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. 19, 2019
Filed:
Dec. 14, 2016
Applicant:
Schneider Electric Usa, Inc., Andover, MA (US);
Inventors:
Kevin M Jefferies, Raleigh, NC (US);
Benjamin W Edwards, Rolesville, NC (US);
Matthew L White, Cary, NC (US);
Richard Karl Weiler, Wake Forest, NC (US);
Assignee:
Schneider Electric USA, Inc., Andover, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/04 (2006.01); H02H 3/24 (2006.01); H02H 7/125 (2006.01); H02M 7/217 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 7/217 (2013.01); H02M 1/32 (2013.01);
Abstract
A system to detect application conditions exceeding SELV design limitations and to subsequently warn or take action. A pulse detector is coupled to the switching pole of an output FET of a SELV power supply through an optocoupler and tracks when the FET is commutated off to block conduction. If a pulse occurs more than once in a given period the power supply is declared to be outside of SELV design parameters and warnings are issued or actions are taken.