Driving device for a stepping motor

Details Driving device for a stepping motor Driving device for a stepping motor

1989-02-13

1990-09-25

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, 318599, 318341, 363124, 363 74, 363 25, H02P 800

Patent

active

049596012

ABSTRACT:
In a driving circuit for a stepping motor in which a phase current corresponding to a predetermined reference voltage is generated when an excitation signal for each phase of the stepping motor is being produced and a coil of the corresponding phase is excited by the phase current, the supply time of the phase current is controlled by the pulse signal of a pulse generator for varying the pulse width, thereby improving the rising state of the phase current.

REFERENCES:
patent: 4336484 (1982-06-01), Marimko
patent: 4495455 (1985-01-01), Araki
patent: 4661882 (1987-04-01), Presley

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