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:
Jan. 04, 2011
Filed:
Dec. 03, 2007
Applicants:
John T. Wichlacz, Davison, MI (US);
Andi Gega, Royal Oak, MI (US);
W. David Williams, Waterford, MI (US);
Inventors:
John T. Wichlacz, Davison, MI (US);
Andi Gega, Royal Oak, MI (US);
W. David Williams, Waterford, MI (US);
Assignee:
Magna Electronics, Holly, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A load dump protection system is operable to provide protection for power transistors used to drive a blower motor of a vehicle. The load dump protection system includes circuitry for detecting an over-voltage transient. The circuitry adjusts a drive transistor into a saturation mode in response to a detection of an over-voltage transient. The circuitry lowers the power dissipated by the drive transistor when the drive transistor is in the saturation mode.