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. 03, 2012
Filed:
May. 15, 2009
Ying-min Chen, Hsinchu County, TW;
Wen-chuan Chen, Hsinchu, TW;
Jing-yi Huang, Taoyuan County, TW;
Cheng-xue Wu, Kaohsiung, TW;
Chia-ching Lin, Tainan, TW;
Wan-kai Shen, Taipei, TW;
Ying-Min Chen, Hsinchu County, TW;
Wen-Chuan Chen, Hsinchu, TW;
Jing-Yi Huang, Taoyuan County, TW;
Cheng-Xue Wu, Kaohsiung, TW;
Chia-Ching Lin, Tainan, TW;
Wan-Kai Shen, Taipei, TW;
Industrial Technology Research Institute, Hsin-Chu, TW;
Abstract
A motion control servo loop apparatus, comprising: a feed-forward control module, and a proportional-integral-derivative (PID) control loop and a compensation adder. The feed-forward control module is capable of generating a feed-forward compensation. The PID control loop further comprises: a proportional control module, an integral control module and a derivative control module. The proportional control module is capable of generating a proportional compensation. The derivative control module is capable of generating a derivative compensation. The integral control module uses a digital differential analyzer (DDA) algorithm to perform integration for accumulated errors with respect to each sampling clock at each DDA pulse and thus output an accumulated error, which is then processed to generate an integral compensation. Thereafter, the compensation adder receives the feed-forward compensation, the proportional compensation, the integral compensation and the derivative compensation to calculate a position error compensation for a motor driver.