公开(公告)号：WO2016033420A9

公开(公告)日：2016-05-26

申请号：PCT/US2015047367

申请日：2015-08-28

Applicant: MICROCHIP TECH INC

Inventor： LOMBARDI CARLO ,  REITER ANDREAS ,  THALHEIMER FRANZ ,  ZIEGENHORN FRANK

IPC: H05B33/08

CPC classification number: H05B33/089 ,  B60Q1/0088 ,  B60Q1/34 ,  H05B33/083

Abstract: A light emitting diode (LED) running light comprises a current sink and a plurality of series coupled LED block cells; each of the plurality of LED block cells comprising a LED and a bypass circuit to the current sink, wherein each series coupled LED sequentially turns on (lights) when a voltage source increases by additive voltage increments of at least the turn-on voltage of each LED in the series coupled string until all LEDs are on (lit). The current sink maintains a desired current value through the LEDs and may also be used to provide waveforms for diagnostic and timing purposes

Abstract translation: 发光二极管（LED）行驶灯包括电流吸收器和多个串联耦合的LED块单元; 所述多个LED块单元中的每一个包括发光二极管和至所述电流吸收器的旁路电路，其中，当电压源增加至少各自的导通电压的加合电压增量时，每一串联耦合的LED顺序地导通（点亮） 串联LED中的所有LED都点亮（点亮）。 电流吸收器通过LED维持所需的电流值，也可用于提供用于诊断和定时目的的波形