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:
Apr. 23, 2013
Filed:
Dec. 09, 2009
Mark E. Hartman, Peoria, IL (US);
James D. Siegle, Peoria, IL (US);
Thuong D. Le, Edwards, IL (US);
Bruce H. Hein, East Peoria, IL (US);
Mark E. Hartman, Peoria, IL (US);
James D. Siegle, Peoria, IL (US);
Thuong D. Le, Edwards, IL (US);
Bruce H. Hein, East Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method for testing a power converter having at least one power transistor is disclosed. The method may include receiving a power transistor test request, and resetting a fault flag. The method may also include applying a gate driver signal to each power transistor, receiving a feedback signal from each power transistor, and determining a difference between the gate driver signal and the feedback signal associated with a respective power transistor. The method may further include identifying a fault if the difference exceeds a threshold profile, and setting a fault flag when a fault is identified.