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:
Dec. 07, 1999
Filed:
Dec. 16, 1998
Applicant:
Inventors:
Alain Gousset, Nanterre, FR;
Yves Guermeur, Evreux, FR;
Assignee:
Schneider Electric SA, Boulogne billancourt, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ; H02M / ; H02M / ; H02M / ;
U.S. Cl.
CPC ...
363 16 ; 363 82 ; 363 90 ; 363125 ;
Abstract
Device designed to control a coil forming part of a solenoid valve, for example in a contactor type device. A switching power supply 14 includes a winding S1 powering a control circuit 15 and another winding S2 placed with a switch T2 at the coil terminals. Switch T2 is controlled by the control circuit to power the coil in the hold phase starting from the switching power supply. This reduces disturbances during the hold phase.