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. 09, 2010
Filed:
Apr. 10, 2008
Wei-chi Huang, Taipei Hsien, TW;
Chi-hsiung Lee, Taipei Hsien, TW;
Wei-Chi Huang, Taipei Hsien, TW;
Chi-Hsiung Lee, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A light source driving device for driving a light source module (), includes a power stage circuit (), a transformer and resonance circuit (), a current balancing circuit (), a feedback control circuit () and an fault detecting circuit (). The power stage circuit converts received signals to alternating current (AC) signals. The transformer and resonance circuit converts the AC signals to electrical signals. The current balancing circuit balances current flowing through the light source module. The fault detecting circuit comprises a plurality of inputs (a), (a(n=1, 2, 3, . . . , n)) and an output (b). One of inputs is connected to one input of the current balancing circuit, other inputs are connected to outputs of the current balancing circuit, and the output outputs a fault signal. The feedback control circuit is used for controlling output of the power stage circuit.