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:
Jun. 28, 2016
Filed:
Apr. 09, 2014
Applicant:
Stmicroelectronics Asia Pacific Pte Ltd, Singapore, SG;
Inventors:
Wei Seng Chew, Singapore, SG;
Wei Xiong, Singapore, SG;
Assignee:
STMICROELECTRONICS ASIA PACIFIC PTE. LTD., Singapore, SG;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/18 (2016.01); H02P 21/14 (2016.01); H02P 6/22 (2006.01);
U.S. Cl.
CPC ...
H02P 6/186 (2013.01); H02P 6/182 (2013.01); H02P 6/185 (2013.01); H02P 6/22 (2013.01); H02P 21/146 (2013.01);
Abstract
Methods and apparatus for determining rotor position in a motor including a rotor and stator windings. The method includes measuring inductive sense values for each pair of the stator windings by performing an inductive sense routine on the motor, measuring stator winding voltage values, induced by mutual inductance between windings, for each of the stator windings by performing a mutual inductance sensing routine on the motor, and determining the rotor position based on the inductive sense values and the stator winding voltage values.