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.

Date of Patent:
Mar. 17, 2015

Filed:

Dec. 23, 2010
Applicants:

Lewei Qian, Peoria, IL (US);

Matthew Hendrickson, Dunlap, IL (US);

David Marchand, Dunlap, IL (US);

Inventors:

Lewei Qian, Peoria, IL (US);

Matthew Hendrickson, Dunlap, IL (US);

David Marchand, Dunlap, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H03K 17/08 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02M 2001/327 (2013.01); H03K 2017/0806 (2013.01);
Abstract

A method of regulating temperature of a transistor-based component of a power system is disclosed. The method may include operating the power system to supply electric power to the transistor-based component and converting the electric power from direct current to alternating current, or alternating current to direct current, using the transistor-based component, thereby creating heat in the transistor-based component. The method may include outputting the electric power from the transistor-based component and supplying the electric power to an electrically-powered component to perform an output operation. The method may include controlling, during a predetermined system operating condition, one or more operations of a component associated with the power system to actively generate heat to thereby maintain the temperature of the transistor-based component higher than from the conversion of electric power that is performed to produce the electric power used to perform the output operation during the predetermined system operating condition.


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