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:
Aug. 19, 2025
Filed:
Jul. 27, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Kazuaki Hiyama, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
In the present disclosure, a buffer outputs a gate drive signal indicating the same logic level as an element control signal, and an inverting buffer outputs a base drive signal indicating the opposite logic level to the element control signal. The resistance is interposed between the output of the buffer and the gate of an IGBT. A PNP bipolar transistor has its emitter connected to the gate of the IGBT and its collector connected to reference potential. A diode is interposed between the output of the buffer and a base of the PNP bipolar transistor. An output of the inverting buffer is connected to the base of the PNP bipolar transistor through a resistance.