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:
Jun. 12, 2018
Filed:
Oct. 19, 2015
Applicant:
Rohm Co., Ltd., Kyoto, JP;
Inventors:
Shinji Kawata, Kyoto, JP;
Keita Itohara, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/10 (2006.01);
U.S. Cl.
CPC ...
H02H 3/10 (2013.01); H02H 3/105 (2013.01);
Abstract
An overcurrent protection circuit includes a voltage monitoring part configured to monitor an output voltage generated from a periodic switching operation of a switching output stage or a feedback voltage corresponding to the output voltage, a current monitoring part configured to monitor whether a current flowing through the switching output stage is under an overcurrent condition, and a protection operation part configured to perform an overcurrent protection operation in response to monitoring results of both the voltage monitoring part and the current monitoring part.