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. 04, 2014
Filed:
Mar. 31, 2010
Somei Nakatomi, Saitama, JP;
Yasuto Watanabe, Saitama, JP;
Keigo Andoh, Wako, JP;
Mitsuaki Hirakawa, Wako, JP;
Somei Nakatomi, Saitama, JP;
Yasuto Watanabe, Saitama, JP;
Keigo Andoh, Wako, JP;
Mitsuaki Hirakawa, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A DC-DC converter includes first and second capacitors connected in series, a switching part, and a control circuit part which includes a voltage difference calculating part for calculating a difference between voltages of the first and second capacitors, a duty ratio controller for controlling duty ratio of on- and OFF-durations to decrease the voltage difference of the first and second capacitors on the basis of the calculated difference. A power supplying system including the DC-DC converter controls balance between first and second capacitors in voltage on the basis of the powering/regenerating discriminating signal.