Motor control system

Details Motor control system Motor control system

1980-12-15

1983-01-04

Weldon, Ulysses

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318258, 318280, 318269, H02K 2720

Patent

active

043674356

ABSTRACT:
A digital servo control system for a d.c. motor to achieve stepping motor precision and a wider speed control range than either a conventional d.c. motor or a stepping motor, as may be typically utilized in an IV syringe pump. Motor position and direction sensing, as well as motor advance signals at the desired motor rate, condition motor advance and retard logic which, in turn, effects a unique counter-controlled motor drive subsystem to cause the d.c. motor to move forward, reverse, coast or slow down over a 1,000 to 1 speed control range.

REFERENCES:
patent: 3426262 (1969-02-01), Colter
patent: 3746958 (1973-07-01), Leenhouts
patent: 3766458 (1973-10-01), Nishimura et al.
patent: 3914677 (1975-10-01), MacWade et al.
patent: 4087732 (1978-05-01), Pritchard
patent: 4191187 (1980-03-01), Wright
patent: 4228396 (1980-10-01), Palombo et al.

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