Limiting amplifier with adjustable limits

Details Limiting amplifier with adjustable limits Limiting amplifier with adjustable limits

1975-07-24

1976-12-21

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307235N, 307235T, 307264, 328171, 328175, H03K 508

Patent

active

039990842

ABSTRACT:
A limiting amplifier includes an operational amplifier with three feedback loops. One loop controls the gain of the amplifier when the output signal is between the upper and lower limit. Each of the other two feedback loops comprises the high gain summing amplifier in series with a diode, each summing amplifier comparing the output signal with one of the limit signals. The summing amplifiers insure hard limiting when the output signal tends to exceed the upper or lower limit.

REFERENCES:
patent: 3393369 (1968-07-01), Embley et al.
patent: 3482116 (1969-12-01), James
patent: 3849734 (1974-11-01), Grass
patent: 3875516 (1975-04-01), Thomas
patent: 3898573 (1975-08-01), Sherman
patent: 3955150 (1976-05-01), Soderstrand

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