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Patent Searching and Data


Title:
POSITION CONTROLLER FOR MOTOR
Document Type and Number:
WIPO Patent Application WO/2000/075739
Kind Code:
A1
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 (2) for differentiating a straight-line motion position signal and outputting a straight-line motion speed signal, subtracting means (4) for calculating the difference between a speed command signal and the straight-line motion speed signal, integrating means (3) for integrating a difference signal outputted from the subtracting means, proportional gain means (1) for receiving the output signal from the integrating means, and adding means (19) for adding the output signal from the proportional gain means to the speed command signal and outputting a new speed command Vr.

Inventors:
ZHANG WENNONG (JP)
KAKO YASUHIKO (JP)
OKUBO TADASHI (JP)
NAKANO MASARU (JP)
Application Number:
PCT/JP2000/003580
Publication Date:
December 14, 2000
Filing Date:
June 01, 2000
Export Citation:
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Assignee:
YASKAWA DENKI SEISAKUSHO KK (JP)
ZHANG WENNONG (JP)
KAKO YASUHIKO (JP)
OKUBO TADASHI (JP)
NAKANO MASARU (JP)
International Classes:
G05B19/19; G05B19/21; G05D3/12; (IPC1-7): G05D3/12
Foreign References:
JPH0322114A1991-01-30
JPH03107385A1991-05-07
JPH06318115A1994-11-15
JPH0695744A1994-04-08
JPH0332550A1991-02-13
Other References:
See also references of EP 1184766A4
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