公开(公告)号：EP2484179A1

公开(公告)日：2012-08-08

申请号：EP10760773.1

申请日：2010-09-01

申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

发明人： JACOBS, Joseph Hendrik Anna Maria ,  DATTA, Michael

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0845 ,  Y02B20/346 ,  Y02B20/383

摘要： Disclosed are devices and related methods for optimally extending the range of light output of solid-state light sources, particularly at minimum light levels, through a power converter that includes a phase detector, a processing unit and a switch. The phase detector is configured to receive a voltage signal and to detect rising edges of waveforms of the voltage signal. The processing unit is configured to initiate a predetermined shutdown period in response to each detected rising edge. The switch is configured to provide a control signal that deactivates the power converter during the shutdown period, preventing the power converter from providing power to the solid state light unit during the shutdown period.

公开(公告)号：EP2458940A1

公开(公告)日：2012-05-30

申请号：EP12154690.7

申请日：2008-04-30

申请人： Koninklijke Philips Electronics N.V.

发明人： Lys, Ihor, A. ,  Shikh, Igor

IPC分类号： H05B33/08

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： An apparatus and method for a switching power supply (200) for providing power factor correction and an output voltage (32) to at least one LED-based light source (100) via control of a single switch (20), without requiring a voltage regulation feedback control loop associated with the at least one LED-based light source during normal operation of the LED-based light source, is disclosed. At least one controller (360) is coupled to the single switch (20) for controlling the single switch using a fixed off time (FOT) control technique.

摘要翻译： 一种用于经由单个开关（20）的控制向至少一个基于LED的光源（100）提供功率因数校正和输出电压（32）的开关电源（200）的装置和方法，而不需要电压 公开了在基于LED的光源的正常操作期间与至少一个基于LED的光源相关联的调节反馈控制回路。 至少一个控制器（360）耦合到单个开关（20），用于使用固定关闭时间（FOT）控制技术来控制单个开关。

公开(公告)号：EP2458722A1

公开(公告)日：2012-05-30

申请号：EP11181318.4

申请日：2011-09-15

申请人： Samsung LED Co., Ltd.

发明人： Horino, Mamoru

IPC分类号： H02M1/42 ,  H05B33/08

CPC分类号： H02M1/4225 ,  H05B33/0818 ,  Y02B20/346 ,  Y02B70/126

摘要： Provided is an LED driving apparatus capable of improving a power factor through a non-insulation type simplified circuit structure, being adaptable to a triac dimmer, being miniaturized to be economical, and including: a light emitting unit having at least one LED; a rectifier rectifying an alternate current(AC) voltage applied from external power; a power supply unit supplying driving power to the light emitting unit, and having an inductor connected to an output terminal of the light emitting unit; a switch controller receiving a voltage outputted from the rectifier to generate a reference voltage in proportion to the voltage outputted from the rectifier, and comparing the reference voltage with an input voltage generated by detecting a current flowing in the inductor, and controlling an on or off operation of a switch so as to proportion a waveform connecting peaks of the current flowing in the inductor to a waveform represented from the input voltage by turning the switch off at a point of time at which the voltages coincide with each other; and a switch connected to the switch controller to control power inputted from the light emitting unit.

摘要翻译： 提供一种LED驱动装置，其能够通过非绝缘型简化电路结构提高功率因数，适用于三端双向可控硅调光器，其小型化以经济，并且包括：具有至少一个LED的发光单元; 整流整流从外部电源施加的交流（AC）电压; 电源单元，向所述发光单元提供驱动电力，并且具有连接到所述发光单元的输出端子的电感器; 接收从整流器输出的电压的开关控制器，与从整流器输出的电压成比例地产生参考电压，并将参考电压与通过检测在电感器中流动的电流产生的输入电压进行比较，并控制导通或截止 开关的操作，以便将在电感器中流动的电流的峰值连接到由输入电压表示的波形的波形的比例，通过在电压彼此一致的时间点关闭开关; 以及连接到开关控制器以控制从发光单元输入的功率的开关。

公开(公告)号：EP2440020A1

公开(公告)日：2012-04-11

申请号：EP10186908.9

申请日：2010-10-07

申请人： NXP B.V.

发明人： Daniel, Bobby Jacob ,  Langeslag, Wilhelmus

IPC分类号： H05B37/02 ,  H05B39/08

CPC分类号： H05B39/08 ,  H05B33/0815 ,  H05B33/0863 ,  Y02B20/346

摘要： A circuit for a dimmer system is disclosed, in which a phase-cut dimmer output signal is converted to a dimming control level signal. The phase-cut dimmer output signal is used to generated a pulse modulated signal indicative of the duty cycle of the phase cut dimmer output signal, and the pulse modulated signal is directly converted to a piece-wise linear dimming control level signal. By directly converting the pulse modulated signal to a piece-wise linear dimming control level signal, no further processing is necessary to produce a dimming signal which closely resembles the ideal logarithmic response of the human eye.
A corresponding method for a dimmer system is also disclosed, as is a dimmer system.

摘要翻译： 一种用于调光器系统电路是盘游离缺失在其中切相调光器输出信号被转换为的调光控制信号电平。 使用切相调光器输出信号所产生的脉冲调制信号指示的相位的占空比的调光器输出信号，并且将脉冲调制信号被直接转换为分段线性调光控制信号电平。 由脉冲调制信号直接转换为分段线性调光控制信号电平，没有进一步的处理是必要的，以产生非常类似于人眼的理想对数响应的调光信号。 因此，对于调光器系统的相应方法是游离缺失盘，如调光器系统。

公开(公告)号：EP2417839A2

公开(公告)日：2012-02-15

申请号：EP10762555.0

申请日：2010-04-10

申请人： Innosys, Inc.

发明人： SADWICK, Laurence, P. ,  SACKETT, William, B.

IPC分类号： H05B41/392

CPC分类号： H02M3/33515 ,  H03K17/72 ,  H05B33/0815 ,  Y02B20/346 ,  Y10T307/469

摘要： Various apparatuses and methods for starting a thyristor are disclosed herein. For example, some embodiments provide an apparatus for starting a thyristor, the apparatus including a thyristor, a switch, a load connected to the thyristor and the switch, and a controller connected to a control input of the switch. The controller is adapted to operate the switch to apply the load to the thyristor for a predetermined period when power is first applied to the thyristor.

摘要翻译： 本文公开了用于启动晶闸管的各种设备和方法。 例如，一些实施例提供了用于启动晶闸管的装置，该装置包括晶闸管，开关，连接到晶闸管和开关的负载以及连接到开关的控制输入的控制器。 控制器适于操作开关，以在电力首次施加到晶闸管时将负载施加到晶闸管达预定时间段。

公开(公告)号：EP2415329A2

公开(公告)日：2012-02-08

申请号：EP10762030.4

申请日：2010-02-19

申请人： Osram Sylvania Inc.

发明人： MADHANI, Vipin ,  ADAMSKY, Alan

IPC分类号： H05B37/02 ,  G01B11/00

CPC分类号： G01S7/4814 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/0851 ,  Y02B20/346 ,  Y02B20/347

摘要： An optical sensor system having a light source comprising a plurality of series connected light emitting diodes (LEDs). The series connected LEDs may be switched at a predetermined frequency.

公开(公告)号：EP2398126A1

公开(公告)日：2011-12-21

申请号：EP10166155.1

申请日：2010-06-16

申请人： Siemens Schweiz AG

发明人： Schmid, Rolf ,  Diethelm, Bernhard

IPC分类号： H02J9/06 ,  H05B33/08 ,  B61L29/24

CPC分类号： H02J9/06 ,  B61L5/1881 ,  B61L2207/02 ,  H02J9/065 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B20/347

摘要： Für Signalleuchtmittel (LED 1 , LED n ), die bei einer Aktivierung den Begriff HALT oder GEFAHR anzeigen, wird zur sicheren Energieversorgung eine Schaltung mit einer ersten Betriebsfallspeise-Einheit (20) und einer zweiten Hilfsquelle (24) vorgeschlagen. Die zweite Hilfsquelle ist dabei induktiv (T1) an den Signalleuchtmittelstromkreis gekoppelt. Auf diese Weise entfällt die Verwendung von Schaltern im Betrieb in der Rückfallebene.

摘要翻译： 供电单元具有布置在驱动器卡（22）中的用于临时切换用于信号灯（LED1，LEDn）的主电源（20）的开关（F1，Fn）。 信号灯通过发射光来表示风险。 辅助源（24）即交流（AC）源在主源故障期间提供交流电压。 辅助源在信号灯的电路处感应耦合，以经由变压器供应能量，使得所有信号灯被供应能量。

公开(公告)号：EP2064923B1

公开(公告)日：2011-12-21

申请号：EP07826191.4

申请日：2007-08-29

申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

发明人： LOEF, Christoph ,  WENDT, Matthias

IPC分类号： H05B33/08 ,  H02M3/335 ,  H02M3/337

CPC分类号： H02M3/33561 ,  H02M3/337 ,  H05B33/0818 ,  H05B33/0851 ,  Y02B20/346 ,  Y02B70/1433

摘要： The present invention relates to a power supply device for supplying power to a load, preferably a LED, comprising a first circuitry (12) with an inverter unit (24) adapted to provide an AC voltage, preferably a rectangular voltage, and a resonant circuit (30) with a capacitance (32) and an inductance (34), a second circuitry (14) with a rectifier unit (42), a switch (64) and said load (60), said switch being adapted to switch said load on and off, a controller unit (16) adapted to control said switch (64) as to ad- just the power provided to said load (60) without any measurement signal from said pri- mary circuitry (12), and a transformer (18) with a primary side (20) and a secondary side (22), said primary side being connected to said first circuitry (12) and said secondary side (22) being connected to said second circuitry (14), preferably said rectifier, so that said first and second circuitries are galvanically isolated.

公开(公告)号：EP2387865A1

公开(公告)日：2011-11-23

申请号：EP10731932.9

申请日：2010-01-14

申请人： MAG Instrument, Inc.

发明人： WEST, Stacey H.

IPC分类号： H05B37/02

CPC分类号： F21V23/0421 ,  F21L4/005 ,  F21L4/027 ,  F21V23/0414 ,  F21Y2115/10 ,  H05B33/0815 ,  H05B33/0845 ,  H05B37/0209 ,  H05B39/06 ,  Y02B20/346

摘要： A portable lighting device, such as a flashlight, with a mechanical power switch and multiple operating modes is provided. The mechanical power switch is disposed in series with the controller for the lighting device and acts as the user interface to the controller to change modes of operation. Because the mechanical power switch is in series with the controller, the portable lighting device does not consume battery power when the mechanical switch is open. A state machine coupled to the controller is polled by the controller each time it is powered up to determine the operational mode of the lighting device.

公开(公告)号：EP2386190A1

公开(公告)日：2011-11-16

申请号：EP10729060.3

申请日：2010-01-12

申请人： SPA Electrics Pty Ltd

发明人： TUNNICLIFFE, Laurence, Aubrey

IPC分类号： H05B37/02 ,  F21S10/02 ,  G09G3/14

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： An LED driver (10) for driving an array of LEDs (22, 24, 26) from an AC power supply (14) including a plurality of switches (16, 18, 20), each switch acting to selectively enable forward conduction of a different LED (22, 24, 26); and a switch control unit (28) for controlling operation of the plurality of switches (16, 18, 20) so as to switch different, non-overlapping phase angle portions of a same repetitive waveform through each LED (22, 24, 26).