WO2011160410A1 - 电子装置及其无线供电***、无线供电方法 - Google Patents
电子装置及其无线供电***、无线供电方法 Download PDFInfo
- Publication number
- WO2011160410A1 WO2011160410A1 PCT/CN2010/080194 CN2010080194W WO2011160410A1 WO 2011160410 A1 WO2011160410 A1 WO 2011160410A1 CN 2010080194 W CN2010080194 W CN 2010080194W WO 2011160410 A1 WO2011160410 A1 WO 2011160410A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- module
- power supply
- wireless power
- power
- transmitting end
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
-
- 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
- H02J50/80—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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
Definitions
- the present invention relates to a wireless power supply technology, and more particularly to a wireless power-operated electronic device and a wireless power supply system and wireless power supply method for use with the electronic device.
- Home electronics such as televisions that draw power from a power source typically need to be accessed by direct contact between conductors. Therefore, when the electronic device uses a power source, for example, an AC power source, a power cord needs to be connected to the power source. However, due to the limitation of the power cord, the placement position of the home electronic device such as a television is limited, which brings a great Inconvenience.
- a wireless power supply technology using magnetic coupling resonance for power transmission which uses non-radiative magnetic coupling, that is, two resonant objects of the same frequency to generate strong mutual coupling, and a single layer coil is used to form a common
- the resonant circuit does not emit electromagnetic waves, reducing energy waste.
- the efficiency is about 40% when the transmission is 2 meters, and the efficiency can be as high as about 90% when the distance is 1 meter. It will be a widely used wireless power supply technology. .
- wireless power supply technology can be applied to various electronic devices, such as home electronic devices such as televisions, it will provide users with great convenience, and can achieve high-efficiency power supply and low electromagnetic interference.
- the wireless power supply mode will effectively solve the problems of messy room wiring, fixed home appliance location, and destruction of the wall of the living room by the socket, providing more convenience for people's lives.
- wireless power supply can also save a lot of copper, plastic, rubber and other materials used for wiring, saving resources, reducing pollution, and low carbon environmental protection.
- the present invention provides a wireless power supply system suitable for an electronic device having a power detection function.
- the present invention also provides an electronic device that is operable in a wireless power mode and has a power detection function.
- the present invention further provides a wireless power supply method suitable for use in an electronic device.
- the present invention provides an electronic device including an internal functional circuit and a wireless power supply system.
- the wireless power supply system includes a wireless power transmitting end, a wireless power receiving end, and a power detecting unit.
- the wireless power transmitting end includes an electrically coupled transmitting end control module and a transmitting end power supply module.
- the wireless power receiving end wirelessly receives power from the transmitting power supply module.
- the power detection unit includes a power detection module, a processor and an alarm module that are electrically coupled in sequence, and the processor is also electrically coupled to the internal function circuit.
- the power detection module detects the power parameter of the wireless power receiving end, and the processor compares the power parameter with the built-in preset range.
- the processor When the power parameter is located in the preset range, the processor outputs the voltage of the wireless power receiving end to the internal The function circuit; when the power parameter of the wireless power receiving end exceeds the preset range, the processor generates a warning signal and outputs the warning signal to the alarm module.
- the power detection unit further includes a control adjustment module electrically coupled to the processor.
- the processor When the power parameter of the wireless power receiving end exceeds a preset range, the processor further generates an adjustment signal, and adjusts the signal.
- the output is sent to the control adjustment module, and the control adjustment module sends a control signal to the transmitting end control module according to the adjustment signal, so that the transmitting end control module controls the transmitting end power supply module to automatically adjust the power supply.
- the transmitting end control module controls the transmitting end power supply module to automatically adjust the power supply mode by adjusting the input current of the transmitting end control module to adjust the resonant frequency of the transmitting coupling coil of the transmitting end control module.
- the transmitting end control module controls the transmitting end power supply module to automatically adjust the power supply power by adjusting the input voltage of the transmitting end control module to adjust the resonant amplitude of the transmitting end control module, but not limited thereto. .
- the alarm module displays a prompt message or a prompt tone when the power supply module of the transmitting end automatically adjusts the power supply.
- the alarm module comprises a display unit, a speech unit or a sum of the two.
- the voice unit of the alarm module is a buzzer.
- the electronic device further includes a backup power source, the backup power source and the internal
- the function circuit and the processor are electrically coupled.
- the processor further generates a power switching signal, and outputs the power switching signal to the transmitting end control module and the standby power source to enable the transmitting
- the end control module turns off the power supply module of the transmitting end and connects to the standby power supply.
- the backup power source is an internal battery of the electronic device or an AC input circuit for commercial power input.
- the invention also provides a wireless power supply system comprising a wireless power transmitting end, a wireless power receiving end and a power detecting unit.
- the wireless power transmitting end includes an electrically coupled transmitting end control module and a transmitting end power supply module.
- the wireless power receiving end wirelessly receives power from the transmitting power supply module.
- the power detection unit includes a power detection module, a processor and an alarm module that are electrically coupled in sequence, and the processor is also electrically coupled to the internal function circuit.
- the power detection module detects the working voltage received from the wireless power receiving end, and the processor compares the working voltage with the built-in preset working voltage range.
- the processor When the working voltage is within the preset working voltage range, the processor will The working voltage is output to the internal function circuit; when the working voltage output by the wireless power receiving end exceeds the preset working voltage range, the processor generates a warning signal and outputs the warning signal to the alarm module.
- the power detection unit further includes a control adjustment module electrically coupled to the processor, and the processor further generates an adjustment signal when the operating voltage output by the wireless power receiving end exceeds the preset operating voltage range. And outputting the adjustment signal to the control adjustment module, and the control adjustment module sends a control signal to the transmitting end control module according to the adjustment signal, so that the transmitting end control module controls the transmitting end power supply module to automatically adjust the power supply.
- the present invention further provides a wireless power supply method, comprising the steps of: a wireless power receiving end and a wireless power transmitting end inductively generating a wireless power; a power detecting unit detecting a power parameter of the wireless power receiving end; and the power parameter
- the preset range is compared.
- the wireless power of the wireless power receiving end is output as an operating voltage to an internal circuit of the electronic device; when the power parameter of the wireless power receiving end exceeds the preset In the range, a warning signal is generated and a warning signal is output to the alarm module.
- the wireless power supply method when the power parameter of the wireless power receiving end exceeds the preset range, the wireless power supply method further includes the steps of: generating an adjustment signal, and outputting the adjustment signal to the control adjustment module, and the control adjustment module And sending a control signal to the transmitting end control module according to the adjusting signal, so that the transmitting end control module controls the transmitting end power supply module to automatically adjust the power supply power.
- the invention detects the power outputted by the wireless power supply system, and automatically adjusts the wireless power output of the wireless power supply system according to the detection result, and simultaneously switches the power mode and issues an alarm message, so that the electronic device can maximize
- the ground works in a normal state, improves the connection stability of the wireless power supply and the electronic device, is beneficial to the normal operation of the electronic device, and achieves an efficient and stable power supply.
- FIG. 1 is a block diagram showing the structure of an electronic device in accordance with a preferred embodiment of the present invention.
- FIG. 2 is a structural diagram of an electronic device according to another preferred embodiment of the present invention.
- BEST MODE FOR CARRYING OUT THE INVENTION The specific embodiments, structures, features and effects of the stereoscopic display device according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.
- FIG. 1 shows a structural block diagram of an electronic device related to a first embodiment of the present invention.
- the electronic device 100 includes an internal circuit 30 in addition to the wireless power supply system 10, and the internal circuit 30 is an internal functional circuit of the electronic device 100, such as an audio and video processing circuit.
- the electronic device 100 is supplied with power from the wireless power supply system 10 and input to the internal circuit 30 of the electronic device 100 to supply the operating voltage to the electronic device 100.
- the electronic device 100 is, for example, a television set, but is not limited thereto.
- the wireless power supply system 10 includes a wireless power transmitting end 11, a wireless power receiving end 12, and a power detecting unit 13.
- the wireless power transmitting end 11 can be connected to the external power source through a plug and a socket.
- the external power source is the commercial power source 20, but the connection mode is not limited in the present invention.
- the wireless power transmitting end 11 includes an electrically coupled transmitting end control module 111 and The emitter power supply module 112.
- the wireless power transmitting end 11 is electrically coupled to the commercial power source 20 to receive the mains voltage, and is processed and transmitted through the transmitting coupling coil (not shown) of the transmitting end power supply module 112 and the wireless power receiving end 12 A receiving coupling coil (not shown) is resonantly coupled to transmit power to the wireless power receiving end 12.
- the wireless power receiving terminal 12 converts the induced voltage receiving the coupled coil into an operating voltage, and further outputs the operating voltage to the internal circuit 30 via the power detecting unit 13.
- the process of converting the induced voltage into the operating voltage by the wireless power receiving terminal 12 includes performing AC-DC voltage conversion, voltage regulation, voltage reduction, etc. on the induced voltage, but none of them limit.
- the power detecting unit 13 includes a power detecting module 131, a processor 132, an alarm module 133, and a control adjusting module 134.
- the power detection module 131, the processor 132, and the alarm module 133 are electrically coupled in sequence.
- the processor 132 is electrically coupled to the control adjustment module 134 and the internal circuit 30.
- the alarm module 133 may further include a display unit (not shown), a speech unit (not shown), or a sum of the two.
- the display unit may be a display screen of the electronic device 100, and the voice unit may be a buzzer.
- the power detection module 131 detects the power parameters (such as operating voltage, current, etc.) of the wireless power receiving end 12, and the processor 132 compares the power parameters with the built-in preset range.
- the power parameter is described by taking a voltage as an example, but the invention is not limited thereto.
- the power detection module 131 detects the operating voltage of the wireless power receiving terminal 12, and the processor 132 compares the operating voltage with the built-in preset operating voltage range. When the operating voltage is within the preset operating voltage range, the processor 132 outputs the operating voltage to the internal circuit 30.
- the processor 132 when the operating voltage output by the wireless power receiving terminal 12 is less than or greater than the voltage value within the preset operating voltage range, the processor 132 generates a warning signal and outputs the warning signal to the alarm module 133. At the same time, the processor 132 generates an adjustment signal and outputs the adjustment signal to the control adjustment module 134.
- the control adjustment module 134 sends a control signal to the wireless power receiving end 12 and the transmitting end control module 111 according to the adjustment signal.
- the transmitting end control module 111 controls the transmitting end power supply module 112 to adjust the power supply.
- the transmitting end control module 111 controls the transmitting end power supply module 112 to adjust the power supply power by adjusting the input current of the transmitting end control module 111 to adjust the transmitting coupling coil of the transmitting end control module 111.
- the resonant frequency, or the input voltage of the transmitting end control module 111 is adjusted to adjust the resonant amplitude of the transmitting end control module 112, but is not limited thereto.
- the transmitting coupling coil of the transmitting end power supply module 112 and the receiving coupling coil of the wireless power receiving end 12 are resonantly coupled after being adjusted, thereby inputting the adjusted operating voltage to the power detecting module 131, thereby realizing automatic adjustment of the wireless power.
- the display unit of the alarm module 133 can display the information of "wireless power automatic adjustment, please wait".
- the information content is not limited thereto.
- the voice unit of the alarm module 133 can emit a predetermined sound to prompt the user.
- the electronic device 100 automatically shuts down.
- the electronic device 200 of the second preferred embodiment of the present invention includes an internal circuit 30 and a backup power source 40 in addition to the wireless power supply system 10, and the backup power source 40 is electrically coupled to the internal circuit 30.
- the electronic device 200 is supplied with power from the wireless power supply system 10 and input to the internal circuit 30 of the electronic device 200 to supply the operating voltage to the electronic device 200.
- the electronic device 100 is, for example, a television set, but is not limited thereto.
- This internal circuit 30 is an internal functional circuit of the electronic device 100, such as an audio and video processing circuit or the like.
- the wireless power supply system 10 includes a wireless power transmitting terminal 11, a wireless power receiving terminal 12, and a power detecting unit 13.
- the wireless power transmitting end 11 can be connected to the commercial power source 20 through a plug and a socket, and the connection manner is not limited in the present invention.
- the wireless power transmitting end 11 includes an electrically coupled transmitting end control module 111 and a transmitting end power supply module 112.
- the wireless power transmitting end 11 is electrically coupled to the commercial power source 20 to receive the commercial power voltage, and is processed and transmitted through the transmitting coupling coil (not shown) of the transmitting end power supply module 112 and the wireless power receiving end 12
- a receiving coupling coil (not shown) is resonantly coupled to transmit power to the wireless power receiving end 12.
- the wireless power receiving terminal 12 converts the induced voltage receiving the coupled coil into an operating voltage, and further outputs the operating voltage to the internal circuit 30 via the power detecting unit 13.
- the process of converting the induced voltage into the operating voltage by the wireless power receiving terminal 12 includes performing AC-DC voltage conversion, voltage regulation, voltage reduction, etc. on the induced voltage, but none of them limit.
- the power detecting unit 13 includes a power detecting module 131, a processor 132, and an alarm module 133 that are electrically coupled in sequence.
- the processor 132 is electrically coupled to the internal circuit 30 and the backup power source 40.
- the alarm module 133 may further include a display unit (not shown), a voice unit (not shown), or a sum of the two.
- the wireless power receiving terminal 12 converts the induced voltage receiving the coupled coil into an operating voltage, and further outputs the operating voltage to the internal circuit 30 via the power detecting unit 13.
- the process of converting the induced voltage into the operating voltage by the wireless power receiving terminal 12 includes performing AC-DC voltage conversion, voltage regulation, voltage reduction, etc. on the induced voltage, but none of them limit.
- the power detecting unit 13 includes a power detecting module 131, a processor 132, an alarm module 133, and a control adjusting module 134.
- the power detection module 131, the processor 132, and the alarm module 133 are electrically coupled in sequence.
- the processor 132 is electrically coupled to the control adjustment module 134 and the internal circuit 30.
- the alarm module 133 may further include a display unit (not shown), a speech unit (not shown), or a sum of the two.
- the display unit may be a display screen of the electronic device 100, and the voice unit may be a buzzer.
- the power detection module 131 detects the operating voltage received from the wireless power receiving terminal 12, and the processor 132 compares the operating voltage with the built-in preset operating voltage range. When the operating voltage is within the predetermined operating voltage range, the processor 132 outputs the operating voltage to the internal circuit 30. On the other hand, when the operating voltage output by the wireless power receiving terminal 12 is less than or greater than the voltage value within the preset operating voltage range, the processor 132 generates a warning signal and outputs the warning signal to the alarm module 133.
- the processor 132 generates a power switching signal, and outputs the power switching signal to the transmitting end control module 111 and the backup power source 40, so that the transmitting end control module 111 turns off the transmitting end power supply module 112, and simultaneously connects the standby power supply 40, that is, switches.
- the backup power source 40 supplies power to the electronic device 200.
- the backup power source 40 is, for example, an internal battery of the electronic device 200 or an AC input circuit for commercial power input. If the backup power source 40 is an internal battery, during this process, the display unit of the alarm module 133 may display a message "Wireless power abnormality, please adjust" to prompt the user to manually adjust the wireless power transmitting end of the wireless power supply system, of course, information The content is not limited to this. Alternatively, the voice unit of the alarm module 133 can issue a predetermined sound to prompt the user.
- the display unit of the alarm module 133 may display a message "Wireless power is abnormal, please turn off” to prompt the user to turn off the electronic device 200.
- the speech unit of the alarm module 133 can also emit a predetermined sound to prompt the user.
- the alarm module can display the message "Wireless power abnormality, please switch power” to prompt the user to manually switch the electronic device 200 to the commercial power supply mode.
- the above-mentioned power abnormality may be caused by a problem of coupling resonance, causing voltage instability or lower than a normal operating voltage, or a sudden change in voltage affected by the environment.
- the above-mentioned alarm module 133 can also include an indicator light, and when the power is abnormal, the alarm is flashed.
- the transmitting end power supply module 112 and the wireless power receiving end 12 of the wireless power feeding system in the embodiment of the present invention are not limited to use the magnetic coupling resonance mode to transmit power, and ⁇ Use other wireless coupling methods (such as electromagnetic induction) to achieve power transmission.
- the invention also provides a wireless power supply method, comprising the steps of: providing a wireless power transmitting end
- the device includes a wirelessly coupled transmitter control module 111 and a transmitter power supply module 111.
- a wireless power receiving terminal 12 is provided to sense wireless power generated by the transmitting power supply module 111.
- a power detecting unit 13 is provided.
- the detecting unit 13 includes a power detecting module 131, a processor 132 and an alarm module 133, which are electrically coupled in sequence, and the power detecting module 13 detects the power parameter of the wireless power receiving end 12, and the processor 132 uses the power parameter and the built-in pre- The range is compared.
- the processor 132 When the power parameter is located in the preset range, the processor 132 outputs the wireless power of the wireless power receiving end 12 as an operating voltage to the internal circuit 30 of the electronic device; when the power of the wireless power receiving end 12 is When the parameter exceeds the preset range, the processor 132 generates a warning signal and outputs the warning signal to the alarm module 133.
- the wireless powering method further includes the steps of: the processor 132 generates an adjustment signal, and outputs the adjustment signal to the control adjustment module 134, and the control adjustment module 134 is configured according to The adjustment signal sends a control signal to the transmitting end control module 111, so that the transmitting end control module 111 controls the transmitting end power supply module 112 to automatically adjust the power supply.
- the embodiment of the present invention detects the power outputted by the wireless power supply system, and automatically adjusts the wireless power output of the wireless power supply system according to the detection result, and simultaneously switches the power mode and issues an alarm message.
- the electronic device can work in a normal state to the maximum extent, improve the connection stability of the wireless power supply and the electronic device, facilitate the normal operation of the electronic device, and achieve an efficient and stable power supply.
- the invention detects the power outputted by the wireless power supply system, and automatically adjusts the wireless power output of the wireless power supply system according to the detection result, and simultaneously switches the power mode and issues an alarm message, so that the electronic device can maximize
- the ground works in a normal state, improves the connection stability of the wireless power supply and the electronic device, is beneficial to the normal operation of the electronic device, and achieves an efficient and stable power supply.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013515670A JP2013529882A (ja) | 2010-06-24 | 2010-12-23 | 電子装置及びその無線給電システム、無線給電方法 |
EP10853548.5A EP2587627A4 (en) | 2010-06-24 | 2010-12-23 | ELECTRONIC DEVICE, AND WIRELESS CORRESPONDING ELECTRIC POWER SYSTEM AND METHOD |
US13/700,887 US20130140900A1 (en) | 2010-06-24 | 2010-12-23 | Electronic Device, Wireless Power Supply System Thereof and Wireless Power Supply Method Thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201010208330.1 | 2010-06-24 | ||
CN2010102083301A CN102299567B (zh) | 2010-06-24 | 2010-06-24 | 电子装置及其无线供电***、无线供电方法 |
Publications (1)
Publication Number | Publication Date |
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WO2011160410A1 true WO2011160410A1 (zh) | 2011-12-29 |
Family
ID=45359805
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2010/080194 WO2011160410A1 (zh) | 2010-06-24 | 2010-12-23 | 电子装置及其无线供电***、无线供电方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130140900A1 (zh) |
EP (1) | EP2587627A4 (zh) |
JP (1) | JP2013529882A (zh) |
CN (1) | CN102299567B (zh) |
WO (1) | WO2011160410A1 (zh) |
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US11837399B2 (en) | 2008-03-17 | 2023-12-05 | Powermat Technologies, Ltd. | Transmission-guard system and method for an inductive power supply |
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JP6067308B2 (ja) * | 2012-10-01 | 2017-01-25 | ローム株式会社 | ワイヤレス受電回路およびそれを用いた電子機器 |
KR20140104617A (ko) * | 2013-02-20 | 2014-08-29 | 삼성전자주식회사 | 서든 파워 오프 가능성 정보를 사용하는 모바일 장치 및 그것의 동작 방법 |
CN104124769B (zh) * | 2013-04-28 | 2019-04-05 | 海尔集团技术研发中心 | 无线供电电源控制***和方法 |
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US11011915B2 (en) | 2016-08-26 | 2021-05-18 | Nucurrent, Inc. | Method of making a wireless connector transmitter module |
CN106849817B (zh) * | 2017-02-06 | 2024-03-08 | 广东威灵电机制造有限公司 | 电机调试装置及基于电机调试装置的电机电压匹配方法 |
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- 2010-12-23 US US13/700,887 patent/US20130140900A1/en not_active Abandoned
- 2010-12-23 EP EP10853548.5A patent/EP2587627A4/en not_active Withdrawn
- 2010-12-23 WO PCT/CN2010/080194 patent/WO2011160410A1/zh active Application Filing
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US11837399B2 (en) | 2008-03-17 | 2023-12-05 | Powermat Technologies, Ltd. | Transmission-guard system and method for an inductive power supply |
US20140252872A1 (en) * | 2008-07-02 | 2014-09-11 | Powermat Technologies, Ltd. | System and method for enabling ongoing inductive power transmission |
US9006937B2 (en) * | 2008-07-02 | 2015-04-14 | Powermat Technologies Ltd. | System and method for enabling ongoing inductive power transmission |
US11387688B2 (en) | 2008-07-02 | 2022-07-12 | Powermat Technologies, Ltd. | System and method for coded communication signals regulating inductive power transmissions |
US11979201B2 (en) | 2008-07-02 | 2024-05-07 | Powermat Technologies Ltd. | System and method for coded communication signals regulating inductive power transmissions |
CN103193175A (zh) * | 2013-04-19 | 2013-07-10 | 邢富平 | 一种绞车授权开启装置 |
Also Published As
Publication number | Publication date |
---|---|
EP2587627A1 (en) | 2013-05-01 |
EP2587627A4 (en) | 2014-05-07 |
CN102299567B (zh) | 2013-11-06 |
JP2013529882A (ja) | 2013-07-22 |
US20130140900A1 (en) | 2013-06-06 |
CN102299567A (zh) | 2011-12-28 |
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