Driving device for a stepping motor

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

1987-08-06

1988-12-13

Shoop, Jr., William M.

Electricity: motive power systems

Open-loop stepping motor control systems

318685, H02P 800

Patent

active

047913452

ABSTRACT:
A driving device for controlling the driving frequency for a stepping motor includes a voltage control pulse generator for producing electrical pulses for driving the stepping motor. The pulse generator includes an RC network providing a time base for the pulse width and the operating frequency of the electrical pulses. The RC network includes at least one controllable resistance and a capacitor connected to control the controllable resistance by the charging and discharging of the capacitor.

REFERENCES:
patent: 4119901 (1978-10-01), Leenhouts
patent: 4119902 (1978-10-01), Newell
patent: 4489260 (1984-12-01), Matsushita
patent: 4673855 (1987-06-01), Boillat
patent: 4683409 (1987-07-01), Boillat
Search Report, European Patent Office, Mar. 27, 1987.

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