Method and device for controlling a stepping motor by interrupti

Details Method and device for controlling a stepping motor by interrupti Method and device for controlling a stepping motor by interrupti

1991-11-01

1994-01-18

Shoop, Jr., William M.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318805, 368157, 368160, G04F 510

Patent

active

052802264

ABSTRACT:
A method and device for controlling a stepping motor having a coil and a rotor with a permanent magnet magnetically coupled to the coil. A drive pulse is applied to the coil each time the rotor has to turn by one step, and a representation of the quantity of mechanical energy supplied by the motor is measured during this drive pulse. The instant when the representation of the mechanical energy passes through its maximum value is detected, and the drive pulse is interrupted at this instant. The method and device increase the operating reliability of the stepping motor.

REFERENCES:
patent: 4439717 (1984-03-01), Berney
patent: 4446413 (1984-05-01), Remus et al.
patent: 4507599 (1985-03-01), Gueria
patent: 4568867 (1986-02-01), Remus et al.
patent: 4715725 (1987-12-01), Kawamura et al.
patent: 4772840 (1988-09-01), Taghezout
French Search Report Jul. 1991.

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