Method of driving a stepping motor and a drive circuit thereof

Details Method of driving a stepping motor and a drive circuit thereof Method of driving a stepping motor and a drive circuit thereof

1983-06-27

1984-12-18

Truhe, J. V.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02K 2904

Patent

active

044892608

ABSTRACT:
A motor drive circuit includes ROM in which a plurality of driving speed patterns are stored, a RAM for storing step data indicative of the number of driving rotational steps, and a data processing circuit for supplying motor driving data to a motor control unit in accordance with one of the driving speed patterns selected on the basis of the step data in the RAM. A series of step timing data is included in each of the driving speed patterns. The data processing circuit sequentially reads out the series of step timing data related to the selected driving speed pattern from the ROM and supplies the motor driving data to the motor control unit each time the period of time corresponding to this read-out step timing data elapses.

REFERENCES:
patent: 4156170 (1979-05-01), Strunc

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