Electricity: motive power systems – Positional servo systems – 'reset' systems
Reexamination Certificate
2006-04-11
2006-04-11
Ip, Paul (Department: 2837)
Electricity: motive power systems
Positional servo systems
'reset' systems
C318S560000, C318S610000, C318S629000, C318S632000
Reexamination Certificate
active
07026779
ABSTRACT:
A motor control apparatus of the present invention comprises a velocity detector for detecting a rotation velocity of a mover of a motor, a position detector for detecting a position of the mover, a differentiator for performing time differentiation with respect to the position detected by the position detector to obtain a velocity calculation value, a feedback signal generating circuit for generating a feedback signal including the velocity detection value obtained by the velocity detector as a high frequency component and the velocity calculation value obtained by the differentiator as a low frequency component, and a linear amplifier and an integrating amplifier for performing PI control, the linear amplifier and the integrating amplifier performing linear amplification and integrating amplification of a difference between the velocity instruction and the feedback signal, respectively.
REFERENCES:
patent: 6274994 (2001-08-01), Tsutsui
patent: 6515442 (2003-02-01), Okubo et al.
patent: 6590358 (2003-07-01), Tsutsui
patent: 1209982 (1989-08-01), None
patent: 2000228893 (2000-08-01), None
Gauthier & Connors LLP
Ip Paul
Okuma Corporation
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