Rotation control apparatus employing a comb filter and phase err

Details Rotation control apparatus employing a comb filter and phase err Rotation control apparatus employing a comb filter and phase err

1994-06-21

1995-12-26

Wysocki, Jonathan

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Field control, or field and armature control, by analog...

318254, 73862192, H02P 700

Patent

active

054795567

ABSTRACT:
A rotation control apparatus employing a comb filter to cut off a specified frequency and multiples thereof in response to speed error data detected from a rotation detector. A phase error detector detects a phase error between the rotation detector and an external vertical synchronization pulse. A differentiator converts the output of the filter into angular acceleration error data. The output of the phase error detector is integrated. The two values are scaled and converted to an analog signal which is utilized to drive a motor.

REFERENCES:
patent: 3974428 (1976-08-01), Hafle
patent: 4353016 (1982-10-01), Born
patent: 4455513 (1984-06-01), Fulton et al.
patent: 4591767 (1986-05-01), Koide
patent: 4740736 (1988-04-01), Sidman et al.
patent: 4804894 (1989-02-01), Machida et al.
patent: 4868479 (1989-09-01), Byong-Ho et al.
patent: 5113125 (1992-05-01), Stacey
patent: 5371449 (1994-12-01), Tajima et al.

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