Method of controlling a stepper motor

Details Method of controlling a stepper motor Method of controlling a stepper motor

1975-04-28

1978-02-07

Rubinson, Gene Z.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, G05B 1940

Patent

active

040728889

ABSTRACT:
Method and apparatus for controlling a stepping motor by storing in a memory, delay time values for the application of motor advance pulses and using motor feedback pulses to access the memory and read out corresponding time delay values after each of which a motor advance pulse is to be generated. The stored time delay values are optimized as to phase angle for the motor advance pulses for acceleration, constant run and deceleration modes of the motor after consideration of motor characteristics and load. Not all feedback pulses have a corresponding time delay value and certain feedback pulses may have two or more time delay values stored therefor. Also disclosed are improved motor coil switching circuits.

REFERENCES:
patent: 3435314 (1969-03-01), Bradley et al.
patent: 3643146 (1972-02-01), Ferguson et al.
patent: 3813592 (1974-05-01), Ryberg
patent: 3816656 (1974-06-01), Ludwig
patent: 3818261 (1974-06-01), Clarke, Jr.
patent: 3863118 (1975-01-01), Lander et al.

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