Current limiting control circuit for D.C. motors with line dropo

Details Current limiting control circuit for D.C. motors with line dropo Current limiting control circuit for D.C. motors with line dropo

1990-02-12

1991-10-29

Ro, Bentsu

Electricity: motive power systems

Motor load, armature current or force control during...

Initial, 'cracking' or 'starting from rest' torque control

318479, 388833, H02P 118

Patent

active

050618849

ABSTRACT:
In accordance with a first embodiment of the invention, line dropout protection is provided for a d.c. motor wherein motor operation is prevented if power is applied at the time a main speed control device is not set in a zero position. Re-enabling motor operation is simply provided by resetting the motor speed control device to a zero position and reapplying power.
In accordance with the second embodiment of the invention, line dropout protection is provided for a d.c. motor wherein predetermined excess motor acceleration is prevented when power is applied to the d.c. motor. The instant invention prevents motor start-up under unexpected conditions, thereby clearly enhancing safety during operation of any device controlled by the d.c. motor.

REFERENCES:
patent: 3222586 (1965-12-01), Fontenote et al.
patent: 3670237 (1972-06-01), Hubel et al.
patent: 3745439 (1973-07-01), Belmuth
patent: 3849710 (1974-11-01), Mason
patent: 3849718 (1974-11-01), Forster et al.
patent: 3958164 (1976-05-01), Hess
patent: 4194145 (1980-03-01), Ritter
patent: 4196462 (1980-04-01), Pohl
patent: 4288828 (1981-09-01), Kuntner et al.
patent: 4541029 (1985-09-01), Ohyama
patent: 4764713 (1988-08-01), D'Atre et al.
patent: 4839570 (1989-06-01), Saganovsky

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