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:
Feb. 02, 2021
Filed:
Nov. 15, 2017
Applicant:
Minebea Mitsumi Inc., Nagano, JP;
Inventors:
Assignee:
MINEBEA MITSUMI INC., Nagano, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 6/16 (2016.01); H02H 7/093 (2006.01); H02P 6/14 (2016.01); H02P 23/04 (2006.01); H02P 6/12 (2006.01); H02P 6/15 (2016.01); H02P 3/18 (2006.01); H02P 3/02 (2006.01); H02P 25/04 (2006.01);
U.S. Cl.
CPC ...
H02P 23/04 (2013.01); H02P 3/025 (2013.01); H02P 3/18 (2013.01); H02P 6/12 (2013.01); H02P 6/15 (2016.02); H02P 6/16 (2013.01); H02P 25/04 (2013.01);
Abstract
According to an aspect of the present disclosure, a motor drive control device driving a motor using position information detected by one sensor includes: a current detection unit detecting a magnitude of a coil current flowing through a coil of the motor; a rotation position detection unit detecting a rotation position of the motor based on the position information; and a hunting determination unit determining, based on the magnitude of the coil current, the rotation position of the motor, and a driving command for driving the motor, whether or not the motor is in a hunting condition.