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:
Nov. 19, 2019
Filed:
May. 29, 2017
Applicant:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Inventors:
Keiji Tashiro, Osaka, JP;
Xiaoguang Zheng, Osaka, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 3/155 (2006.01); H01F 27/28 (2006.01); H02M 1/08 (2006.01); H02M 1/14 (2006.01);
U.S. Cl.
CPC ...
H02M 3/1584 (2013.01); H01F 27/28 (2013.01); H02M 1/08 (2013.01); H02M 1/14 (2013.01); H02M 3/155 (2013.01); H02M 2003/1586 (2013.01);
Abstract
Provided is a voltage conversion device including: a voltage conversion circuit having two inductors that are wound around a core and that magnetically cancel each other out, and switching elements that switch current flowing through the respective inductors; and a control unit that alternately turns on and off each of the switching elements. The coupling coefficient of the two inductors is in the range from −0.99 to −0.78.