Auto-leveler circuit

Details Auto-leveler circuit Auto-leveler circuit

1977-05-04

1979-08-07

Dobeck, B.

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

318432, 19240, H02P 546, D02H 538

Patent

active

041639278

ABSTRACT:
A circuit for controlling the speed of a feed roller in a card or the like in which the sliver thickness is detected and a signal produced which is combined with signals representing feed and doff roller speeds, and a signal representing feed motor torque. The resulting signal is compared with a ramp signal to drive the feed motor so as to maintain sliver thickness at a desired value.

REFERENCES:
patent: 3742321 (1973-06-01), Bergman et al.
patent: 3938223 (1976-02-01), Grice
patent: 4099297 (1978-07-01), Hasegawa et al.

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