DC shunt (or compound) motor and its related circuit with contro

Details DC shunt (or compound) motor and its related circuit with contro DC shunt (or compound) motor and its related circuit with contro

1994-03-14

1996-10-29

Martin, David S.

Electricity: motive power systems

Field or secondary circuit control

Plural, diverse or diversely connected or controlled field...

318247, 318252, H02D 500

Patent

active

055699928

ABSTRACT:
A DC shunt or compound motor, in which an armature current detection device, provided to increase the current in the shunt field winding following an increase in armature load current, causes the motor to have characteristics similar to a series motor until a maximum setting value is reached, at which time the speed is held constant with increasing torque as is characteristic of a shunt-type motor. Below a minimum speed, the torque also increases as in a conventional shunt-type motor.

REFERENCES:
patent: 3820000 (1974-06-01), Smith
patent: 3991349 (1976-11-01), Watson et al.
patent: 4114076 (1978-09-01), Teranishi
patent: 4119898 (1978-10-01), Morton et al.
patent: 4138629 (1979-02-01), Miller et al.
patent: 4142135 (1979-02-01), Fujita
patent: 4267492 (1981-05-01), Manners
patent: 4751439 (1988-06-01), Buchwald et al.

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