Velocity feedback control of step motors

Details Velocity feedback control of step motors Velocity feedback control of step motors

1985-06-25

1987-11-24

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 368157, H02P 800

Patent

active

047091991

ABSTRACT:
In a control system for a step motor having a rotor and stator, small velocity coils are placed in the stator in quadrature to the main power phase windings. The velocity coils provide velocity feedback signals which are summed with current command signals to gradually damp the step motor. The damped step motor is effective in minimizing its rotor from oscillating about a desired stopping point.

REFERENCES:
patent: 4414496 (1983-11-01), Watanabe et al.
patent: 4516064 (1985-05-01), Oudet et al.

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