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. 22, 2025
Filed:
Jun. 16, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Yuji Nemoto, Tokyo, JP;
Kohei Onda, Tokyo, JP;
Takayoshi Miki, Tokyo, JP;
Shota Morisaki, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A control unit of a gate drive circuit applies, between a gate and a source of a switching element, a first voltage so as to turn on the switching element. After transference of drain current of the switching element, the control unit interrupts the first voltage and applies, between the gate and the source of the switching element, a second voltage that is lower than the first voltage and that is higher than a mirror voltage of the switching element. When no short-circuit current is flowing to the switching element, the control unit interrupts the second voltage and applies, between the gate and the source of the switching element, a third voltage higher than the second voltage.