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:
Aug. 09, 2005
Filed:
May. 28, 2003
Applicants:
Bing Cheng, West Bloomfield, MI (US);
Kent M. Harmon, Troy, MI (US);
Inventors:
Bing Cheng, West Bloomfield, MI (US);
Kent M. Harmon, Troy, MI (US);
Assignee:
Ballard Power Systems Corporation, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H007/122 ;
U.S. Cl.
CPC ...
Abstract
A method for diagnosing faults using a load. In the method IGBTs are controlled such that certain currents are expected. If the currents are not as expected, a fault may be diagnosed.