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1. 发明申请

US20180116015A1 LED DRIVER CIRCUIT, LIGHTING ARRANGEMENT AND DRIVING METHOD 审中-公开
公开(公告)号：US20180116015A1
公开(公告)日：2018-04-26
申请号：US15560822
申请日：2016-03-15
申请人： PHILIPS LIGHTING HOLDING B.V.
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.

2. 发明申请

US20170215241A1 LED DRIVER CIRCUIT, LED CIRCUIT AND DRIVE METHOD 审中-公开
公开(公告)号：US20170215241A1
公开(公告)日：2017-07-27
申请号：US15315358
申请日：2015-05-13
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： HUOJUN LONG , AKHILESH SINGH TOMAR , JIE FU , JIANHONG KONG , XIAO SUN
IPC分类号： H05B33/08 , H02M1/08 , H02M1/44 , H02M3/156 , H02M1/42 , H02M1/12
CPC分类号： H05B33/0815 , H02M1/08 , H02M1/12 , H02M1/42 , H02M1/44 , H02M3/156
摘要： A driver circuit, comprising: an input for receiving an input power; an input capacitor (C2) for buffering the input power; a switched mode power converter for supplying a driving current from the buffered input power; a current limiter coupled to the switched mode power converter, wherein the current is configured to control the switched mode power converter to limit the driving current at a driving load limit, wherein the current limiter comprises a controllable switch (Q3) configured to control the switched mode power converter; and a control element (301) configured to sense a variation of the input power, the control element coupled to the controllable switch and adjusting the controllable switch based on the variation of the input power, such that the current limiter is configured to adjust the driving load limit based on the variation of the input power, wherein said control element comprises: a current sensing element (R1) in series in the line between the input capacitor (C2) and the input.

3. 发明申请

US20190068280A1 A CODED LIGHT TRANSMITTER, RECEIVER, TRANSMITTING METHOD AND RECEIVING METHOD 审中-公开
公开(公告)号：US20190068280A1
公开(公告)日：2019-02-28
申请号：US16075291
申请日：2017-01-25
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： JUNHU LIU , LIANG SHI , JIE FU
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.

4. 发明申请

US20170264192A1 SWITCHED CAPACITOR CONVERTER 审中-公开
公开(公告)号：US20170264192A1
公开(公告)日：2017-09-14
申请号：US15504706
申请日：2015-08-10
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： JIANG JUNMIN , JIE FU , SHU XU
IPC分类号： H02M3/07 , H05B33/08
CPC分类号： H02M3/07 , H02M2001/007 , H05B33/0815
摘要： A system comprising: a switched capacitor circuit comprising a plurality of voltage divider circuit stages including a first voltage divider circuit stage coupled to a second voltage divider circuit stage; and a controller configured to supply a clock signal to the first voltage divider circuit stage to provide a first voltage on an output node of the first voltage divider circuit stage during a first half cycle of the clock signal, and a second voltage on said output node during a second half cycle of the clock signal. The second voltage divider circuit stage is configured to charge to an input voltage during a half cycle of the clock signal, and the controller is configured to synchronize charging of the second voltage divider circuit stage to a selected one of (i) the first half cycle of the clock signal, wherein the first voltage is supplied as said input voltage, and (ii) the second half cycle of the clock signal, wherein the second voltage is supplied as said input voltage.

5. 发明申请

US20200037409A1 AC-LED WITH HYBRID LED CHANNELS 审中-公开
公开(公告)号：US20200037409A1
公开(公告)日：2020-01-30
申请号：US15735697
申请日：2016-06-06
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： MARTINUS PETRUS JOSEPH PEETERS , SHU XU , JIE FU , MALGORZATA PERZ , RÉMY CYRILLE BROERSMA , DRAGAN SEKULOVSKI , RENÉ THEODORUS WEGH
IPC分类号： H05B33/08 , H05B33/12 , H01L33/50
摘要： The invention provides a light emitting diode (LED) lighting system (1) comprising a string (ST) including a number of light emitting diode (LED) elements (10) functionally connected with an AC voltage source (20) configured to apply an input voltage (Vi) to said string (ST), wherein the string (ST) comprises a plurality of segments (S1, S2, S3, . . . ), with each segment (S1, S2, S3, . . . ) comprising at least one or more of said light emitting diode (LED) elements (10), wherein the light emitting diode (LED) lighting system (1) is configured to connect a first segment (S1) in the string (ST) between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a first threshold, and to connect the first segment (S1) and a second segment (S2) in the string between and driven by the input voltage (Vi) when said input voltage (Vi) is bigger than a second threshold bigger than said first threshold, wherein each LED element (10) comprises a light emitting diode (100) configured to generate blue LED radiation (101), wherein said first segment (S1) comprises a second photoluminescent material comprising LED element (210), wherein the second photoluminescent material comprising LED element (210) comprises (a) light emitting diode (100) and (b) a second photoluminescent material (230) configured to convert at least part of said LED radiation (101) into second conversion radiation (231) in the visible, and wherein said second photoluminescent material (230) only has a decay time of the second conversion radiation (231) smaller than 1 ms, and said second segment (S2) comprise first photoluminescent material comprising LED elements (110) each comprising (a) light emitting diode (100) and (b) a first photoluminescent material (130) configured to convert at least part of said LED radiation (101) into first conversion radiation (131) in the visible, and wherein said first photoluminescent material (130) only has a decay time of the first conversion radiation (131) in the range of 1-500 ms.

6. 发明申请

US20180352621A1 LED ARRANGEMENT AND LED DRIVING METHOD 审中-公开
公开(公告)号：US20180352621A1
公开(公告)日：2018-12-06
申请号：US15922039
申请日：2018-03-15
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： SHAN WANG , CHUN YANG , ZHI QUAN CHEN , GANG WANG , JIE FU
IPC分类号： H05B33/08 , H05B39/04 , G05F1/10
CPC分类号： H05B33/0815 , F21Y2115/10 , G05F1/10 , H05B33/0812 , H05B33/083 , H05B33/0848 , H05B39/044 , Y02B20/343
摘要： A lighting circuit uses a tapped linear driver architecture in which there are at least two LED types; a first LED type with a first forward voltage, and a second LED type with a second forward voltage at least double the first forward voltage. The first segment of the tapped linear driver comprises more LEDs of the first type than the second type and the last segment comprises more LEDs of the second type than the first type. This arrangement enables a reduction in the number of LEDs needed, but without significantly impacting on the efficiency of the circuit.

7. 发明申请

US20170048937A1 SWITCHED MODE POWER SUPPLY DRIVER INTEGRATED WITH A POWER TRANSMISSION ANTENNA 有权
标题翻译：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
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： GANG WANG , LIANG SHI , PING KIAN BEE , JIE FU , XIAO SUN
IPC分类号： H05B33/08 , H02J50/10 , H02M3/335 , H05B37/02
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。

8. 发明申请

US20190261471A1 SWITCHED MODE POWER SUPPLY DRIVER INTEGRATED WITH A POWER TRANSMISSION ANTENNA 审中-公开
公开(公告)号：US20190261471A1
公开(公告)日：2019-08-22
申请号：US15720520
申请日：2017-09-29
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： GANG WANG , LIANG SHI , PING KIAN BEE , JIE FU , XIAO SUN
IPC分类号： H05B33/08 , H02M3/335 , H02J50/10 , H01F38/14 , H05B37/02
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.

9. 发明申请

US20180302963A1 LED ARRANGEMENT AND LED DRIVING METHOD 审中-公开
公开(公告)号：US20180302963A1
公开(公告)日：2018-10-18
申请号：US15737886
申请日：2016-06-08
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： JIE FU , SHU XU
IPC分类号： H05B33/08
CPC分类号： H05B33/0824 , F21Y2105/12 , F21Y2115/10 , H05B33/0812 , H05B33/083 , H05B33/0845
摘要： An LED arrangement uses a tapped driver driven by a rectified mains input and placed over a light output surface. There are at least first and second groups of LEDs on the light output surface. The total light output density for the LEDs of the second group (which are turned on for less of the mains cycle) per unit area of the light output surface is greater than the total light output density for the LEDs of the first group per unit area of the light output surface. A fraction of a light emitting surface of the second group (16) of LEDs to a second area (20B) of the light output surface occupied in a macro view by the second group (16) of LEDs, is larger than a fraction of a light emitting surface of the first group (14) of LEDs to a first area (20A) of the light output sur face occupied in a macro view by the first group (14) of LEDs. This means the light output density when averaged over time is made more consistent between the two (or more) groups of LEDs.

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