Step motor driving circuit

Details Step motor driving circuit Step motor driving circuit

1978-03-01

1980-10-07

Truhe, J. V.

Electricity: motive power systems

Open-loop stepping motor control systems

318138, G05B 1940

Patent

active

042271355

ABSTRACT:
A step motor driving circuit for selectively effecting a rotational stepping of a rotor in a forward rotational direction or in a reverse rotational direction is provided. The driving circuit is coupled to the drive coil of a motor and is disposable into a first mode for applying, to the drive coil, a first drive signal for effecting a periodic rotation of the rotor in a first rotational direction. The drive circuit is further disposable into a second mode for applying to the drive coil a second drive signal for effecting a periodic rotation of the rotor in the opposite rotational direction. A mode select circuit is coupled to the drive circuit and is adapted to dispose the drive circuit into either a first or second mode to thereby select the direction of rotation of the rotor.

REFERENCES:
patent: 3304481 (1967-02-01), Saussele
patent: 4055785 (1977-10-01), Nakajima et al.
patent: 4066947 (1978-01-01), Nakajima et al.

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