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:
Jun. 03, 2003
Filed:
Jan. 23, 2002
Mitsuru Matsukawa, Kyoto, JP;
Nobuhiro Kurio, Kyoto, JP;
Hitoshi Nakagaki, Kyoto, JP;
Takaya Hasebe, Kyoto, JP;
Nissin Electric Co., Ltd., Kyoto, JP;
Abstract
A DC—DC converter has converter circuit portions and transformers Tr and Tr , and rectifier circuit portions and Two sets of converter circuit portions and respectively include two pairs of switching elements Q to Q , and two pairs of switching elements Q to Q connected in full bridge configuration, series capacitors C and C are inserted and connected between the converter circuit portions and and the transformers Tr and Tr respectively. The switching phase of one switching element Q or Q is shifted by a 1/3n period from the switching phase of the other switching element Q or Q in the pair of switching elements. The switching phases of corresponding switching elements Q and Q in the converter circuit portions and are shifted by a 1/2n period from each other.