Recording and reproduction apparatus

Details Recording and reproduction apparatus Recording and reproduction apparatus

1997-11-19

1999-01-05

Masih, Karen

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318569, 318600, 318254, 328138, 328439, H02P 800

Patent

active

058567356

ABSTRACT:
A riving current supply device for driving a stepping motor in micro steps supplies a driving current to the stepping motor for a predetermined time for each micro step, and after an elapse of this predetermined time, the driving circuit supplies a current which is smaller than the driving current and which generates a torque larger than the detent torque of the stepping motor.

REFERENCES:
patent: 5359271 (1994-10-01), Husher
patent: 5659234 (1997-08-01), Cresens

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