Control device for a step-by-step motor

Details Control device for a step-by-step motor Control device for a step-by-step motor

1973-09-05

1980-06-24

Jackmon, Edith S.

Horology: time measuring systems or devices

Chronological

318138, 318430, 318696, 368 76, 368 28, H04K 1924, G04C 300, H02K 3700

Patent

active

042088682

ABSTRACT:
Device for controlling a monophase rotary step-by-step motor supplying electric control pulses to the winding of the motor, comprising means for detecting the variation of the current passing through the motor winding at each control pulse, this detection means including means of interrupting the control pulse when a minimum appears in the current passing through the winding.

REFERENCES:
patent: 1985129 (1934-12-01), Wertz
patent: 3283236 (1966-11-01), Legg
patent: 3452263 (1969-06-01), Newell
patent: 3500103 (1970-03-01), Swain et al.
patent: 3577176 (1971-05-01), Kveithen
patent: 3662245 (1972-05-01), Newell
patent: 3757193 (1973-09-01), Inaba et al.
patent: 3767993 (1973-10-01), Yublonski
patent: 3806781 (1974-04-01), Berney

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