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:
Oct. 22, 2019

Filed:

Oct. 24, 2016
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Karl Norling, Villach, AT;

Erwin Huber, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/00 (2006.01); H02H 3/20 (2006.01); H02H 1/00 (2006.01); H03K 5/08 (2006.01); H03K 5/24 (2006.01); H03K 17/567 (2006.01); H03K 17/687 (2006.01); H03K 17/082 (2006.01);
U.S. Cl.
CPC ...
H02H 3/20 (2013.01); H02H 1/0007 (2013.01); H03K 5/08 (2013.01); H03K 5/24 (2013.01); H03K 17/0822 (2013.01); H03K 17/567 (2013.01); H03K 17/687 (2013.01); H03K 2217/0081 (2013.01);
Abstract

A method for operating a gate driver circuit includes supplying power to the gate driver circuit from a power supply including a positive power supply voltage and a negative power supply voltage. The method also includes comparing the negative power supply voltage with a first voltage at an output terminal of a transistor, wherein the gate driver circuit is coupled to a gate terminal of the transistor. The method also includes operating the gate driver circuit when the negative power supply voltage is more negative than a trigger voltage, wherein the trigger voltage is a predetermined voltage above the first voltage. The method also includes deactivating at least a portion of the gate driver circuit when the negative power supply voltage is more positive than the trigger voltage.


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