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. 20, 2005
Filed:
Oct. 04, 2003
Zhongwei KE, Taoyuan Shien, TW;
Yahong Xiong, Taoyuan Shien, TW;
Bin Jin, Taoyuan Shien, TW;
Alpha J. Zhang, Taoyuan Shien, TW;
Zhongwei Ke, Taoyuan Shien, TW;
Yahong Xiong, Taoyuan Shien, TW;
Bin Jin, Taoyuan Shien, TW;
Alpha J. Zhang, Taoyuan Shien, TW;
Delta Electronics, Inc., Taoyuan, TW;
Abstract
The present invention proposes an improved circuit design and configuration of a DC-DC converter with resonant reset. In this present invention, the active resonant snubber in parallel to a primary winding of a transformer of a DC-DC converter for resetting the transformer includes a resonant capacitor, an active switch connected to the resonant capacitor in series, an auxiliary diode coupled across the active switch in parallel, and an auxiliary winding coupled with the transformer. When a main switch of the DC-DC converter is turned off, the auxiliary winding turns on the active switch, and then the transformer is reset by a resonance between a magnetizing inductor of the transformer and the resonant capacitor.