Interpolating stepping 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

040925684

ABSTRACT:
A driven load is advanced to a selected position by the rotor of a large angle step motor, the housing of which is driven by a small angle step motor having a stationary housing. Driving pulses are fed to the plural phase windings associated with the large angle step motor under control of digital logic, by means of a slip ring assembly. Driving pulses are also fed to the plural phase windings of the small angle step motor under control of the same digital logic.

REFERENCES:
patent: 3961232 (1976-06-01), Newell

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