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:
Nov. 22, 2016

Filed:

May. 29, 2015
Applicant:

Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;

Inventor:

Masaki Wasekura, Toyota, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/12 (2006.01); H03K 17/567 (2006.01); H03K 5/24 (2006.01); H03K 17/16 (2006.01);
U.S. Cl.
CPC ...
H03K 17/567 (2013.01); H03K 5/12 (2013.01); H03K 5/24 (2013.01); H03K 17/163 (2013.01);
Abstract

A gate potential control circuit includes a driving switching element, a first gate potential supply part, a first switching element, a first resistor, and a first operational amplifier. The first operational amplifier includes an output portion connected to a gate of the first switching element, an inverting input into which a first reference potential is input, and a non-inverting input into which a closer one of a first value and a second value to a potential of the first gate potential supply part is input. The first value is based on a potential difference obtained by subtracting a potential of a terminal of the first resistor on a driving switching element side from a potential of a terminal of the first resistor on a first gate potential supply part side. The second value is based on a potential of a terminal of the first switching element.


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