Controller for a step motor

Details Controller for a step motor Controller for a step motor

1993-04-19

1995-02-14

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

Digital or numerical systems

318696, G05B 1106

Patent

active

053898664

ABSTRACT:
A controller for a step motor which permits the actual step number of the step motor to properly follow up the target step number may be varied with time. The controller temporarily determines a duration shorter than an actually derived duration, and checks the target step number again when the temporarily determined duration has elapsed. If the target step number has not changed, the actually derived duration is considered as a finally determined duration, while, if the target step number has changed, the duration of energization is re-derived from the changed target step number.

REFERENCES:
patent: 4523138 (1985-06-01), Sakaurai
patent: 4636959 (1987-01-01), Salazar et al.
patent: 4636969 (1987-01-01), Salazar et al.
patent: 4685434 (1987-08-01), Ando et al.

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