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. 03, 2012
Filed:
Sep. 30, 2008
Applicants:
Lixiang Wei, Whitefish Bay, WI (US);
Masahiro Tsuyoshi, Brookfield, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
Inventors:
Lixiang Wei, Whitefish Bay, WI (US);
Masahiro Tsuyoshi, Brookfield, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power electronics device with an improved IGBT protection mechanism is provided. More specifically, systems and methods are provided for reducing the switching frequency of an inverter module based on the junction temperature variation of the IGBT.