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. 05, 2019
Filed:
Jul. 06, 2017
Applicants:
Norihiro Yamamoto, Kanagawa, JP;
Haruyuki Suzuki, Kanagawa, JP;
Masayuki Muranaka, Fukushima, JP;
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 11/18 (2006.01); H02P 8/02 (2006.01); H02P 21/22 (2016.01); B65H 5/06 (2006.01); G05B 1/01 (2006.01); H02P 6/18 (2016.01);
U.S. Cl.
CPC ...
H02P 8/02 (2013.01); B65H 5/062 (2013.01); G05B 1/01 (2013.01); H02P 6/18 (2013.01); H02P 21/22 (2016.02); G05B 2219/42095 (2013.01);
Abstract
A motor controller that controls a motor in a first control method based on a first current command value and a second control method based on a second current command value. The motor controller includes an analog-to-digital converter to generate the second current command value based on a reference signal externally input to the motor controller and a current limit generator to generate an upper limit value of the first current command value based on the second current command value.