Method of minimizing resonance in stepping motor and improved dr

Details Method of minimizing resonance in stepping motor and improved dr Method of minimizing resonance in stepping motor and improved dr

1980-02-27

1981-11-24

Dobeck, B.

Electricity: motive power systems

With signals, meters, recorders or testing devices

324158MG, 318702, 318696, H02D 540

Patent

active

043027121

ABSTRACT:
A stepping motor driver is adjusted to minimize resonance by adjusting a variable frequency source to adjust the fundamental frequency of the drive to the frequency of a filter, driving the driver and motor with the adjusted frequency source, sensing the motion of the motor and providing the sensed motion to an indicator through the filter. The driver is adjusted to minimize the indication. Adjustment at various harmonics are performed by using 1/N the adjusted frequency, where N is the harmonic of interest.
The improved driver includes a plurality of voltage sources adjustable for resonance compensation at the fundamental frequency and 1/N thereof. DC offset, relative gain and orthogonality of the motor driver signal adjustments are provided.

REFERENCES:
patent: 3800199 (1974-03-01), Weigand
patent: 3813589 (1974-05-01), Boice
patent: 4091316 (1978-05-01), Friedman
patent: 4100471 (1978-07-01), Pritchard
patent: 4115726 (1978-09-01), Patterson et al.
patent: 4140956 (1979-02-01), Pritchard
patent: 4219767 (1980-08-01), Wimmer

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