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:
Aug. 25, 2020
Filed:
Dec. 06, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Toshikazu Kuwano, Fujimi-machi, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/087 (2006.01); H02M 3/156 (2006.01); H02M 1/32 (2007.01); H01L 27/02 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/087 (2013.01); H01L 27/0266 (2013.01); H02M 1/32 (2013.01); H02M 3/156 (2013.01); H02M 2001/0009 (2013.01);
Abstract
The present overcurrent detection circuit includes: a comparative voltage generation unit that generates a comparative voltage that changes in accordance with a power supply voltage; and a comparison unit that generates a comparison result signal by comparing a drain-source voltage of a switching transistor with the comparative voltage.