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. 07, 2021

Filed:

Oct. 25, 2017
Applicant:

Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;

Inventors:

Kazuki Nishimura, Chuo-ku, JP;

Toshihide Nakano, Chuo-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/12 (2006.01); H02M 7/217 (2006.01); H02M 5/458 (2006.01); H02M 7/487 (2007.01); H02M 7/537 (2006.01);
U.S. Cl.
CPC ...
H02M 5/4585 (2013.01); H02H 7/1216 (2013.01); H02M 7/217 (2013.01); H02M 7/487 (2013.01); H02M 7/537 (2013.01);
Abstract

A power conversion device includes a converter, a first capacitor, and a second capacitor. The first capacitor is connected between a DC positive bus and a DC neutral point bus. The second capacitor is connected between the DC neutral point bus and a DC negative bus. The converter includes a diode rectifier connected between an AC power supply and each of the DC positive bus and the DC negative bus, and a first AC switch electrically connected between the AC power supply and the DC neutral point bus. The power conversion device further includes a first fuse electrically connected between the first AC switch and a connection point between the first and second capacitors.


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