DC Motor controller

Details DC Motor controller DC Motor controller

1977-04-20

1979-05-08

Smith, Jr., David

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318318, G05B 501

Patent

active

041538633

ABSTRACT:
A speed and position controller for a DC motor, having SCR power circuits, has a digital computing device directly connected to the SCR firing circuits for controlling the SCR firing angle. A command signal in the form of a number is applied to the computing device from a tape reader or other command signal generator. An encoder, operatively connected to the shaft of the motor, furnishes a feedback pulse frequency indicative of motor speed to a counter. The computing device periodically samples the number in the counter for speed and position computations. The computed firing angles are compared with maximum firing angles loaded into the computing device to prevent excessive currents which could cause arcing or demagnetization.

REFERENCES:
patent: 3621354 (1971-11-01), Fawcett et al.
patent: 3803476 (1974-04-01), Reeve
patent: 3838325 (1974-09-01), Kobayashi et al.
patent: 3946293 (1976-03-01), Feld
Bose et al. "Digital Speed Control of a DC Motor with Phase-Locked Loop Rlation" IECI Proceedings 4-77 .

Affiliated with

Also associated with

Rating

DC Motor controller does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with DC Motor controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC Motor controller will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1235443