The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2016
Filed:
Jul. 21, 2014
Sichuan Sunfor Light Co., Ltd., Sichuan, CN;
University of Electronic Science and Technology of China, Sichuan, CN;
Dongming Li, Sichuan, CN;
Mian Yang, Sichuan, CN;
Zhengyong Feng, Sichuan, CN;
Wentao Long, Sichuan, CN;
Ning Ning, Sichuan, CN;
Dejun Yu, Sichuan, CN;
Chunyi Feng, Sichuan, CN;
Yongming Jia, Sichuan, CN;
SICHUAN SUNFOR LIGHT CO., LTD., Sichuan, CN;
UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA, Sichuan, CN;
Abstract
An LED lighting drive circuit supplies power for N groups of LED loads. The LED lighting drive circuit comprises N current paths, N groups of LEDs, and a constant current section. The LED lighting drive circuit enables the current of LED lamps to change in a sinusoidal half-wave form with the utility AC input, and keeps the current a constant effective value.