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:
Dec. 10, 2024

Filed:

Apr. 27, 2020
Applicant:

Tmeic Corporation, Chuo-ku, JP;

Inventors:

Masakazu Okayasu, Tokyo, JP;

Issei Fukasawa, Tokyo, JP;

Masahiro Kinoshita, Tokyo, JP;

Assignee:

TMEIC Corporation, Chuo-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/53 (2006.01); G01R 31/52 (2020.01); H02M 7/5387 (2007.01);
U.S. Cl.
CPC ...
H02M 7/5387 (2013.01); G01R 31/52 (2020.01);
Abstract

An electric power conversion apparatus includes: an electric power conversion circuit that allows a DC terminal to be connected to a DC power source via a DC bus line, and performs at least one of converting DC power of the DC power source into AC power to output, or converting AC power into DC power to output; a DC switch turned on when the electric power conversion circuit performs electric power conversion; an AC switch provided on a side of the AC terminal, and turned on when the electric power conversion circuit performs the electric power conversion; a DC voltmeter that measures a potential at a predetermined portion, on a side of the DC terminal; a ground connection portion that connects the DC bus line and ground potential; and a control circuit connected to the electric power conversion circuit, the DC switch, the AC switch, and the DC voltmeter.


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