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:
Jan. 17, 2017
Filed:
Mar. 27, 2014
Applicant:
Denso Corporation, Kariya, Aichi-pref., JP;
Inventors:
Assignee:
DENSO CORPORATION, Kariya, Aichi-pref., JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 11/32 (2006.01); H02P 5/68 (2006.01); B60H 1/00 (2006.01); H02P 3/08 (2006.01); H02P 21/00 (2016.01); H02P 27/08 (2006.01);
U.S. Cl.
CPC ...
H02P 5/68 (2013.01); B60H 1/00 (2013.01); B60H 1/00428 (2013.01); B60H 1/00857 (2013.01); H02P 3/08 (2013.01); H02P 21/0003 (2013.01); H02P 27/08 (2013.01);
Abstract
When a control device of a motor controller simultaneously rotates a first DC motor and a second DC motor by controlling a first circuit, a second circuit and a third circuit, the second circuit is shared. Further, the control device controls each of switch elements of the shared second circuit by using pulse-width modulation. Accordingly, the drive of the first DC motor and the second DC motor can be controlled with high accuracy by the change of a duty ratio of each of the switch elements of the shared second circuit.