Single phase bipolar stepping motor having two rotation senses

Details Single phase bipolar stepping motor having two rotation senses Single phase bipolar stepping motor having two rotation senses

1980-09-23

1983-05-10

Miska, Vit W.

Horology: time measuring systems or devices

Electrical time base

For reciprocating or oscillating element

318696, G04F 500, G05B 1940

Patent

active

043826938

ABSTRACT:
The invention comprises a single phase bipolar stepping motor in which the otor may rotate in both senses. A stator is provided having two windings. When these are connected in series and fed with a first type of alternating polarity pulses, the rotor turns in a preferred sense. When the windings are connected in parallel and fed by a second type of alternating polarity pulses of opposite phase to the first type the rotor turns in the opposite sense. The motor is applied to advantage in time setting arrangements for analog display timepieces.

REFERENCES:
patent: 3336516 (1967-08-01), Kellet
patent: 3504257 (1970-03-01), Smith
patent: 3810354 (1974-05-01), Naikaido et al.
patent: 4048548 (1977-09-01), Nakajima et al.
patent: 4144467 (1979-03-01), Nakajima et al.
patent: 4278926 (1981-07-01), Bartlett
patent: 4282464 (1981-08-01), Uzuka
patent: 4282472 (1981-08-01), Martin

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