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:
Mar. 30, 2010
Filed:
Jun. 27, 2007
Choong-hyuk Yim, Seoul, KR;
Choong-Hyuk Yim, Seoul, KR;
Convex Co., Ltd., , KR;
Abstract
The present invention relates to a method and a system for compensating for a position error of a step motor. A method for compensating for a position error of a step motor includes: sequentially inputting a predetermined number of a pulse as a rotator position command to a step motor driver; driving a step motor in a micro step method based on the rotator position command and a predetermined current command table; detecting an actual position of a rotator of the step motor while the step motor is being driven; calculating a position error by comparing the rotator position command and the detected actual position of the rotator; and compensating for the predetermined current command table based on the calculated position error. According to the present invention, a position error which may occur when the step motor is driven by a micro step method can be removed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile