Electricity: motive power systems – Open-loop stepping motor control systems
Patent
1987-03-04
1988-05-24
Shoop, Jr., William M.
Electricity: motive power systems
Open-loop stepping motor control systems
318685, H02P 800
Patent
active
047468491
ABSTRACT:
A two wire control circuit for a bidirection variable speed stepping motor having motor drive logic adjacent to the motor. The control signals are momentary pulses which are superimposed on the supply line. The very short duration pulses are not recognized by the motor, but are used to trigger the sequence of the motor drive logic and through a low pass filter, the same modulated power supply line can power the drive logic.
REFERENCES:
patent: 4476421 (1984-10-01), Moriguchi
Bergmann M.
Haken Jack E.
North American Philips Corporation
Shoop Jr. William M.
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