公开(公告)号：US10172205B2

公开(公告)日：2019-01-01

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: H05B37/00 ,  H05B33/08 ,  F21K9/238 ,  F21V23/00 ,  F21S8/02 ,  F21S8/04 ,  F21K9/232 ,  F21Y115/10

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.