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:
May. 20, 2003
Filed:
Dec. 03, 2001
Wennong Zhang, Kitakyushu, JP;
Yasuhiko Kaku, Kitakyushu, JP;
Tadashi Okubo, Kitakyushu, JP;
Masaru Nakano, Kitakyushu, JP;
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Abstract
A position controller for motors for increasing the position loop gain of a full-close control system without causing recurrence of vibration. The controller where a position signal representing the position of a movable table and outputted from straight-line motion position sensing means attached to a straight-line motion mechanism is used as a position feedback signal comprises differentiating means ( ) for differentiating a straight-line motion position signal and outputting a straight-line motion speed signal, subtracting means ( ) for calculating the difference between a speed command signal and the straight-line motion speed signal, integrating means ( ) for integrating a difference signal outputted form the subtracting means, proportional gain means ( ) for receiving the output signal from the integrating means, and adding means ( ) for adding the output signal form the proportional gain means to the speed command signal and outputting a new speed command Vr.