Electricity: motive power systems – Limitation of motor load – current – torque or force
Patent
1997-10-14
1999-09-21
Ip, Paul
Electricity: motive power systems
Limitation of motor load, current, torque or force
318138, 318734, 318735, H02P 100
Patent
active
059558539
ABSTRACT:
A direct current motor for use in a closed-loop control system is disclosed that produces a time varying signal indicative of a position of the motor. An embodiment of the motor includes a rotating commutator having a plurality of slots, a plurality of windings, the number of windings corresponding to one more than the number of slots of the commutator, and a plurality of brushes that are configured so that application of a direct current voltage across the brushes causes the commutator to rotate.
A closed-loop control system is also disclosed that includes a direct current voltage source, a direct current motor in accordance with the present, a motor position signal source that generates a motor position signal for rotating the shaft of the direct current motor to a desired position, and a feedback circuit that corrects for any error in the desired position of the shaft of the direct current motor.
Further disclosed are methods of controlling a position of a direct current motor constructed in accordance with the present invention in a closed-loop feedback control system.
REFERENCES:
patent: 4078194 (1978-03-01), Johnson, Jr.
patent: 4341971 (1982-07-01), Tahara et al.
patent: 4594536 (1986-06-01), Tamagaki
patent: 4687961 (1987-08-01), Horber
patent: 4883999 (1989-11-01), Hendershot
patent: 5045742 (1991-09-01), Armstrong et al.
patent: 5089730 (1992-02-01), O'Connor et al.
patent: 5128577 (1992-07-01), Kobayashi
patent: 5196775 (1993-03-01), Harris et al.
patent: 5250867 (1993-10-01), Gizaw
patent: 5428276 (1995-06-01), Carobolante et al.
patent: 5432421 (1995-07-01), Kessler et al.
patent: 5442272 (1995-08-01), Schwartz
patent: 5703456 (1997-12-01), Cox
Eurpoean Search Report Dated Feb. 24, 1999. for related EPO Application No. 98300335. 1-2207.
Anderson Erik A.
Hewlett--Packard Company
Ip Paul
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