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:
Mar. 28, 2023

Filed:

Apr. 09, 2021
Applicant:

Texas Instruments Incorporated, Dallas, TX (US);

Inventor:

Nathan Richard Schemm, Rowlett, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/26 (2020.01); H03K 17/687 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2621 (2013.01); G01R 31/2601 (2013.01); H03K 5/24 (2013.01); H03K 17/6871 (2013.01);
Abstract

A fault detection circuit includes a short circuit comparison circuit which has a first input connected to the source of the second NFET, a second input, and an output. The circuit includes an over-current comparison circuit which has a first input connected to the source of the second NFET, a second input, and an output. The circuit includes a voltage divider circuit which has a first terminal connected to first input of the short circuit comparison circuit, a second terminal connected to the first input of the over-current comparison circuit, and a third terminal connected to a ground terminal. The circuit includes a delay circuit which has an input connected to the output of the over-current comparison circuit and has an output.


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