Method for slaving a stepping motor and arrangement for practisi

Details Method for slaving a stepping motor and arrangement for practisi Method for slaving a stepping motor and arrangement for practisi

1982-03-25

1984-06-26

Rubinson, G. Z.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 368157, H02K 2904

Patent

active

044568665

ABSTRACT:
A method for slaving a stepping motor proposes several levels of width of the control pulses U in order to adapt the torque provided by the motor to the load imposed thereon. The method includes measurement of the induced voltage Ui during a time interval T.sub.Ui situated immediately before the end of the control pulse U if the duration of such pulse does not exceed a predetermined duration T.sub.n (FIG. 8) or within a gap T.sub.x opened in the control pulse U if such pulse does exceed said predetermined duration T.sub.n (FIG. 11).
The method may be applied to slaving stepping motors wherein the stator exhibits air gaps or saturable zones.

REFERENCES:
patent: 4158287 (1979-06-01), Nakajima et al.
patent: 4271496 (1981-06-01), Shida et al.
patent: 4300223 (1981-11-01), Marin et al.
patent: 4326278 (1982-04-01), Shida et al.
10th International Congress of Chromometry, Adaptive Controlled Drive System of Stepping Motor for Analog Quartz Watch by Makoto Veda et al., pp. 67-121; Sep. 14, 1979.

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