公开(公告)号：EP3453231A1

公开(公告)日：2019-03-13

申请号：EP17723243.6

申请日：2017-05-05

申请人： ZKW Group GmbH

发明人： GUTH, Christian

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  B60Q1/04 ,  H02M1/14 ,  H02M3/156 ,  H02M7/06 ,  H05B33/083 ,  H05B33/0845

公开(公告)号：EP2916623B1

公开(公告)日：2018-12-26

申请号：EP13882233.3

申请日：2013-05-31

申请人： Zhejiang Shenghui Lighting Co., Ltd

发明人： WAN, Yehua ,  SHEN, Jinxiang

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0845

摘要： A driver circuit and driving method of an LED lighting device are provided. A driver circuit includes an AC power supply, a dimmer, a transformer, and a dimming control circuit. The dimming control circuit includes a filtering unit, a rectifying unit, a boost converter unit, a voltage feedback control circuit unit, a control-signal conversion unit, and a buck converter unit. A dimming position of the dimmer is defined at point P1. The control-signal conversion unit is introduced to automatically adjust a voltage signal at point P1 into an amount of a current required by the buck converter unit to dynamically balance an input power and an output power such that no flashing or dimming failure phenomena occur to the LED lighting device. When the dimmer is rotated, the voltage of point P1 can change. By control-signal conversion unit, corresponding analog dimming signal is outputted to the buck control unit to alter an amount of current of the buck control unit outputted to the LED lighting device.

公开(公告)号：EP3412116A1

公开(公告)日：2018-12-12

申请号：EP17703851.0

申请日：2017-01-16

申请人： Microsoft Technology Licensing, LLC

发明人： JÄMSÄ, Kai ,  HYPPÖNEN, Pekka ,  WALLIUS, Samuli

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0818 ,  H05B33/0845 ,  H05B33/0851 ,  H05B33/0884

摘要： An apparatus is disclosed in some embodiments. The apparatus comprising; a diode light source having a first terminal and a second terminal, an input configured to receive power form an output of a power supply, an inductor configured to store energy and to provide power for the diode light source, the inductor having a first terminal connected to the first terminal of the diode light source, and a second terminal connected to the second terminal of the diode light source, wherein the diode light source and the inductor are connected in parallel, a switching element configured to control a flow of a current through the inductor.

公开(公告)号：EP3127400B1

公开(公告)日：2018-11-28

申请号：EP15713291.1

申请日：2015-03-13

申请人： Microchip Technology Inc.

发明人： LYNCH, Scott

IPC分类号： H05B33/08 ,  G05F1/56

CPC分类号： H05B33/0845 ,  G05F1/56 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/083 ,  Y02B20/345

摘要： Employed within an LED driver operating from the AC power line, the invention controls both input current and output power. With this regulation circuit, input current appears purely resistive, precisely tracking the input voltage waveshape. At the same time, it provides good line regulation and inherent phase dimmer compatibility, requiring no special circuitry to detect and handle a dimmer.

公开(公告)号：EP3241407B1

公开(公告)日：2018-11-21

申请号：EP15813318.1

申请日：2015-12-11

申请人： Philips Lighting Holding B.V.

发明人： LAI, Bing

IPC分类号： H02M1/08 ,  H02M3/335 ,  H05B37/02 ,  H05B33/08

CPC分类号： H02M1/08 ,  H02M3/33523 ,  H02M3/33553 ,  H05B33/0815 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0851 ,  H05B33/0887 ,  H05B33/089 ,  H05B37/02

摘要： A controllable driver (1) is provided for driving a load. The controllable driver (1) comprises a primary converter (11) and a control circuit (13) isolated from one another by an opto-isolator (18). The controllable driver (11) is isolated from an output load (19) by a magnetically coupled pair of windings (112, 114); wherein said windings are adapted to provide a voltage supply to said output load. A feedback signal from the output load, indicative of a load current flowing in the second winding, is provided to the control circuit by a winding (12) isolated from the first and second windings (112, 114), such that the control circuit (13) remains isolated from the output load. The control circuit also directly receive input control signal without an opto-isolator. The control circuit is also isolated from the switching core (111) of the primary converter (11) via an opto-isolator. Such a controllable driver reduces the likelihood and impact of electromagnetic interference test failures and potential energy surges.

公开(公告)号：EP3044886B1

公开(公告)日：2018-11-14

申请号：EP14843804.7

申请日：2014-09-15

申请人： Cooper Technologies Company

发明人： WALMA, Kenneth Dale ,  ELWELL, Brian

IPC分类号： H04B10/116 ,  G05B15/00

CPC分类号： H04B10/11 ,  H04B10/116 ,  H04B10/40 ,  H04B10/502 ,  H05B33/0818 ,  H05B33/0845 ,  H05B37/0218 ,  H05B37/0227 ,  H05B37/0272

摘要： A processor receives data associated with a device. On the basis of the data associated with the device, the processor modulates a light from the artificial light source at a rate imperceptible to a human eye while detectable by a light sensor device. The modulated light is representative of the data associated with the device. The modulated light is detected, demodulated, and decoded by the light sensor device to retrieve the data associated with the device. Further, the data associated with the device is presented by the light sensor device to a user. In addition, the light sensor device is configured to receive input data from the user and communicate the input data to the processor via a wireless link. The processor is configured to receive the input data from the light sensor device and effect a change in a characteristic of the device based on the received input data.

公开(公告)号：EP3171674B1

公开(公告)日：2018-10-31

申请号：EP15195148.0

申请日：2015-11-18

申请人： Helvar Oy Ab

发明人： Ahola, Jukka

IPC分类号： H05B37/02

CPC分类号： H05B37/0227 ,  H05B33/0845 ,  H05B37/0218 ,  H05B37/0272

摘要： A control device of a luminaire comprises control means (201) for controlling operation of the luminaire, which assumes a certain target lighting level as a response to a triggering local input signal. Through communication means (205) the device is configured to receive indication messages from the other devices. Adaptation means (206) adjusting the operation of the control means (201) in accordance with received indication messages. A relationship strength is determined, pertinent to a particular other device and indicative of regularity at which triggering local input signals have been observed after first receiving an indication message from said other device. The control means (201) are reprogrammed to make the luminaire assume a preparatory lighting level as a response to receiving an indication message from said other device, the preparatory lighting level being dependent on the determined relationship strength.

公开(公告)号：EP3393205A1

公开(公告)日：2018-10-24

申请号：EP17425044.9

申请日：2017-04-21

申请人： Infineon Technologies AG

发明人： Scenini, Andrea

IPC分类号： H05B33/08 ,  G09G3/00

CPC分类号： H05B33/089 ,  G09G3/3426 ,  G09G5/10 ,  G09G2320/0646 ,  G09G2360/18 ,  H05B33/0845 ,  H05B33/0854

摘要： In some examples, a device includes at least two light sources, buffer circuitry configured to receive a bit stream, and driver circuitry configured to receive the bit stream from the buffer circuitry and to drive the at least two light sources based on the bit stream. In some examples, the device also includes monitor circuitry configured to determine a voltage drop across each light source of the at least two light sources and snooping circuitry configured to read, as the buffer circuitry receives the bit stream, a specific bit of the bit stream and to cause the monitor circuitry to determine a voltage drop across the specific light source based on a value of the specific bit.

公开(公告)号：EP3389343A1

公开(公告)日：2018-10-17

申请号：EP17167827.9

申请日：2017-04-24

申请人： Climax Technology Co., Ltd.

发明人： LEE, Pin-Chia ,  CHOU, Yu-Ling ,  LIU, Lung-Shu ,  WANG, Ku-Fang

IPC分类号： H05B37/02

CPC分类号： H05B37/0245 ,  H01L29/7801 ,  H01L29/866 ,  H02M7/06 ,  H05B33/0845 ,  H05B33/0887 ,  H05B37/0272 ,  H05B39/044

摘要： A power harvesting switch circuit includes a main switch and a voltage extractor connected in series between Line wire and switch wire. The main switch includes a first power MOSFET and a second power MOSFET connected in series. The voltage extractor includes a first Zener diode and a second Zener diode connected in series but in opposite directions.

公开(公告)号：EP2161969B1

公开(公告)日：2018-10-17

申请号：EP09169401.8

申请日：2009-09-03

申请人： Chemtron Research LLC

发明人： Lethellier, Patrice

IPC分类号： H05B33/08 ,  H05B37/02

CPC分类号： H05B33/089 ,  H05B33/0806 ,  H05B33/0809 ,  H05B33/0815 ,  H05B33/083 ,  H05B33/0845 ,  H05B37/0227

摘要： An apparatus, method and system are disclosed for supplying power to a load such as a plurality of light emitting diodes. An exemplary apparatus comprises a primary module (515), a first secondary module (520 1 ) couplable to a first load (130 1 ) , and a second secondary module (520 2 ) couplable to a second load (130 2 ). The primary module (515) comprises a transformer having a transformer primary. The first secondary module comprises a first transformer secondary magnetically coupled to the transformer primary, and the second secondary module comprises a second transformer secondary magnetically coupled to the transformer primary, with the second secondary module couplable in series through the first or second load to the first secondary module. When energized by a power source (110), the first secondary module (520 1 ) has a first voltage polarity and is couplable in a series with the first load (130 1 ) configured to have an opposing, second voltage polarity, which substantially offset each other to provide a comparatively low resultant voltage level.