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. 10, 2015
Filed:
May. 16, 2012
Applicants:
Takashi Tanaka, Fukuoka, JP;
Taisuke Katayama, Fukuoka, JP;
Kenji Mitsuda, Fukuoka, JP;
Inventors:
Assignee:
Kabushiki Kaisha Yaskawa Denki, Kitayushu-Shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 7/49 (2007.01); H02M 7/487 (2007.01);
U.S. Cl.
CPC ...
H02M 7/49 (2013.01); H02M 7/487 (2013.01);
Abstract
A power conversion device according to an aspect of an embodiment includes a power conversion unit and a control unit. The power conversion unit includes N (N is an integer number not less than two) power converters that output voltages on the basis of base signals having the same period and phase differences equivalent to ½N of the period of the base signal. The control unit controls the N power converters by using ½ of the period of the base signal as a control period and shifts each of control timings of the N power converters by the ½N of the period of the base signal.