公开(公告)号：EP3305022A1

公开(公告)日：2018-04-11

申请号：EP16725835.9

申请日：2016-05-25

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  ZHANG, Xianhui ,  YANG, Chun

IPC分类号： H05B33/08 ,  H02M3/335

CPC分类号： H05B33/0815 ,  H02M3/33523 ,  H02M2001/0006 ,  H02M2001/0032 ,  Y02B20/347 ,  Y02B70/16

摘要： An LED driver uses a switch mode power supply either to provide a regulated LED current (in a first mode) that connects directly to the LED arrangement or a regulated LED voltage (in a second mode) to an LED output terminal. An auxiliary power supply is either based on an auxiliary secondary side (i.e. an auxiliary secondary side winding) when in the first mode, or it is based on the regulated LED voltage when in the second mode. The LED driver further comprises an input adapted to receive a standby command for the driver, wherein the main controlling unit is adapted to control the driver in the second mode when receiving the standby command for the driver. In this way, the driver has a single shared stage which can operated in a regulated current (i.e. constant current) mode to drive the LED arrangement directly or a regulated voltage (i.e. constant voltage) mode. It can adaptively change between modes to improve the standby power efficiency. When the load is turned on (e.g. a first mode), the driver may function in constant current mode, and when the load is turned off (e.g. a second, standby mode), the driver works in constant voltage mode with the output voltage stepped down so that not sufficient to turn on the LED arrangement to be driven by the driver but enough to provide auxiliary power via the auxiliary power supply, in order to improve the auxiliary power efficiency.

公开(公告)号：EP3058794A1

公开(公告)日：2016-08-24

申请号：EP14793310.5

申请日：2014-10-14

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  RADERMACHER, Harald Josef Günther ,  FU, Jie ,  SUN, Xiao

IPC分类号： H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0812 ,  H05B33/0815

摘要： The invention relates to a drive unit for a lighting element and an operating method for such drive unit and to a lighting element including such drive unit. By selectively providing power to a control unit of the drive unit using different voltages at different stages of the overall drive unit, there is an additional degree of freedom which may be used for improving power efficiency, in particular for reducing standby power consumption, while still meeting specific space and cost constraints.

摘要翻译： 本发明涉及用于照明元件的驱动单元和用于这种驱动单元的操作方法以及包括这种驱动单元的照明元件。 通过使用在整个驱动单元的不同阶段使用不同电压的驱动单元的控制单元选择性地提供电力，存在可用于提高功率效率的附加自由度，特别是用于降低待机功耗，同时仍然 满足具体的空间和成本限制。

公开(公告)号：EP3305022B1

公开(公告)日：2019-01-09

申请号：EP16725835.9

申请日：2016-05-25

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  ZHANG, Xianhui ,  YANG, Chun

IPC分类号： H02M1/00 ,  H02M3/335 ,  H05B33/08

公开(公告)号：EP3342258A1

公开(公告)日：2018-07-04

申请号：EP16801518.8

申请日：2016-11-28

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  CHEN, Zhi, Quan ,  XU, Biwen ,  WANG, Gang, G, ,  WANG, Gang, K,

IPC分类号： H05B37/02 ,  H02J7/00 ,  H04B10/116

CPC分类号： H05B37/0272 ,  H02J7/0024 ,  H04B10/116

摘要： The invention describes a coded light modulation arrangement (1), adapted to be connected between a driver (31) and a LED (3), which coded light modulation arrangement (1) comprises input terminals (10) adapted to connect to the driver (31) and to receive a drive current (IDRIVE), an energy storage arrangement comprising a number of energy storage devices (E1, E2); a data input interface (12) realized to receive a data stream (D), said data stream (D) comprises a sequence of binary symbols comprising a logic high and a logic low; a switch arrangement comprising a number of switches (S1, S2) arranged to connect the energy storage devices (E1, E2) of the energy storage arrangement and to modulate the drive current such that, in a charging switch configuration corresponding to the logic low, a negative modulation current (INEG) is diverted from a drive current (IDRIVE) of the LED (3) to the energy storage arrangement; and, in a discharging switch configuration corresponding to the logic high, a positive modulation current (IPOS) is drawn from the energy storage arrangement and added to the drive current (IDRIVE) of the LED (3); and output terminals (11) adapted to connect to the LED (3) and to provide the modulated drive current directly to the LED (3) to emit the low and high radiant flux level as coded light (Lcoded) to be received by a photosensor of a coded light receiver device. The invention further describes a method of performing coded light modulation for light emitted by a LED (3); a luminaire; and a coded light communication arrangement (5).

公开(公告)号：EP3317956A1

公开(公告)日：2018-05-09

申请号：EP16734609.7

申请日：2016-06-29

申请人： Philips Lighting Holding B.V.

发明人： ZHANG, Xianhui ,  LI, Ken, K ,  CHEN, Zhi, Quan ,  LIU, Junhu ,  LONG, Huojun ,  LI, Ace

IPC分类号： H02M3/156 ,  H05B33/08 ,  H02M1/42

CPC分类号： H02M3/156 ,  H02M1/4225 ,  H02M3/3385 ,  H05B33/0815 ,  H05B37/02 ,  Y02B20/347 ,  Y02B20/348 ,  Y02B70/126

摘要： The invention provides a power converter comprising: an input for receiving input power with a variable nominal mains level, wherein said variable nominal mains level falls within at least 90V to 240V; a main power switch (Q1) driven by the input power, and a control circuit (Q2, Q3) for controlling a control current of the main power switch (Q1), wherein the control circuit in (Q2, Q3) is adapted to sense the level of the input power and draw current from a control terminal of the power switch (Q1) according to the level, and said control circuit is adapted to operate in linear region and increase the drawn current along with the increase of the level throughout the variable nominal mains level of the input power, wherein the control circuit comprises: a Darlington bridge with a first transistor (Q2) and a second transistor (Q3), the first transistor (Q2) with a base terminal connected to a circuit position indicative of the voltage amplitude of the input power, the second transistor (Q3) with a base terminal connected to an emitter terminal of the first transistor (Q2) and a collector terminal connected to the control terminal of the main power switch (Q1) and a collector terminal of the first transistor (Q2); and a resistor network (R3, R7) coupled to the emitter of the second transistor (Q3) for regulating the amplification of the second transistor (Q3) and keep the second transistor (Q3) working at linear region throughout the variable nominal mains level of the input power.

公开(公告)号：EP3058794B1

公开(公告)日：2018-08-29

申请号：EP14793310.5

申请日：2014-10-14

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  RADERMACHER, Harald Josef Günther ,  FU, Jie ,  SUN, Xiao

IPC分类号： H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0812 ,  H05B33/0815

摘要： The invention relates to a drive unit for a lighting element and an operating method for such drive unit and to a lighting element including such drive unit. By selectively providing power to a control unit of the drive unit using different voltages at different stages of the overall drive unit, there is an additional degree of freedom which may be used for improving power efficiency, in particular for reducing standby power consumption, while still meeting specific space and cost constraints.

公开(公告)号：EP3203658A1

公开(公告)日：2017-08-09

申请号：EP17153119.7

申请日：2017-01-25

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  SHI, Liang ,  FU, Jie ,  SUN, Xiao

IPC分类号： H04B10/116

CPC分类号： H04B10/116

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 cacluated in the receiver and used for demodulating.

摘要翻译： 编码光传输和接收电路以及传输和接收方法使用信号来指示编码光传输窗口的开始和结束。 数据在传输窗口期间被调制到当前波形上。 在所述传输窗口期间的每个数据峰值超过传输窗口中的平均电流（其用作判决电平），并且在所述传输窗口期间的每个谷值低于平均电流。 以这种方式，可以产生编码的光输出，其中整体判定电流显着变化，但编码的光信号仍然可以可靠地解码。 平均电平可以在接收机中进行缓冲并用于解调。

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。

公开(公告)号：EP3203658B1

公开(公告)日：2018-10-24

申请号：EP17153119.7

申请日：2017-01-25

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  SHI, Liang ,  FU, Jie ,  SUN, Xiao

IPC分类号： H04B10/116

CPC分类号： H04B10/116

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 cacluated in the receiver and used for demodulating.

公开(公告)号：EP3180965A1

公开(公告)日：2017-06-21

申请号：EP15750384.8

申请日：2015-08-10

申请人： Philips Lighting Holding B.V.

发明人： LIU, Junhu ,  SUN, Xiao ,  WANG, Shan ,  HU, Xinghua

IPC分类号： H05B37/02

CPC分类号： H05B33/0842 ,  H05B33/0815 ,  H05B37/0245 ,  H05B37/0281

摘要： A driver is able to drive an analog interface module or a digital interface module, for example an LED module. A set of output pins is for connection to the module, with the same set of output pins used for an analog interface LED module as for a digital interface LED module. A detecting circuit detects whether the module is an analog module or a digital module, based on a signal at a control pin. The configuration of the driver is then set accordingly using an analog drive signal or using a digital communication interface for the LED module parameter collection. The driver further comprises a first switching circuit (20) for switching a supply voltage (V) to the power supply pin (VCC), and a second switching circuit (30) for coupling a supply voltage (V) to the control pin through a resistor (R6), wherein the detecting circuit (16) is configured to determine that the module is digital when the first switching circuit (20) supplies the supply voltage (V) to the power supply pin and the second switching circuit (30) isolates the supply voltage (V) from the control pin.

摘要翻译： 驱动器能够驱动模拟接口模块或数字接口模块，例如LED模块。 一组输出引脚用于连接模块，与用于模拟接口LED模块的输出引脚相同，用于数字接口LED模块。 检测电路根据控制引脚上的信号检测模块是模拟模块还是数字模块。 随后使用模拟驱动信号或使用数字通信接口来设置驱动器的配置，以用于LED模块参数收集。 所述驱动器还包括用于将电源电压（V）切换到所述电源引脚（VCC）的第一开关电路（20）以及用于将电源电压（V）耦合到所述控制引脚的第二开关电路（30） 其中所述检测电路（16）被配置为当所述第一开关电路（20）将所述电源电压（V）供应到所述电源引脚且所述第二开关电路（30）隔离时确定所述模块是数字电路 来自控制引脚的电源电压（V）。