Method and circuit for operating a stepping motor

Details Method and circuit for operating a stepping motor Method and circuit for operating a stepping motor

1990-02-02

1991-07-16

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 400903, H02P 800

Patent

active

050327810

ABSTRACT:
In a method and circuit for operating a stepping motor having several windings, and wherein a movement of the stepping motor induces a voltage in a winding which is not required at the time for generating a propulsive force, the induced voltage is evaluated. After the stepping motor is connected, the stepping motor is operated in a predetermined direction, whereupon a stopping of the stepping motor is detected by the absence of the induced voltage. A memory containing the instantaneous position of the stepping motor is then set to a predetermined value.

REFERENCES:
patent: 4282471 (1981-08-01), Budniak et al.
patent: 4449086 (1984-05-01), Hoffmann et al.
patent: 4602822 (1986-07-01), Akazawa
patent: 4683410 (1987-07-01), Kressirer et al.

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