Control circuit for a DC motor

Electricity: motor control systems – Closed loop speed control system for dc motor with commutator – Analog armature control

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

318459, 3889281, H02P 118, H02P 308

Patent

active

052206343

ABSTRACT:
A DC power supply for a DC motor is controlled by a drive transistor. An "ON" state of the drive transistor is maintained by a comparator which compares a terminal voltage at a point between the DC motor and the drive transistor with a reference voltage supplied from the power supply. A clock pulse is applied to the drive transistor to make it periodically turn off in order to detect an induced voltage depending upon the rotation rate of the DC motor. The drive transistor returns to turn off upon stopping the rotating DC motor by force.
A regulator is provided between the power supply and the reference voltage. A restraint torque and a rotation rate control means are also provided.
Alternatively, a pulsating power supply is provided instead of the DC power supply and the clock.

REFERENCES:
patent: 3913002 (1975-10-01), Steigerwald et al.
patent: 3924166 (1975-12-01), Doeman
patent: 4233549 (1980-11-01), Dighe
patent: 4479077 (1984-10-01), Kemmel et al.
patent: 4494057 (1985-01-01), Hotta
patent: 4611154 (1986-09-01), Lambropoulos et al.
patent: 4633153 (1986-12-01), Thornton et al.
patent: 4905300 (1990-02-01), Bhagwat et al.
patent: 5051672 (1991-09-01), Yaguchi
patent: 5097186 (1992-03-01), Kokubu

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Control circuit for a DC 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 Control circuit for a DC motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control circuit for a DC motor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1049039

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.