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. 03, 2010
Filed:
Aug. 10, 2005
Hiroshi Usui, Saitama, JP;
Yukihiro Kaminaga, Saitama, JP;
Syohei Osaka, Saitama, JP;
Sanken Electric Co., Ltd., Saitama, JP;
Abstract
A current resonant DC-DC converter of multi-output type is provided which comprises an output-regulatory MOS-FETconnected between a secondary windingof a transformerand a smoothing capacitorin a second rectifying smoother, and an output control circuitfor controlling the on-off operation of output-regulatory MOS-FETbased on voltage Vfrom smoothing capacitorin second rectifying smoother. By turning the on-off operation of output-regulatory MOS-FETin synchronization with switching frequency of first or second MOS-FETs, an ideal cross regulation among respective DC outputs can be obtained, providing the inexpensive converter with simple circuit alteration capable of producing highly stable DC outputs with high power conversion efficiency, high accuracy and less power conversion loss.