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:
Dec. 29, 2009
Filed:
Oct. 14, 2008
Hideki Asuke, Niiza, JP;
Hideharu Takano, Niiza, JP;
Masaki Kanazawa, Niiza, JP;
Mamoru Tsuruya, Niiza, JP;
Masayoshi Yamamoto, Matsue, JP;
Hirotaka Hara, Matsue, JP;
Shigeyuki Funabiki, Matsue, JP;
Hideki Asuke, Niiza, JP;
Hideharu Takano, Niiza, JP;
Masaki Kanazawa, Niiza, JP;
Mamoru Tsuruya, Niiza, JP;
Masayoshi Yamamoto, Matsue, JP;
Hirotaka Hara, Matsue, JP;
Shigeyuki Funabiki, Matsue, JP;
Sanken Electric Co., Ltd., Niiza-shi, JP;
Shimane University, Matsue-shi, JP;
Abstract
A bi-directional DC-DC converter includes a first series circuit connected to ends of a first DC power source and including a first winding of a first reactor and a first switch; a second series circuit connected to ends of the first switch and including a second winding of the first reactor, a second reactor, a second switch, a third switch, and a second DC power source; a third series circuit connected to the ends of the first switch and including a fourth switch and the second DC power source; and a control circuit configured to turn on/off the switches and thereby carry out step-up and step-down operations between the first and second DC power sources.