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:
Sep. 01, 2015
Filed:
Jun. 20, 2012
Weiming Liao, Shenzhen, CN;
Matthew Man Ho Ku, Irvine, CA (US);
Yue Zheng, Shenzhen, CN;
Lifang Guo, Shenzhen, CN;
Guangyao You, Shenzhen, CN;
Weiming Liao, Shenzhen, CN;
Matthew Man Ho Ku, Irvine, CA (US);
Yue Zheng, Shenzhen, CN;
Lifang Guo, Shenzhen, CN;
Guangyao You, Shenzhen, CN;
FREMONT MICRO DEVICES (SZ) LIMITED, Shenzhen, CN;
Abstract
A LED dimming device, and a LED dimming and a driving circuit using such LED dimming device are discussed. In present embodiment, the LED dimming device multiplexes an inputting switch and/or a sampling module of the LED driving circuit for dimming. such LED dimming device will not affect the sine waves of input current, in such a way, power factor and work efficiency will be increased while the harmonic coefficient and interference signal will be reduced.