公开(公告)号：US09867248B2

公开(公告)日：2018-01-09

申请号：US15361076

申请日：2016-11-25

Applicant: Lextar Electronics Corporation

Inventor： Chien-Nan Yeh ,  Chun-Jong Chang ,  Po-Shen Chen ,  Kai-Hsiang Shih ,  Jhao-Cyuan Huang ,  Ku-Cheng Lin

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/083 ,  H05B33/0857 ,  H05B33/086

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a phase control circuit, a processing circuit and a first driving circuit. The rectifying circuit is configured to convert an input AC voltage to a rectified voltage signal. The phase control circuit is configured to receive the rectified voltage signal and a dimming command, and output a control voltage signal correspondingly in which the phase control circuit controls a phase delay angle of the control voltage signal according to the dimming command. The processing circuit is configured to receive the control voltage signal and adjust a first driving voltage signal according to the phase delay angle. The first driving circuit is configured to receive the first driving voltage signal to drive a first lighting module.

公开(公告)号：US09867241B2

公开(公告)日：2018-01-09

申请号：US15361481

申请日：2016-11-27

Applicant: Lextar Electronics Corporation

Inventor： Chien-Nan Yeh ,  Chun-Jong Chang ,  Po-Shen Chen ,  Kai-Hsiang Shih ,  Jhao-Cyuan Huang ,  Ku-Cheng Lin

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/0818 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0857

Abstract: A dimming module and a solid state lighting device are shown. The dimming module includes a rectifying circuit, a first driving circuit, and a processing circuit. The rectifying circuit is configured to convert an AC voltage to a rectified voltage. The first driving circuit is configured to receive the rectified voltage to provide a first current so as to drive a first lighting module. The first driving circuit includes a first switch. The first switch turns ON or OFF selectively according to a first control voltage signal so as to control the first current. The processing circuit is configured to receive a dimming command, and adjust the first control voltage signal according to the dimming command. The first control voltage signal is configured to control a phase delay angle and a duty cycle of the first current.