Speed control circuit for a DC motor

Details Speed control circuit for a DC motor Speed control circuit for a DC motor

1993-10-29

1997-09-02

Martin, David S.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

388902, 388910, H02P 5168

Patent

active

056640480

ABSTRACT:
A speed control circuit for a DC motor includes a digital-to-analog (D/A) converter, a regulator/controller, and a control circuit which applies a compensating current to the DC motor that compensates for variations in loading applied to the motor. The regulator/controller compares a reference voltage provided by the D/A converter with a feedback signal provided by the motor to generate a signal to activate the control circuit, thus to supply a compensating current to the motor.

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