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:
Jul. 06, 2021
Filed:
Dec. 25, 2017
Applicant:
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Inventors:
Hiroto Mizutani, Chiyoda-ku, JP;
Takaaki Takahara, Chiyoda-ku, JP;
Hiroyasu Iwabuki, Chiyoda-ku, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 7/06 (2006.01); H02M 7/5387 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33569 (2013.01); H02M 7/06 (2013.01); H02M 7/53871 (2013.01);
Abstract
A control circuit performs at least pulse width modulation control on a first leg and selects to perform pulse width modulation control and pulse frequency modulation control, to perform pulse width modulation control and phase shift modulation control, or to perform pulse width modulation control, pulse frequency modulation control, and phase shift modulation control on a second leg, based on comparison of a voltage conversion ratio between DC voltage of a DC capacitor and output voltage to a load with at least one threshold.