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:
May. 15, 2018
Filed:
Jul. 01, 2016
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Stephen John Fedigan, Plano, TX (US);
Sandun Shivantha Kuruppu, Dallas, TX (US);
Paul LeRoy Brohlin, Parker, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 1/28 (2006.01); H02P 27/06 (2006.01); H02H 7/08 (2006.01); G01R 31/34 (2006.01); G01R 27/16 (2006.01); H02P 6/185 (2016.01); H02P 29/024 (2016.01);
U.S. Cl.
CPC ...
H02P 27/06 (2013.01); G01R 27/16 (2013.01); G01R 31/343 (2013.01); H02H 7/0822 (2013.01); H02P 6/185 (2013.01); H02P 29/0241 (2016.02);
Abstract
A motor control circuit includes a processor configured to calculate a plurality of motor impedances from measurements of an excitation voltage on a power bus to a motor and measurements of a plurality of currents through the motor resulting from the excitation voltage, and the processor configured to calculate individual winding inductances in the motor, based on the measured motor impedances, and configured to determine whether there is an inter-turn winding fault based on the calculated individual winding inductances.