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:
Apr. 13, 2010
Filed:
Jul. 09, 2007
Shohei Osaka, Saitama, JP;
Shohei Osaka, Saitama, JP;
Sanken Electric Co., Ltd., , JP;
Abstract
A resonant switching power source device is provided which comprises first and second MOS-FETsandconnected in series to a DC power source, a first transformerwhich has a first primary windingconnected in parallel to first or second MOS-FETorand in series to a first capacitor, a first rectifying smootherconnected between a secondary windingof first transformerand first output terminals, a second transformerwhich has a primary windingconnected in parallel to primary windingof first transformer, and a second rectifying smootherand an output-regulatory MOS-FETconnected between a secondary windingin second transformerand second DC output terminalsandto control peak current flowing through primary windings of transformersandand rectifying smoothersandin secondary sides for improvement in power conversion efficiency and to produce stable DC outputs of desired level from a plurality of output terminalsand