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.

Date of Patent:
May. 19, 2026

Filed:

Sep. 27, 2024
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Yo Habu, Tokyo, JP;

Takashi Watanabe, Fukuoka, JP;

Shohei Higashi, Fukuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/08 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H03K 17/6872 (2013.01); H02M 1/08 (2013.01);
Abstract

A gate driving device according to the present disclosure includes a gate driver circuit, a first capacitor provided outside, and a first diode. The gate driver circuit includes first and second transistors that operate complementarily, are connected in series between a first node at a first voltage and a second node at a second voltage lower than the first voltage, and have a connection node serving as an output node of the gate driving device; a first charge transistor and a first negative-bias transistor that are connected in series between the first node and a third node at a third voltage lower than the first voltage and higher than the second voltage and have a connection node connected to one electrode of the first capacitor; and a logic circuit that controls each transistor.


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