Stepping motor drive unit

Details Stepping motor drive unit Stepping motor drive unit

1994-07-20

1997-04-29

Masih, Karen

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318 65, 318280, 318286, H02P 800

Patent

active

056252684

ABSTRACT:
A stepping motor drive circuit including a bridge circuit composed of energizing coils constituting a stepping motor and four transistors, and current value switching circuitry for selecting a value of current flow according to the rotation direction of the stepping motor. A value of constant current flow is determined according to the rotation direction of the stepping motor, so that the torque of the stepping motor is optimized relative to a load.

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