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:
Oct. 07, 2025
Filed:
Mar. 11, 2020
Applicant:
Mitsubishi Heavy Industries Thermal Systems, Ltd., Tokyo, JP;
Inventors:
Kyohei Watanabe, Tokyo, JP;
Takayuki Takashige, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/5387 (2007.01); F04D 27/00 (2006.01); H02M 1/32 (2007.01); H02P 27/06 (2006.01);
U.S. Cl.
CPC ...
H02M 7/53871 (2013.01); F04D 27/008 (2013.01); H02M 1/32 (2013.01); H02P 27/06 (2013.01);
Abstract
A control device that includes an electric detection unit which detects an electric physical quantity relating to a head capacitor provided between a DC power supply and an inverter switching element; and a protection control unit which controls the inverter switching element in accordance with a change in the electric physical quantity so that no electric current flows to the head capacitor.