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. 25, 2009
Filed:
Dec. 29, 2006
Chih-chan Ger, Taipei Hsien, TW;
Yi-cheng Liu, Taipei Hsien, TW;
Chen-an Chiang, Taipei Hsien, TW;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A driving device for driving a lamp (L) includes a power stage circuit (), a transformer circuit (), a voltage dividing circuit (), an inrush current sensing circuit (), and a controller circuit (). The power stage circuit converts a received direct current (DC) signal to an alternating current (AC) signal. The transformer circuit is connected to the power stage circuit, for converting the AC signal to an appropriate signal to drive the lamp. The voltage dividing circuit is connected to the transformer circuit, for dividing voltage of the signal output from the transformer circuit. The inrush current sensing circuit is connected to the voltage dividing circuit, for sensing inrush current output from the transformer circuit. The controller circuit is connected to the power stage circuit, for controlling output of the power stage circuit according to output of the inrush current sensing circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile