Electricity: motive power systems – Open-loop stepping motor control systems
Patent
1989-01-09
1989-12-26
Shoop, Jr., William M.
Electricity: motive power systems
Open-loop stepping motor control systems
318685, H02P 800
Patent
active
048900486
ABSTRACT:
A stepping motor controller supplies a pulsed input signal to a motor driver controlling rotation of a stepping motor. To accelerate or decelerate the motor, the controller linearly increases or decreases the frequency of the motor driver input signal at a rate proportional to a desired angular acceleration value conveyed in an input command. The controller includes a computer responding to a low frequency interrupt signal by periodicaly adding the acceleration value to an accumulated velocity value, adding the accumulated velocity value to an accumulated displacement value, and adjusting an output angular displacement value in accordance with the amount of overflow of the accumulated displacement value. A hardware accumulator responds to a high frequency clock signal by periodically incrementing an accumulated number by the output angular displacement value of the computer, the accumulator generating a pulse of the motor driver input signal whenever the accumulated number overflows.
REFERENCES:
patent: 4103216 (1978-07-01), Hayen
patent: 4587473 (1986-05-01), Turvey
patent: 4691154 (1987-09-01), Sato et al.
patent: 4737700 (1988-04-01), Doelver
Bergmann Saul M.
Shoop Jr. William M.
LandOfFree
Low torque ripple stepping motor controller circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Low torque ripple stepping motor controller circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low torque ripple stepping motor controller circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1578726