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:
Mar. 22, 2011
Filed:
Oct. 01, 2010
Takae Shimada, Hitachi, JP;
Yoshihide Takahashi, Odawara, JP;
Kimiaki Taniguchi, Hadano, JP;
Hiroyuki Shoji, Hitachi, JP;
Takae Shimada, Hitachi, JP;
Yoshihide Takahashi, Odawara, JP;
Kimiaki Taniguchi, Hadano, JP;
Hiroyuki Shoji, Hitachi, JP;
Hitachi Computer Peripherals, Co., Ltd., Kanagawa-Ken, JP;
Abstract
A bi-directional DC-DC converter has a transformer for connecting a voltage type full bridge circuit connected to a first power source and a current type switching circuit connected to a second power source. A voltage clamping circuit constructed by switching elements and a clamping capacitor is connected to the current type switching circuit. The converter has a control circuit for cooperatively making switching elements operative so as to control a current flowing in a resonance reactor.