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. 22, 2022
Filed:
Jul. 20, 2020
Applicant:
Fanuc Corporation, Yamanashi, JP;
Inventor:
Koujirou Sakai, Yamanashi-ken, JP;
Assignee:
FANUC CORPORATION, Yamanashi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02M 1/26 (2006.01); H02H 7/12 (2006.01); H02M 7/219 (2006.01); H02M 1/44 (2007.01); H02H 7/125 (2006.01); H02M 1/12 (2006.01);
U.S. Cl.
CPC ...
H02M 7/219 (2013.01); H02M 1/44 (2013.01); H02H 7/125 (2013.01); H02M 1/126 (2013.01); H02M 1/322 (2021.05);
Abstract
A power conversion apparatus includes: a converter including switching elements and configured to convert an AC voltage supplied from an AC power supply through a switch unit into a DC voltage; a filter provided between the switch unit and the converter and including reactors and capacitors, the filter being configured to remove noise; and a control unit configured to discharge electric charge stored in the capacitors by setting the switching elements into an ON state after opening the switch unit.