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:
May. 24, 2011
Filed:
Aug. 25, 2006
Gary Oliveira, Lake Orion, MI (US);
Todd Ferguson, Fenton, MI (US);
Gary Oliveira, Lake Orion, MI (US);
Todd Ferguson, Fenton, MI (US);
BorgWarner, Inc., Auburn Hills, MI (US);
Abstract
A fast turn-off and fast turn-on circuit () providing at least one power source (), at least one switching device (), a coil (), and at least a first voltage control device (). The at least one switching device () is connected to the at least one power source () for selectively connecting the at least one power source () to portions of the circuit (). An electrical current from at least one power source () charges the coil () and creates an electromagnetic field when the at least one switching device () is in a closed position and connects the at least one power source () with the coil (). The first voltage control device () limits a voltage in the circuit () when the electromagnetic field decays.