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. 19, 2019
Filed:
Mar. 25, 2017
Applicant:
Ubtech Robotics Corp., Shenzhen, CN;
Inventors:
Assignee:
UBTECH ROBOTICS CORP., Shenzhen, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); G05B 13/04 (2006.01); H02P 9/02 (2006.01); H02P 7/29 (2016.01);
U.S. Cl.
CPC ...
H02P 7/2913 (2013.01); H02P 9/02 (2013.01);
Abstract
A control method of direct current (DC) machine includes the following steps: obtaining a target speed n, detecting a current speed n, calculating a current rotating speed difference e, calculating a speed base voltage W according to the current speed n, calculating a PID adjustment voltage V according to the current rotating speed difference e, calculating an output voltage U according to the PID adjustment voltage V and the speed base voltage W, and driving the DC machine according to the output voltage U.