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. 17, 2025
Filed:
Jul. 14, 2020
Applicant:
Mitsubishi Electric Corporation, Tokyo, JP;
Inventors:
Kenichi Morokuma, Tokyo, JP;
Takuya Sakai, Tokyo, JP;
Assignee:
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/08 (2006.01); H02M 1/00 (2007.01);
U.S. Cl.
CPC ...
H02M 1/08 (2013.01); H02M 1/0029 (2021.05); H02M 1/0048 (2021.05);
Abstract
A drive adjustment circuit for a power semiconductor element includes a differentiating circuit to differentiate a gate voltage of a power semiconductor element, a power supply to generate a comparison reference voltage, a comparator having a first input terminal connected to the differentiating circuit and a second input terminal receiving the comparison reference voltage, and a voltage adjusting circuit to adjust a gate voltage of the power semiconductor element based on an output of the comparator.