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:
Sep. 10, 2019
Filed:
Mar. 06, 2018
Applicant:
Minebea Mitsumi Inc., Nagano, JP;
Inventors:
Assignee:
MINEBEA MITSUMI INC., Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 23/20 (2006.01); H02P 6/28 (2016.01); G01R 23/02 (2006.01); H02P 8/02 (2006.01); H02P 8/12 (2006.01); H02P 27/08 (2006.01); H02P 29/50 (2016.01);
U.S. Cl.
CPC ...
G01R 23/20 (2013.01); G01R 23/02 (2013.01); H02P 6/28 (2016.02); H02P 8/02 (2013.01); H02P 8/12 (2013.01); H02P 27/085 (2013.01); H02P 29/50 (2016.02); H02P 2209/09 (2013.01);
Abstract
In accordance with one aspect of the present disclosure, a motor drive control device is a motor drive control device performing PWM (Pulse Width Modulation) control of a motor, wherein harmonics of a fundamental frequency for PWM control of the motor are included in noise occurring from the motor; the fundamental frequency for PWM control is larger than a frequency corresponding to a bandwidth of a predetermined radio frequency band a communication apparatus uses; and frequencies of continuous harmonic components of the fundamental frequency for PWM control appear before and after the predetermined radio frequency band.