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:
Mar. 28, 2017
Filed:
Sep. 14, 2015
Applicant:
Infineon Technologies Ag, Neubiberg, DE;
Inventors:
Christian Heiling, Graz, AT;
Matthias Bogus, Munich, DE;
Assignee:
Infineon Technologies AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 5/04 (2006.01); H02P 29/00 (2016.01); G01K 7/00 (2006.01);
U.S. Cl.
CPC ...
H02P 29/0088 (2013.01); G01K 7/00 (2013.01);
Abstract
Systems and techniques are described for monitoring the operating temperature of one or more circuit elements, such as a metal oxide field effect transistor (MOSFET) switch, where the circuit element is used to control at least one phase of an electric motor. The systems and techniques may calculate temperature by determining at least two electrical signals from the circuit element taken at least two different times. This results in an accurate temperature calculation without requiring precise knowledge of the particular characteristics of each respective circuit element.