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:
Oct. 07, 2014
Filed:
Mar. 20, 2012
Applicants:
Hiroshi Saito, Tokyo, JP;
Yuichi Goto, Hiratsuka, JP;
Inventors:
Hiroshi Saito, Tokyo, JP;
Yuichi Goto, Hiratsuka, JP;
Assignee:
Kabushiki Kaisha Toshiba, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/084 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1588 (2013.01); Y02B 70/1466 (2013.01); H02M 3/1584 (2013.01); H02M 2001/0003 (2013.01);
Abstract
A DC-DC converter has a plurality of DC-DC converting units, a plurality of inductor elements, a plurality of duty detection circuits, and a duty adjustment circuit configured to compare output signals from two detection circuits as each group, and to adjust the duty ratio of the DC-DC converting unit connected to one of the two duty detection circuits based on a result of comparing the output signals so that the duty ratio of the square wave voltage of each group becomes equal.