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:
Oct. 30, 2018
Filed:
Mar. 08, 2017
Applicant:
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Inventors:
Fumio Kumazawa, Ota, JP;
Takashi Ogawa, Ogaki, JP;
Assignee:
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 5/00 (2006.01); G05D 3/00 (2006.01); H02H 7/08 (2006.01); H02P 1/04 (2006.01); H02P 6/20 (2016.01); H02P 6/14 (2016.01);
U.S. Cl.
CPC ...
H02P 6/20 (2013.01); H02P 6/14 (2013.01);
Abstract
According to at least some embodiments, a method for driving a motor includes, upon a restart of the motor, determining whether the rotor is rotating based on a signal generated from outputs of at most one Hall sensor. The method further includes, if it is determined that the rotor is rotating, determining a plurality of output duty values for driving a plurality of windings of the motor. The method further includes generating a drive signal for driving the motor based on the determined plurality of output duty values.