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:
Jan. 22, 2015
Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;
Bairen Liu, Hangzhou, CN;
Qiming Zhao, Hangzhou, CN;
Licheng Sheng, Hangzhou, CN;
Bo Yu, Hangzhou, CN;
Hongqiang Qin, Hangzhou, CN;
Eric Yang, Saratoga, CA (US);
CHENGDU MONOLITHIC POWER SYSTEMS CO., LTD., Chengdu, CN;
Abstract
A light-emitting element driver system has a power conversion circuit, a second switch and a control circuit, the power conversion circuit has a primary circuit, a transformer, a first rectified circuit and a second rectified circuit, the second rectified circuit provides a first signal, the second switch has a first terminal coupled to an output terminal of the first rectified circuit and a second terminal to provide a second signal, when a dimming signal is in a first state, the control circuit provides a first control signal to control the power conversion circuit based on the first signal, and meanwhile provides a second control signal to control the second switch based on the second signal.