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:
Feb. 25, 2020
Filed:
Feb. 14, 2018
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Navaneeth Kumar Narayanasamy, Coimbatore, IN;
Salil Chellappan, Bangalore, IN;
Apoorva Awasthy, Bangalore, IN;
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/0812 (2006.01); H03K 17/0814 (2006.01); H02H 3/08 (2006.01); H02H 7/20 (2006.01);
U.S. Cl.
CPC ...
H03K 17/08122 (2013.01); H02H 3/08 (2013.01); H02H 7/20 (2013.01); H03K 17/08128 (2013.01); H03K 17/08142 (2013.01);
Abstract
In some examples, a gate driver includes a gate sense pin and a gate sense circuit configured to couple to a node of a transistor via the gate sense pin. The gate sense circuit includes an overcurrent detection circuit configured to detect a first fault condition based on the node before the transistor turns on in a soft switching mode. The gate sense circuit also includes a Miller plateau detection circuit configured to detect a second fault condition based on the node when the transistor is turning on in a hard switching mode.