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.

Date of Patent:
May. 29, 2018

Filed:

Mar. 27, 2014
Applicant:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Inventors:

Kensuke Sasaki, Sagamihara, JP;

Daiki Tanaka, Zama, JP;

Yuichi Shibukawa, Yokohama, JP;

Atsuo Kawamura, Yokohama, JP;

Kohei Aoyama, Yokohama, JP;

Assignee:

Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/34 (2007.01); H02M 3/335 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 3/33584 (2013.01); H02M 2001/0035 (2013.01); H02M 2001/0058 (2013.01); Y02B 70/1491 (2013.01); Y02B 70/16 (2013.01);
Abstract

A soft switching system DC-DC converter includes a switching element, a transformer or a reactor, and a controller configured to control a switching operation of the switching element; and carries out the switching operation of the switching element in a state that a voltage or a current to be applied to the switching element is zero. In a case where a required output value of the DC-DC converter is lower than the minimum output over which soft switching is established, the controller controls the operation of the switching element so that an operation period in which an output of the DC-DC converter becomes the minimum output or higher and a stop period in which the output becomes zero are alternately repeated.


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