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:
Feb. 07, 2017
Filed:
Sep. 02, 2013
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Toshiba Mitsubishi-electric Industrial Systems Corporation, Chuo-ku, JP;
Kimiyuki Koyanagi, Chiyoda-ku, JP;
Takushi Jimichi, Chiyoda-ku, JP;
Satoshi Azuma, Chiyoda-ku, JP;
Yasuhiko Hosokawa, Chuo-ku, JP;
Shinzo Tamai, Chuo-ku, JP;
Sadao Funahashi, Chuo-ku, JP;
Kotaro Higashi, Chuo-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Toshiba Mitsubishi-Electric Industrial Systems Corporation, Chuo-ku, JP;
Abstract
An electric power conversion device includes a plurality of cell converters connected in cascade and including main circuits, drive circuits, and self-feeding devices for supplying power to the drive circuits by being supplied with power from the main circuits. The drive circuit is supplied with power via a first feed line from the self-feeding device in the corresponding cell converter, and supplied with power from the self-feeding device in another cell converter via a second feed line on which an insulation input/output circuit is provided. When the self-feeding device is abnormal, the drive circuit is supplied with power from the self-feeding device in the other cell converter, whereby the electric power conversion device continuously provides a desired output.