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:
Dec. 27, 2011
Filed:
Feb. 20, 2008
Russel J. Kerkman, Milwaukee, WI (US);
Lixiang Wei, Whitefish Bay, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
Brian P. Brown, Mayville, WI (US);
Neil Gollhardt, Fox Point, WI (US);
Bruce W. Weiss, Milwaukee, WI (US);
Russel J. Kerkman, Milwaukee, WI (US);
Lixiang Wei, Whitefish Bay, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
Brian P. Brown, Mayville, WI (US);
Neil Gollhardt, Fox Point, WI (US);
Bruce W. Weiss, Milwaukee, WI (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
A method and apparatus for predicting junction device temperature of at least a first switching device in a power conversion module that includes a plurality of switching devices, the method comprising the steps of, during switching activity, identifying at least one operating characteristic of the first switching device and solving an equation that uses the identified operating characteristic to predict the temperature of the first switching device where the equation solved is a function of the location of the first switching device with respect to the other switching devices in the plurality.