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:
Jun. 07, 2022
Filed:
Jan. 28, 2019
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Takeshi Amimoto, Tokyo, JP;
Yu Kawai, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 7/5395 (2006.01); H02M 1/42 (2007.01); H02M 7/48 (2007.01); H02M 1/00 (2006.01); H02M 7/493 (2007.01);
U.S. Cl.
CPC ...
H02M 7/5395 (2013.01); H02M 1/007 (2021.05); H02M 1/4283 (2021.05); H02M 7/493 (2013.01); H02M 1/4225 (2013.01); H02M 7/48 (2013.01);
Abstract
When an inverter and a converter are merely operated with their carrier waves synchronized with each other, current ripple of a smoothing capacitor connected therebetween might be increased. Accordingly, bipolar modulation PWM control is performed on the inverter, PWM control is performed on the converter, and the phase of the carrier wave for the inverter or the converter is shifted on the basis of AC output, whereby timings of currents flowing into the smoothing capacitor are made different from each other.