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:
Sep. 02, 2025
Filed:
Oct. 13, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Takeshi Horiguchi, Tokyo, JP;
Takashi Masuhara, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A drive circuit for a power semiconductor element includes a voltage clamp circuit connected between a first main electrode and a control electrode and a second turn-off circuit including a capacitive element and a switching element connected in series between the control electrode and a second main electrode and a resistive element connected in parallel to the capacitive element. A turn-off control circuit switches the switching element in the second turn-off circuit to on when a voltage across the first main electrode and the second main electrode increases after start of turn-off of the power semiconductor element.