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, 2005
Filed:
Jun. 30, 2003
Kenneth W. Belt, Fort Atkinson, WI (US);
Michael Reichel, Pittsburgh, PA (US);
J. Michael Watral, Stow, OH (US);
Kenneth W. Belt, Fort Atkinson, WI (US);
Michael Reichel, Pittsburgh, PA (US);
J. Michael Watral, Stow, OH (US);
Medrad, Inc., Indianola, PA (US);
Abstract
A circuit for selectively disabling and enabling n-coils includes n-drivers in a totem-pole configuration. Each of the n-drivers includes two transistors whose control terminals connect at a common node. Each n-driver is used to operate one of the n-coils by being responsive at its common node to (i) a coil disable signal by activating one transistor thereof and deactivating the other transistor thereof thereby drawing current away from and thus disabling its corresponding coil and allowing current to flow through the one transistor and thus be available as a source of current to a successive one of the n-drivers and (ii) a coil enable signal by deactivating the one transistor thereof and activating the other transistor thereof thereby allowing current to flow serially through its corresponding coil and the other transistor thus enabling its corresponding coil and to be available as a source of current to the successive n-driver.