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. 30, 2010
Filed:
Sep. 21, 2005
Applicant:
Michael R. Garrard, Chelmsford, GB;
Inventor:
Michael R. Garrard, Chelmsford, GB;
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02P 3/05 (2006.01);
U.S. Cl.
CPC ...
Abstract
A controller for an ignition coil, the controller comprising means for determining a rate of change of current flow through a primary winding of the ignition coil; and means for switching off current flow through the primary winding of the ignition coil as a function of the rate of change of current.