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    • 7. 发明申请
    • ILLUMINATION SYSTEM COMPRISING A PLURALITY OF LEDS
    • 包含多个LED的照明系统
    • WO2012069961A1
    • 2012-05-31
    • PCT/IB2011/055099
    • 2011-11-15
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.SEMPEL, Adrianus
    • SEMPEL, Adrianus
    • H05B33/08
    • H05B33/0848H05B33/0827H05B33/0863
    • An illumination system (100)comprises: an LED system (120) comprising two or more LED groups (21, 22, 23, 24; 451, 452) and current distribution means (140), wherein each LED group includes one or more individual LEDs, the LED system (120) having two input terminals (121, 122); a single controllable driver (130) for providing working power to the LED system (120), the driver having two output terminals (131, 132) coupled to the two input terminals (121, 122) of the LED system (120), respectively; a control device (2) for controlling the driver (130); wherein the control device (2) is designed for controlling the driver output voltage (Vi); and wherein the current distribution means are responsive to the input voltage (Vi) at the input terminals of the LED system for drawing current from the driver and distributing the current among the different LED groups in dependence on the input voltage level.
    • 照明系统(100)包括:包括两个或更多个LED组(21,22,23,24; 451,452)和电流分配装置(140)的LED系统(120),其中每个LED组包括一个或多个个体 LED,具有两个输入端(121,122)的LED系统(120); 用于向LED系统(120)提供工作功率的单个可控驱动器(130),所述驱动器具有分别耦合到所述LED系统(120)的两个输入端子(121,122)的两个输出端子(131,132) ; 控制装置(2),用于控制驾驶员(130); 其中所述控制装置(2)被设计成用于控制所述驱动器输出电压(Vi); 并且其中所述电流分布装置响应于所述LED系统的输入端处的输入电压(Vi),用于从所述驱动器引出电流并根据所述输入电压电平分配所述不同LED组中的电​​流。