Hybrid step motor system

Electricity: motive power systems – Plural – diverse or diversely controlled electric motors – Mechanically coupled in fixed ratio of movement

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318685, 318696, H02P 546

Patent

active

039612325

ABSTRACT:
A hybrid step motor system, in which a first step motor which steps A degrees per step and is provided with a load output shaft, has its stator driven by a second step motor which steps A/10.degree. per step, so that the system has a resolution of A/10.degree., when the motors are cascaded, but attains a given angular setting substantially in the time required by the first step motor to attain that setting.

REFERENCES:
patent: 2896143 (1959-07-01), Bekey
patent: 3268785 (1966-08-01), Gerber et al.
patent: 3375422 (1968-03-01), Boudiques
patent: 3404323 (1968-10-01), Gifford
patent: 3453510 (1969-07-01), Kreufer et al.

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