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:
Mar. 28, 2017

Filed:

Apr. 27, 2012
Applicants:

Susumu Okura, Tokyo, JP;

Takashi Ohsawa, Tokyo, JP;

Inventors:

Susumu Okura, Tokyo, JP;

Takashi Ohsawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); B60Q 1/30 (2006.01); B60L 11/18 (2006.01); H02J 5/00 (2016.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); B60L 11/1811 (2013.01); B60Q 1/30 (2013.01); H02J 5/005 (2013.01); H02M 3/33576 (2013.01); B60L 2210/10 (2013.01);
Abstract

A DC/DC converteris configured to allow separation of a primary side constitution unitand a secondary side constitution unitof a transformer. A secondary side switching element FETis provided in the secondary side constitution unit, and controls power supply to a loadby intermitting an output of a secondary winding L. The primary side constitution unitdetects an electrical behavior of the primary side generated by the intermittent operation of the secondary side, and controls the power supplied from the primary winding Lto the secondary winding Lby operating the intermittent operation of the primary side switching element FETsuch that a cycle or duty of the intermittent operation of the secondary side falls within a predetermined range.


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