenna current flows through the rectifier ( Since the flow to the communication circuit 24 including the 240 is blocked, the communication circuit 24 can be protected from the wireless power signal. If the wireless power signal is not detected by the wireless power input detector 200, the switching elements M1 202-1 and M2 202-2 are turned off again, and the antenna current is transmitted to the communication circuit 24. .
  • the case where the wireless power signal is not detected by the wireless power input detector 200 includes a case where a data communication signal is transmitted through the antenna 220.
  • FIG. 7 is a circuit diagram of a communication device protecting a communication circuit according to a second embodiment of the present invention.
  • FIG. 7 further includes impedance elements Z1 204-1 and Z2 204-2 in the configuration of FIG. 6.
  • the turn-on resistance of the switching elements M1 202-1 and M2 202-2 is small. In this case, excessive current may be supplied from the antenna 220 to the switching elements M1 202-1 and M2 202-2. Therefore, as shown in FIG. 7, the impedance elements Z1 204-1 and Z2 204-2 are positioned between the antenna 220 and the communication circuit 24 to change the resonant frequency of the resonator 22. Excessive current flows to the switching elements M1 202-1 and M2 202-2 can be suppressed. In this case, when the resonance frequency of the resonator 22 is lower than the frequency input to the antenna 220, the received current may be reduced.
  • the protection device 20 includes a wireless power input detector 200, a switching element M1 202-1, an M2 202-2, an impedance element Z1 204-1, and a Z2 204-2.
  • the first switching element M1 202-1 is connected to the control signal generated by the wireless power input detector 200 and the output is connected to the ground voltage and the impedance element Z1 204-1, respectively.
  • the second switching element M2 202-2 is connected to the ground voltage and the impedance element Z2 204-2, respectively, and the input is connected to the control signal generated from the wireless power input detector 200 and turned on by the control signal.
  • Impedance elements Z1 5422-1 and Z2 5422-2 limiting the current can be, for example, resistor R, inductor L or capacitor C. Or a combination of at least two or more.
  • resistor R the current of the switching elements M1 202-1 and M2 202-2 can be reduced, but it may be difficult to protect the communication circuit 24 when the antenna reception current is high. Therefore, it is necessary to adjust the resistance R suitably.
  • the resonance frequency of the resonator 22 may be changed to reduce the received energy itself.
  • the capacitor C is connected, the capacitor C is formed between the antenna 220 and the communication circuit 24 to shift the resonant frequency of the resonator 22.
  • FIG. 8 is a circuit diagram of a communication device protecting a communication circuit according to a third embodiment of the present invention.
  • FIG. 8 further includes a frequency detector 206 configuration in the configuration of FIG. 7. In some cases, it is possible to protect the communication circuit 24 by determining whether a specific frequency is applied using the frequency detector 206 which senses the frequency from the rectifier input signal of the communication circuit 24.
  • the protection device 20 includes a wireless power input detector 200, a protection circuit 202, impedance elements 204-1, 204-2, a frequency detector 206, and a logic circuit 208.
  • the wireless power input detector 200 detects a wireless power signal and generates a control signal for protecting the communication circuit 24.
  • the frequency detector 206 detects the frequency of the rectifier input signal input to the rectifier 240 of the communication circuit 24, and if the detected frequency is a frequency for wireless charging, protects the communication circuit 24 by determining it as a wireless charging state.
  • the logic circuit 208 receives the control signal of the wireless power input detector 200 and the control signal of the frequency detector 206 and performs an AND or OR operation on the wireless power input detector 200 to protect the communication circuit 24.
  • Output a control signal.
  • the control signal is transmitted to the protection circuit 202, so that the antenna current is transmitted from the antenna 220 to the protection circuit 202 as the protection circuit 202 is turned on, thereby disconnecting the communication circuit 24 from the wireless power signal. I can protect it.
  • the circuit implementation of FIG. 8 may be possible in a variety of ways.
  • the wireless power input detector 200, the protection circuit 202, the frequency detector 206, and the like may be integrated into the communication circuit 24, and may be implemented as an external circuit of the communication circuit 24 as shown in FIG. 8. It may be.
  • FIG. 9 is a configuration diagram of a communication device for protecting a communication circuit according to a first embodiment of the present invention.
  • the communication apparatus includes a communication circuit 24, a wireless power receiver 310, and a protection circuit 202.
  • the wireless power receiver 310 includes a wireless power input detector 200.
  • Transceiver elements such as antennas and inductance elements are connected to the communication circuit 24.
  • the transceiver device receives a signal, which may be a data communication signal or a wireless power signal.
  • the transmitting and receiving elements are connected with the communication circuit 24.
  • the transceiver element receives a wireless power signal for charging
  • the wireless power receiver 310 receives a wireless power signal input through the transceiver element
  • the wireless power input detector 200 of the wireless power receiver 310 is wireless Detect the power signal.
  • the wireless power input detector 200 generates a control signal for protecting the communication circuit 24.
  • the wireless power input detection unit 200 selectively disconnects the communication circuit 24 from the transceiving device by using the control signal.
  • the wireless power receiver 310 detects and operates an input of a wireless power signal from the outside through the wireless power input detector 200, and simultaneously generates a control signal for protecting the communication circuit 24 to protect the protection circuit.
  • the wireless power receiver 310 is connected to the protection circuit 202, the output of the protection circuit 202 is connected to the transmission and reception element.
  • the transmission / reception element receives the communication data
  • the transmission / reception element is connected to the communication circuit 24 to transmit the communication data to the communication circuit 24.
  • the protection circuit 202 receives a control signal
  • the protection circuit 202 is activated to connect the protection circuit 202 with the transmission / reception element and the transmission / reception element with the communication circuit 24.
  • most of the current does not flow through the communication circuit 24 but the protection circuit 202 by the control signal, so that the communication circuit 24 including the rectifier can be protected from the wireless power.
  • FIG. 10 is a configuration diagram of a communication device for protecting a communication circuit according to a second embodiment of the present invention.
  • the communication apparatus includes at least one wireless power receiver 310, at least one wired power receiver 320, a power selector 5, and a communication circuit 24, and a protection circuit 202. ) May be further included.
  • the power selector 5 may include a wireless power input detector 200.
  • the wireless power receiver 310 wirelessly receives power, and the wired power receiver 320 receives power by wire and supplies the power to each module.
  • the power selector 5 is connected to each of the power receiving circuits 200,..., 300 and selects a predetermined power from among several power inputs. In this case, one or a plurality of input power sources may be selected.
  • the wireless power input detector 200 detects a wireless power signal among signals selected and input by the power selector 5, and generates a control signal for protecting the communication circuit 24 when the wireless power signal is detected.
  • the protection circuit 202 receives a control signal from the wireless power input detector 200 and blocks transmission of the wireless power signal to the communication circuit 24.
  • the communication circuit 24 is selectively disconnected from the transmission / reception element, and the transmission / reception element and the protection circuit 202 are connected.
  • the transmission / reception element includes an antenna or an inductive element that generates or transmits a signal in response to the magnetic field.
  • FIG. 11 is a block diagram of a communication device for protecting a communication circuit according to a third embodiment of the present invention.
  • the communication apparatus includes at least one wireless power receiver 310, at least one wired power receiver 320, a charging circuit 6 and a communication circuit 24, and a protection circuit 202. ) May be further included.
  • the charging circuit 6 may include a wireless power input detector 200.
  • the charging circuit 6 may be selected or selected by the charging circuit 6 according to each input power source.
  • the recognition function detects the presence or absence of wireless power and generates a control signal for protecting the communication circuit 24.
  • the charging circuit 6 is connected to each of the power receiving circuits 200,..., 300 to select a power input to charge the load.
  • the wireless power input detector 200 in the charging circuit 6 detects the wireless power signal input by the power selection of the charging circuit 6 to block the transmission of the wireless power signal to the communication circuit 24. Generate a control signal.
  • the protection circuit 202 receives the control signal from the wireless power input detector 200 and blocks the wireless power signal from being transmitted to the communication circuit 24.
  • the communication circuit 24 is selectively disconnected from the transmission / reception element, and the transmission / reception element and the protection circuit 202 are connected.
  • the transmission / reception element includes an antenna or an inductive element that generates or transmits a signal in response to the magnetic field.
  • FIG. 12 is a configuration diagram of an electronic device for protecting a communication circuit according to a first embodiment of the present disclosure.
  • the electronic device 8 may include a dual purpose communication terminal 80, a processor 82, and a communication circuit 24, and may further include a protection circuit 202.
  • the processor 82 may include a wireless power input detector 200.
  • the electronic device may be, for example, a smart device.
  • the dual purpose communication terminal 80 receives a wireless power signal for charging or transmits and receives a signal for data communication.
  • the dual purpose communication terminal 80 may be USB or Lightning.
  • the electronic device 8 may connect the dongle device 7 to the dual communication terminal 80 for charging or data communication.
  • the processor 82 may include a wireless power input detector 200, and the processor 82 may be an MCU or an application processor.
  • the wireless power input detector 200 uses the wireless device to communicate with the electronic device 8 and the dongle device 7.
  • the communication circuit 24 can be protected by detecting a signal input.
  • the dongle device 7 When the dongle device 7 is connected to the dual purpose communication terminal 80, a signal is input through the dual purpose communication terminal 80, and the wireless power input detector 200 of the processor 82 receives wireless power among the input signals. The signal is detected, and the detection of the wireless power signal input generates a control signal for protecting the communication circuit 24.
  • the control signal is applied to the protection circuit 202, the protection circuit 202 may block the transmission of the wireless power signal to the communication circuit 24.
  • the communication circuit 24 is selectively disconnected from the transmission / reception element, and the transmission / reception element and the protection circuit 202 are connected. As a result, most of the current does not flow through the communication circuit 24, but flows through the protection circuit 202, thereby protecting the communication circuit 24 including the rectifier from wireless power.
  • FIG. 13 is a configuration diagram of an electronic device for protecting a communication circuit according to a second embodiment of the present disclosure.
  • FIG. 13 further includes software 84 in the configuration of FIG. 12.
  • the operation of the electronic device 8 including wireless charging and communication circuit protection may be set according to a command by the setting of software 84 such as an application.
  • a control signal for protecting the communication circuit 24 can be generated using the setting of the software 84.
  • the processor 82 may receive a setting for wireless charging and protecting a communication circuit from the software 84 to generate a wireless power input detection signal, and transmit operation state information or performance result for monitoring to the software 84. Can provide.
  • the software 84 may be installed or downloaded as shown in FIG. 13 and located in the electronic device 8, and may be located externally so that the electronic device 8 may access the web through the Internet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Near-Field Transmission Systems (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Telephone Function (AREA)

Abstract

L'invention concerne un dispositif de communication et un dispositif électronique dotés d'une fonction de protection. Un dispositif de communication selon un mode de réalisation comprend : un élément d'émission/réception permettant d'émettre/recevoir un signal ; un circuit de communication sélectivement connecté à l'élément d'émission/réception ; et un détecteur d'entrée de puissance sans fil permettant de détecter si un signal est un signal de puissance sans fil devant être entré pour une charge, et de protéger le circuit de communication du signal de puissance sans fil en fonction de la génération d'un signal de commande pour déconnecter sélectivement le circuit de communication de l'élément d'émission/réception.
PCT/KR2017/003768 2016-04-06 2017-04-06 Dispositif de communication et dispositif électronique dotés d'une fonction de protection WO2017176064A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/092,278 US20200274394A1 (en) 2016-04-06 2017-04-06 Communication device and electronic device having protective function
CN201780026200.6A CN109247041A (zh) 2016-04-06 2017-04-06 具有保护功能的通信设备和电子设备

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20160042329 2016-04-06
KR10-2016-0042329 2016-04-06
KR10-2016-0073753 2016-06-14
KR1020160073753A KR101846953B1 (ko) 2016-04-06 2016-06-14 보호 기능을 가진 통신장치 및 전자장치

Publications (1)

Publication Number Publication Date
WO2017176064A1 true WO2017176064A1 (fr) 2017-10-12

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PCT/KR2017/003768 WO2017176064A1 (fr) 2016-04-06 2017-04-06 Dispositif de communication et dispositif électronique dotés d'une fonction de protection

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Cited By (1)

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CN108923121A (zh) * 2018-05-23 2018-11-30 深圳市海德门电子有限公司 Nfc和无线充电二合一天线装置及模块与使用方法

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JP2012135127A (ja) * 2010-12-22 2012-07-12 Panasonic Corp 無線電力伝送システム、それに用いられる送電機器および受電機器、ならびに無線電力伝送方法
JP2014103778A (ja) * 2012-11-20 2014-06-05 Mitsubishi Electric Engineering Co Ltd 無線電力伝送による伝送システム及び送信側伝送装置
JP2014226019A (ja) * 2013-04-23 2014-12-04 Ｎｅｃトーキン株式会社 非接触電力伝送装置
KR20150134307A (ko) * 2013-03-28 2015-12-01 엔이씨 도낀 가부시끼가이샤 비접촉 전력 전송 장치
KR101574322B1 (ko) * 2014-12-16 2015-12-04 주식회사 아이엠텍 휴대 단말기용 무선통신 다중 안테나

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Publication number Priority date Publication date Assignee Title
JP2012135127A (ja) * 2010-12-22 2012-07-12 Panasonic Corp 無線電力伝送システム、それに用いられる送電機器および受電機器、ならびに無線電力伝送方法
JP2014103778A (ja) * 2012-11-20 2014-06-05 Mitsubishi Electric Engineering Co Ltd 無線電力伝送による伝送システム及び送信側伝送装置
KR20150134307A (ko) * 2013-03-28 2015-12-01 엔이씨 도낀 가부시끼가이샤 비접촉 전력 전송 장치
JP2014226019A (ja) * 2013-04-23 2014-12-04 Ｎｅｃトーキン株式会社 非接触電力伝送装置
KR101574322B1 (ko) * 2014-12-16 2015-12-04 주식회사 아이엠텍 휴대 단말기용 무선통신 다중 안테나

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108923121A (zh) * 2018-05-23 2018-11-30 深圳市海德门电子有限公司 Nfc和无线充电二合一天线装置及模块与使用方法

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