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. 28, 2006
Filed:
Mar. 23, 2004
Hirofumi Dogome, Kasugai, JP;
Takashi Matsumoto, Kasugai, JP;
Kyuichi Takimoto, Kasugai, JP;
Hidekiyo Ozawa, Kasugai, JP;
Chikara Tsuchiya, Kasugai, JP;
Hirofumi Dogome, Kasugai, JP;
Takashi Matsumoto, Kasugai, JP;
Kyuichi Takimoto, Kasugai, JP;
Hidekiyo Ozawa, Kasugai, JP;
Chikara Tsuchiya, Kasugai, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A DC/DC converter enabling an increase in frequency. The DC/DC converter includes a main transistor, a synchronization transistor, a control circuit, which controls the main transistor and the synchronization transistor, and a capacitor, which is charged to generate gate voltage for the main transistor. The control circuit includes a charging time setting circuit for setting the activation time of the main transistor and the synchronization transistor.