Control circuit for a stepping motor

Details Control circuit for a stepping motor Control circuit for a stepping motor

1985-03-14

1986-12-02

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 368157, H02P 800

Patent

active

046267603

ABSTRACT:
The control circuit comprises means for measuring current flow in the motor winding including an auxiliary transistor and means to form periodically a current mirror from such auxiliary transistor and one of the transistors coupled to the winding for applying thereto energization pulses, i.e. motor drive pulses, catch-up pulses or check pulses.

REFERENCES:
patent: 3560821 (1971-02-01), Beling
patent: 4227127 (1980-10-01), Fukaya et al.
patent: 4453194 (1984-06-01), Frankeny et al.
patent: 4544878 (1985-10-01), Beale et al.

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