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. 23, 2021
Filed:
Feb. 12, 2019
Applicant:
Nidec Servo Corporation, Kiryu, JP;
Inventor:
Charles Simson Halason Silitonga, Kiryu, JP;
Assignee:
NIDEC SERVO CORPORATION, Gunma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/20 (2016.01); H02P 6/28 (2016.01);
U.S. Cl.
CPC ...
H02P 6/20 (2013.01); H02P 6/28 (2016.02);
Abstract
A motor unit includes a motor, a controller that outputs a pulse signal, a driver that supplies a drive current to the motor based on the pulse signal, and a detector that determines an actual rotation number of the motor. The controller includes calculators that calculate control values of a rotation number of the motor, and control stages. The controller also includes a pulse generator that selects one of the control values calculated by the calculators to generate the pulse signal based on the control value selected, at each of the control stages.