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. 25, 2022
Filed:
Sep. 28, 2018
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventor:
Yu Kawai, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2006.01); H02M 1/08 (2006.01); H02M 3/158 (2006.01); H02M 7/5387 (2007.01);
U.S. Cl.
CPC ...
H02M 1/0009 (2021.05); H02M 1/08 (2013.01); H02M 3/158 (2013.01); H02M 7/53871 (2013.01);
Abstract
A PWM control unit generates signals for controlling switching elements in respective legs based on the magnitude relationship between individual Duty commands for the respective legs and triangular wave carriers having different initial phases and having a common cycle, a current estimation unit acquires detected values from a current detector at a sampling cycle different from the carrier cycle and estimates the phase currents, and a current control unit adjusts Duty commands so that the estimated phase currents coincide with target values for the phase currents.