公开(公告)号：EP3308603A1

公开(公告)日：2018-04-18

申请号：EP16730735.4

申请日：2016-06-06

申请人： Philips Lighting Holding B.V.

发明人： PEETERS, Martinus, Petrus, Joseph ,  XU, Shu ,  FU, Jie ,  PERZ, Malgorzata ,  BROERSMA, Rémy, Cyrille ,  SEKULOVSKI, Dragan ,  WEGH, René, Theodorus

IPC分类号： H05B33/08 ,  C09K11/57 ,  C09K11/77

CPC分类号： H05B33/0824

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.

公开(公告)号：EP3183807B1

公开(公告)日：2018-10-10

申请号：EP15748239.9

申请日：2015-08-10

申请人： Philips Lighting Holding B.V.

发明人： JIANG, Junmin ,  FU, Jie ,  XU, Shu

IPC分类号： H02M3/07

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.

公开(公告)号：EP3311632A1

公开(公告)日：2018-04-25

申请号：EP16732481.3

申请日：2016-06-08

申请人： Philips Lighting Holding B.V.

发明人： FU, Jie ,  XU, Shu

IPC分类号： H05B33/08 ,  F21Y105/10 ,  F21Y105/12

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.

公开(公告)号：EP3183807A1

公开(公告)日：2017-06-28

申请号：EP15748239.9

申请日：2015-08-10

申请人： Philips Lighting Holding B.V.

发明人： JIANG, Junmin ,  FU, Jie ,  XU, Shu

IPC分类号： H02M3/07

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.

摘要翻译： 1。一种系统，包括：开关电容器电路，包括多个分压器电路级，所述多个分压器电路级包括耦合到第二分压器电路级的第一分压器电路级; 以及控制器，被配置为将时钟信号提供给第一分压器电路级以在时钟信号的第一半周期期间在第一分压器电路级的输出节点上提供第一电压，并且在所述输出节点上提供第二电压 在时钟信号的第二个半周期期间。 第二分压器电路级被配置为在时钟信号的半个周期期间充电到输入电压，并且控制器被配置为使第二分压器电路级的充电同步到（i）第一半周期 其中第一电压作为所述输入电压被提供，以及（ii）时钟信号的第二半周期，其中第二电压作为所述输入电压被提供。

公开(公告)号：EP3111726A1

公开(公告)日：2017-01-04

申请号：EP15704546.9

申请日：2015-02-13

申请人： Philips Lighting Holding B.V.

发明人： JIANG, Junmin ,  FU, Jie ,  RADERMACHER, Harald Josef Günther ,  XU, Shu ,  DELOS AYLLÓN, Julià

IPC分类号： H05B33/08 ,  H02M3/07 ,  H02M3/158

CPC分类号： H05B33/0815 ,  H02M3/07 ,  H02M3/158 ,  Y02B20/346

摘要： A system comprising a driver circuit wherein the driver circuit comprises a converter. The system further comprises a controller operable to control a ratio between an input voltage supplied to the driver circuit and a target output voltage to be output from the driver circuit by varying a pulse width modulated signal, and by switching between operating modes of said converter. The controller is configured to determine that the driver circuit is operating in an undesired state caused by a combination of the duty cycle and the operating mode of the converter. The system further comprises a resistance adjustment circuit configured to adjust an equivalent output resistance of the driver circuit in response to the controller determining that the driver circuit is operating in an undesired state.

摘要翻译： 一种包括驱动器电路的系统，其中所述驱动器电路包括转换器。 该系统还包括控制器，其可操作以通过改变脉宽调制信号来控制提供给驱动电路的输入电压与要从驱动电路输出的目标输出电压之间的比例，以及通过在所述转换器的工作模式之间切换。 控制器被配置为确定驱动器电路工作在由转换器的占空比和工作模式的组合引起的不期望的状态。 该系统还包括电阻调节电路，其被配置为响应于控制器确定驱动器电路工作在不期望的状态来调节驱动器电路的等效输出电阻。

公开(公告)号：EP2949182B1

公开(公告)日：2017-06-21

申请号：EP14801955.7

申请日：2014-11-06

申请人： Philips Lighting Holding B.V.

发明人： ZHANG, Xianhui ,  HAVERLAG, Marco ,  FU, Jie ,  LIU, Junhu ,  WANG, Shan ,  XU, Shu ,  DUINE, Peter Alexander ,  GIELEN, Herman Johannes Gertrudis

IPC分类号： H05B33/08 ,  G09G3/34

摘要： A lighting controller and method has light sources which are activated for a respective lighting duration in a repeating non-overlapping sequence. The end of the lighting duration for one light source is detected for triggering the switching on of the next light source in the sequence. This provides non-overlapping control of the light sources and provides an efficient and easy to implement the required controller.

摘要翻译： 照明控制器和方法具有以重复的非重叠序列被激活相应照明持续时间的光源。 检测一个光源的照明持续时间的结束，以触发序列中下一个光源的开启。 这提供了光源的非重叠控制，并且提供了一种高效且易于实现所需的控制器。