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. 13, 2016
Filed:
Sep. 26, 2012
Shanghai Yaming Lighting Co., Ltd., Shanghai, CN;
Xiaoliang Xu, Shanghai, CN;
Baoquan Li, Shanghai, CN;
Carnotensis Ludo, Shanghai, CN;
Krijger De Sjef, Shanghai, CN;
SHANGHAI YAMING LIGHTING CO., LTD., Jiading District, Shanghai, CN;
Abstract
The present invention relates to a drive circuit of an light-emitting diode (LED) module, which includes: an LED array including a plurality of parallel groups connected in series; a power supply module for converting an external power supply into a 12V-75V forward voltage that drives each LED in the LED array; and a control module for controlling different gating switches to perform a conduction or cutoff operation according to a detected input voltage. The solution in accordance with the present invention can provide regular AC power for the LED array, without the need of providing an electrolytic capacitor. The present invention further overcomes design defects of a DC solution, optimizes the performance of a bulb, and reduces a manufacturing cost of the bulb. Compared with other lighting technologies, the AC solution reduces a total arrangement cost of the LED.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile