Speed control for a motor

Details Speed control for a motor Speed control for a motor

1975-02-12

1977-05-31

Dobeck, B.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318318, 318480, H02P 506

Patent

active

040272176

ABSTRACT:
The spindle motor for a flexible recording disk is connected to a disk with an annular track of optical markings which are scanned to derive therefrom a train of reset pulses for a counter counting higher frequency clock pulses. Reaching of a particular count state is ascertained for each reset cycle to obtain a train of pulses of constant duration with pauses inbetween, varying with motor speed. A steady signal linearly varying with motor speed is derived from that train, compared with a reference and used to controlthe motor.

REFERENCES:
patent: 3330149 (1967-07-01), Scott, Jr.
patent: 3370289 (1968-02-01), Hedgecock et al.
patent: 3731301 (1973-05-01), Davis
patent: 3766459 (1973-10-01), McIntosh et al.
patent: 3821604 (1974-06-01), Walrauen
patent: 3898545 (1975-08-01), Coppa et al.

Affiliated with

Also associated with

Rating

Speed control for a motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Speed control for a motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speed control for a motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-660892