Motor control circuit

Details Motor control circuit Motor control circuit

1996-10-31

1999-10-26

Martin, David

Electricity: motive power systems

Induction motor systems

Primary circuit control

318751, 318788, H02P 142

Patent

active

059734736

ABSTRACT:
A control circuit that activates and deactivates a motor start winding at different motor rpm trip points provides improved accuracy in the trip points by automatically compensating for changes in motor current caused by variations in line voltage and motor winding temperature.

REFERENCES:
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patent: 4047082 (1977-09-01), Scheuer et al.
patent: 4375613 (1983-03-01), Fuller et al.
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patent: 4622506 (1986-11-01), Shemanske et al.
patent: 4658195 (1987-04-01), Min
patent: 4804901 (1989-02-01), Pertessis et al.
patent: 4843295 (1989-06-01), Thompson et al.
patent: 5589753 (1996-12-01), Kadah et al.
patent: 5689168 (1997-11-01), Bogwicz et al.

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