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公开(公告)号：US20180116015A1
公开(公告)日：2018-04-26
申请号：US15560822
申请日：2016-03-15
发明人： JIE FU , LIANG SHI , XIAO SUN , JIMMY JIANG
IPC分类号： H05B33/08
CPC分类号： H05B33/083 , H05B33/0815 , H05B33/0842 , Y02B20/383
摘要： A first LED driver circuit comprising: a first input interface (30) for receiving an AC power input and providing a first output, wherein said first output is adapted to be connected to a second LED driver circuit; a first LED driver (32) powered by the first output; a first shorting element (36) for shorting the first output; a first control arrangement (38) for controlling the first shorting element wherein the first control arrangement (38) is adapted to close the first shorting element (36) during only one subset of half cycles of the AC power input to short circuit the first LED driver (32) and to prevent the first LED driver (32) from being powered by the AC power input, when the second LED driver circuit is powered by the AC power input complementarily with respect to the unpowered first LED driver (32) and, open the first shorting element (36) during the other subset of half cycles to allow the AC power input to power the first LED driver (32), when the second LED driver circuit is not powered by the AC power input complementarily with respect to the first LED driver (32); wherein the half cycle is the positive amplitude duration or the negative amplitude duration of the AC power input This means two of the LED driver circuits may be used in series, each one is supplies by power or not complementarily based on only one subset of half cycles of the AC power input.
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公开(公告)号：US20200329543A1
公开(公告)日：2020-10-15
申请号：US16305600
申请日：2017-05-19
发明人： LIANG SHI , GANG WANG , WEI HONG ZHAO , PEILIANG DONG
IPC分类号： H05B45/3725 , H05B47/19
摘要： An electronic device is for identifying a LED driver which is a switched mode power supply. For example the LED driver is part of an LED luminaire. An interface (24) is adapted to be coupled to a high frequency power commutation component of the switched mode power supply, for sensing the high frequency power commutation of the switched mode power supply in driving the LED. A mapping is made between identifications of LED drivers which are switched mode power supply and characteristics of the high frequency power commutations in driving the LED of a respective switched mode power supply. Thus, a LED driver which uses a switched mode power supply can be identified corresponding to extracted characteristics of the high frequency power commutations in driving the LED. This identification can be used for energy monitoring and fault diagnosis purposes, for use in a universal low cost LED driver.
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3.发明申请SWITCHED MODE POWER SUPPLY DRIVER INTEGRATED WITH A POWER TRANSMISSION ANTENNA 有权与电力传输天线集成的开关模式电源驱动器公开(公告)号：US20170048937A1
公开(公告)日：2017-02-16
申请号：US15306089
申请日：2015-04-20
发明人： GANG WANG , LIANG SHI , PING KIAN BEE , JIE FU , XIAO SUN
CPC分类号： H05B33/0815 , H01F38/14 , H02J50/10 , H02M3/33507 , H05B37/0227 , H05B37/0272 , Y02B20/346
摘要： A driver comprising a switched mode power supply, wherein said switched mode power supply comprises an existing coil, the driver circuit further comprises: a first power transmission antenna (42) formed as a first coil which is either the existing coil of the switched mode power supply or coupled to the existing coil of the switched mode power supply, said first power transmission antenna (42) is adapted for being magnetically coupled to a second power receiving antenna (44) thereby forming a wireless power transmitter.
摘要翻译： 一种驱动器，包括开关模式电源，其中所述开关模式电源包括现有线圈，所述驱动器电路还包括：形成为第一线圈的第一功率传输天线（42），所述第一线圈是所述开关模式电源的现有线圈 供应或耦合到开关模式电源的现有线圈，所述第一功率传输天线（42）适于磁耦合到第二功率接收天线（44），从而形成无线功率发射器。
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公开(公告)号：US20190200439A1
公开(公告)日：2019-06-27
申请号：US16306661
申请日：2017-05-22
CPC分类号： H05B37/0272 , G06F3/017 , H02J7/35 , H02S40/20 , H05B33/0845 , H05B37/0218 , H05B37/0227 , H05B37/0245 , Y02B20/46
摘要： In various embodiments, an energy harvesting unit (102, 402, 502, 602, 702, 902) may be configured to convert captured light into current. Logic (104, 404, 504, 604, 704, 904) operably coupled with the energy harvesting unit may be configured to detect a current fluctuation at the energy harvesting unit. The current fluctuation may be caused by a corresponding fluctuation in light captured by the energy harvesting unit. The logic may be further configured to determine that the detected current fluctuation matches a predefined current fluctuation pattern associated with deliberate modulation of light captured by the energy harvesting unit. In some embodiments, the logic may generate appliance control data for controlling one or more appliances (120, 130, 132) based on the matching predefined current fluctuation pattern. In some embodiments, the logic may control light output by one or more light sources (960).
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公开(公告)号：US20190068280A1
公开(公告)日：2019-02-28
申请号：US16075291
申请日：2017-01-25
IPC分类号： H04B10/116 , H04B10/516
摘要： A coded light transmission and reception circuit and transmission and reception method use signals to indicate the start and end of a coded light transmission window. Data is modulated onto the current waveform during the transmission window. Each data peak value during said transmission window exceeds an average current in the transmission window (which is used as the decision level) and each valley value during said transmission window is below the average current. In this way, a coded light output can be generated in which the overall decision current varies significantly, but the coded light signal can still be decoded reliably. The average level can be calculated in the receiver and used for demodulating.
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公开(公告)号：US20190261471A1
公开(公告)日：2019-08-22
申请号：US15720520
申请日：2017-09-29
发明人： GANG WANG , LIANG SHI , PING KIAN BEE , JIE FU , XIAO SUN
摘要： A driver comprising a switched mode power supply, wherein said switched mode power supply comprises an existing coil, the driver circuit further comprises: a first power transmission antenna (42) formed as a first coil which is either the existing coil of the switched mode power supply or coupled to the existing coil of the switched mode power supply, said first power transmission antenna (42) is adapted for being magnetically coupled to a second power receiving antenna (44) thereby forming a wireless power transmitter.
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公开(公告)号：US20170318633A1
公开(公告)日：2017-11-02
申请号：US15522722
申请日：2015-11-03
发明人： THEO GERRIT ZIJLMAN , BEREND JAN WILLEM TER WEEME , LIANG SHI , AART JAN VROEGOP , LAMBERTUS ADRIANUS MARINUS DE JONG , JIAN JIANG
CPC分类号： H05B33/089 , H05B33/0845 , H05B37/0272 , Y02B20/341
摘要： The invention describes an LED lighting system (1) comprising a wireless communication arrangement (11, 12) for wireless transfer of signals (D10_11, D11_12, D4_12, D5_12) between devices (10, 11, 12, 4, 5) of the LED lighting system (1); at least one LED lamp (10) connectable to a mains power supply (2), which LED lamp (10) comprises a driver arrangement (100) with a control unit (102) for controlling the LED lamp (10) according to a received signal (D10_11); a phase-cut detector (103A, 103B, 103C) realized to detect a phase-cut input (Vcut) to the LED lamp (10); and a protection circuit (106) realized to prevent operation of the LED lamp (10) with the phase-cut input (Vcut) if the phase-cut angle of the phase-cut input (Vcut) exceeds a critical threshold, wherein said protection circuit (106) is adapted to prevent an exposure of the LED lamp to the phase-cut input. The invention further describes an LED lamp (10) comprising a driver arrangement (100); and a method of controlling an LED lighting system (1).
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