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:
Mar. 26, 2019
Filed:
Dec. 11, 2014
Applicant:
Fairchild Korea Semiconductor Ltd., Bucheon-si, KR;
Inventors:
Assignee:
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); G01R 31/40 (2014.01); H03K 17/082 (2006.01); H02M 3/335 (2006.01); G01R 1/20 (2006.01); H02M 1/32 (2007.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/025 (2013.01); G01R 31/40 (2013.01); H02M 3/33507 (2013.01); H03K 17/0822 (2013.01); G01R 1/203 (2013.01); H02M 1/32 (2013.01); H02M 2001/0009 (2013.01); H03K 2217/0027 (2013.01);
Abstract
According to the exemplary embodiments, a short-circuit of a sense resistor is detected according to a result of comparison between a sense voltage and a reference voltage at a time based on at least one of a period set based on an input sense voltage and a turn-on time of a power switch. A blanking period is set based on the input sense voltage in a current mode, and a short-circuited resistor detection period is set based on the input sense voltage.