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:
Jan. 30, 2024

Filed:

Jul. 01, 2019
Applicants:

Mitsubishi Electric Corporation, Tokyo, JP;

Toshiba Mitsubishi-electric Industrial Systems Corporation, Tokyo, JP;

Inventors:

Akito Nakayama, Tokyo, JP;

Taichiro Tsuchiya, Tokyo, JP;

Jumpei Isozaki, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 7/483 (2007.01); H02M 1/08 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 7/4835 (2021.05); H02M 1/08 (2013.01); H02M 1/32 (2013.01); H02M 3/33523 (2013.01); H02M 7/483 (2013.01); H02M 7/4833 (2021.05);
Abstract

A main circuit power supply device includes: a plurality of voltage-division power storage elements connected in series; voltage adjustment circuits for adjusting each of voltages of the plurality of voltage-division power storage elements through mutual transfer of power between the plurality of voltage-division power storage elements; and at least one DC/DC converter which is connected to at least one of the voltage-division power storage elements and supplies a control power source to a main circuit control circuitry to control a main circuit.


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