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. 17, 2009
Filed:
Apr. 01, 2004
Applicants:
Philippe Bienvenu, Allauch, FR;
Sandra Mattei, Marseille, FR;
Inventors:
Philippe Bienvenu, Allauch, FR;
Sandra Mattei, Marseille, FR;
Assignee:
STMicroelectronics S.A., Montrouge, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 1/60 (2006.01); H02H 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device for protecting a circuit against a polarity reversal of a connection to a D.C. power supply, comprising a controllable switch interposed on said connection between a first terminal of a first voltage of the D.C. power supply and a first terminal of the circuit, and first means for turning-off with a delay the switch in the presence of a reverse polarity.