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:
Nov. 26, 2019
Filed:
Sep. 07, 2017
Applicant:
Infineon Technologies Austria Ag, Villach, AT;
Inventors:
Karl Norling, Villach, AT;
Johannes Groeger, Blaubeuren, DE;
Anton Mauder, Kolbermoor, DE;
Bernhard Wicht, Reutlingen, DE;
Assignee:
INFINEON TECHNOLOGIES AUSTRIA AG, Villach, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 17/082 (2006.01); H01L 21/02 (2006.01); H01L 29/24 (2006.01); H03K 17/16 (2006.01); H01L 29/786 (2006.01);
U.S. Cl.
CPC ...
H03K 17/0828 (2013.01); H01L 21/02472 (2013.01); H01L 21/02565 (2013.01); H01L 29/247 (2013.01); H03K 17/0826 (2013.01); H03K 17/165 (2013.01); H03K 17/168 (2013.01); H01L 29/78693 (2013.01); H03K 2217/0027 (2013.01);
Abstract
A method for protecting a power switch during turn-on includes sensing that a change in current through the power switch is in regulation, measuring a time that the change in current through the power switch is in regulation, and comparing the time that the change in current through the power switch is in regulation to a reference time. An over current signal, which can be used to disable the power switch, is generated if the time that the change in current through the power switch is in excess of the reference time.