Method and device for driving a self-timing stepping motor

Details Method and device for driving a self-timing stepping motor Method and device for driving a self-timing stepping motor

1997-07-30

2000-10-03

Martin, David

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318696, G05B 1940

Patent

active

061277967

ABSTRACT:
For driving a self-timing stepping motor which can be decelerated by an external load, a driving device presets a target step frequency and the motor is started with this target step frequency. The actual rotational speed of the stepping motor is determined and, as a function of this determined rotational speed, the target step frequency is changed when the rotational speed falls below a preset actual rotational speed of the stepping motor for a preset time interval.

REFERENCES:
patent: 4328450 (1982-05-01), Gabor
patent: 5245359 (1993-09-01), Ito et al.
patent: 5467173 (1995-11-01), Sakata et al.
patent: 5793177 (1998-08-01), Chia

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