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. 12, 2022
Filed:
Jan. 31, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Satoshi Ojika, Tokyo, JP;
Shinichiro Oikawa, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
An operation processing unit computes an amount of operation for adjusting electric power supplied to a load. A signal generator computes, based on an amount of operation, the number of switch elements to be turned on among switch elements and a duty ratio to be set for the number of switch elements to be turned on and generates, based on the determined number of switch elements and duty ratio, a signal for driving at least one of the switch elements. The signal generator includes a correction value operation unit that obtains a correction value based on a difference of an on-pulse width between a shunt current flowing through a corresponding one of the switch elements and a shunt drive signal for driving the corresponding one switch element, and a corrector that corrects, based on the correction value, an amount of operation output from the operation processing unit.