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    • 10. 发明公开
    • LED MODULE AND METHOD FOR OPERATING A LED MODULE
    • LED-MODUL UND VERFAHREN ZUM BETRIEB EINES LED-MODULS
    • EP3095300A1
    • 2016-11-23
    • EP15700140.5
    • 2015-01-12
    • Tridonic Jennersdorf GmbH
    • BAKK, Istvan
    • H05B33/08
    • H05B33/0854H05B33/0803
    • The present invention relates to an LED module (1) for operating based on ambient light sensing. The LED module (1) comprises a control unit (2) for driving at least one LED. At least one LED is an emitting LED (3) for emitting light, and least one LED is a sensing LED (4) for sensing light and outputting a sensing signal (5) according to the sensed light. Based on the sensing signal (5), the control unit (2) is configured to control a light output of the at least one emitting LED (3) obtained from the at least one sensing LED (4). The present invention relates similarly to a method for operating the LED module (1). In particular, the method may control the light output of the at least one emitting LED (3) with a pulse width modulation, PWM, signal, and obtain or evaluate the sensing signal (5) from the at least one sensing LED (4) only in off-periods of the PWM signal.
    • 本发明涉及一种基于环境光感测操作的LED模块(1)。 LED模块(1)包括用于驱动至少一个LED的控制单元(2)。 至少一个LED是用于发射光的发射LED(3),并且至少一个LED是用于感测光并且根据感测的光输出感测信号(5)的感测LED(4)。 基于感测信号(5),控制单元(2)被配置为控制从至少一个感测LED(4)获得的至少一个发光LED(3)的光输出。 本发明类似于涉及操作LED模块(1)的方法。 特别地,该方法可以利用脉冲宽度调制(PWM)信号来控制至少一个发光LED(3)的光输出,并且从至少一个感测LED(4)获得或评估感测信号(5) 仅在PWM信号的关闭周期内。