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:
Aug. 05, 2008
Filed:
Oct. 27, 2006
Chia-peng Wang, Tu-Cheng, TW;
Yi-cheng Liu, Tu-Cheng, TW;
Chih-chan Ger, Tu-Cheng, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A driving device for driving a light source module () includes an input current limiting circuit () and an inverter (). The input current limiting circuit includes an input current sensing circuit () and a feedback compensation circuit (), for limiting current of an input power signal of the driving device to a predetermined range. The input current sensing circuit is used for sensing a current signal of the input power signal of the driving device. The feedback compensation circuit is connected to the input current sensing circuit, for outputting a compensation signal according to the sensed current signal. The inverter is connected between the input current limiting circuit and the light source module, and includes a feedback circuit (). The feedback circuit is connected to the feedback compensation circuit, for receiving the compensation signal and feeding back current flowing through the light source module.