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. 09, 2021
Filed:
Dec. 16, 2019
Applicant:
Analog Devices International Unlimited Company, Limerick, IE;
Inventors:
Steven John Tanghe, Essex Junction, VT (US);
Brian K. Jadus, Williston, VT (US);
Assignee:
Analog Devices International Unlimited Company, Limerick, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 1/0009 (2021.05); H02M 1/0025 (2021.05);
Abstract
An electronic circuit comprises a power switch and a fault detection circuit. The power switch circuit includes a power switch transistor. The fault detection circuit includes a comparator circuit configured to monitor a voltage across the power switch transistor and compare the voltage to a varying threshold voltage that decreases with time, and produce an indication of a circuit fault when the voltage of the power switch transistor is greater than the time varying threshold voltage.