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. 16, 2015
Filed:
Oct. 04, 2012
Applicant:
Melexis Technologies NV, Tessenderlo, BE;
Inventors:
Sandro Purfuerst, Ilmenau, DE;
Thomas Freitag, Plaue, DE;
Veit Zöppig, Langewiesen, DE;
Tom Ströhla, Ilmenau, DE;
Assignee:
MELEXIS TECHNOLOGIES NV, Tessenderlo, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/00 (2006.01); H02K 29/06 (2006.01); H02P 6/18 (2006.01); H02P 25/08 (2006.01);
U.S. Cl.
CPC ...
H02P 6/18 (2013.01); H02P 6/186 (2013.01); H02P 25/083 (2013.01);
Abstract
A method for determining the position of a moving rotor in a switched reluctance motor includes the steps of applying a voltage to a phase winding of the reluctance motor, sampling a signal representative of the current magnitude in this phase winding, detecting a feature of the second temporal derivative of the signal, and determining the position of the moving rotor taking into account the occurrence of this feature. Apparatus for carrying out the method is described.