公开(公告)号：US20170339763A1

公开(公告)日：2017-11-23

申请号：US15591088

申请日：2017-05-09

Applicant: Lextar Electronics Corporation

Inventor： Jhao-Cyuan HUANG ,  Chien-Nan YEH ,  Chun-Jong CHANG ,  Ching-Piao CHEN ,  Po-Shen CHEN

IPC: H05B33/08 ,  F21V23/00 ,  F21K9/238

CPC classification number: H05B33/0851 ,  F21K9/232 ,  F21K9/238 ,  F21S8/02 ,  F21S8/04 ,  F21V23/005 ,  F21Y2115/10 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0845 ,  Y02B20/343

Abstract: A dimming module includes a triggering circuit, a control signal generating circuit, a voltage converting circuit, and a linear driving circuit. The triggering circuit is configured to control a trigger delay angle of an AC input voltage according to a dimming command, in order to output a first voltage signal correspondingly. The control signal generating circuit is configured to output a control voltage according to the first voltage signal. The voltage converting circuit is configured to output a DC operating voltage having an operating level according to the first voltage signal, and output the DC operating voltage to a lighting module, in which the lighting module includes a light-emitting diode. The linear driving circuit is configured to drive the lighting module according to the control voltage.