Electricity: motive power systems – Positional servo systems – Limit or end-stop control
Patent
1990-06-14
1992-04-14
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
Limit or end-stop control
318439, 318 61S, 310156, 310181, G05G 500
Patent
active
051051397
ABSTRACT:
A device which rotates an armature through a sequence of angular positions cyclically, using control of the current in a second stator winding while maximum current is applied to a first stator winding. The magnetic poles associated with the two windings are circumferentially offset from each other.
REFERENCES:
patent: 4316648 (1982-02-01), Lissack
patent: 4531079 (1985-07-01), Muller
patent: 4577139 (1986-03-01), Denhardt et al.
patent: 4656379 (1987-04-01), McCarty
patent: 4757224 (1988-07-01), McGee et al.
patent: 4843268 (1989-06-01), Hovorka
Martin David
Shoop Jr. William M.
Thackrey James D.
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