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:
May. 04, 2021
Filed:
Jan. 10, 2018
Applicant:
Nidec Corporation, Kyoto, JP;
Inventor:
Hiromitsu Ohashi, Kyoto, JP;
Assignee:
NIDEC CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 27/06 (2006.01); H02P 6/182 (2016.01); H02M 7/48 (2007.01); H02P 25/18 (2006.01);
U.S. Cl.
CPC ...
H02P 27/06 (2013.01); H02M 7/48 (2013.01); H02P 25/18 (2013.01);
Abstract
A power conversion device includes a first inverter connected to first ends of m (m is an integer equal to two or more) coil groups, a second inverter connected to second ends of the m coil groups, m−1 separation relay circuits connected between two adjacent coil groups of the m coil groups, m−1 first neutral point relay circuits provided between two adjacent coil groups of the first inverter side of each of the m−1 separation relay circuits, and m−1 second neutral point relay circuits provided between two adjacent coils of the second inverter side of each of the m−1 separation relay circuits.