Signal amplifier apparatus with fail-safe limited gain

Details Signal amplifier apparatus with fail-safe limited gain Signal amplifier apparatus with fail-safe limited gain

1976-02-26

1977-08-16

Mullins, James B.

Amplifiers

Signal feedback

Frequency responsive feedback means

H03F 134

Patent

active

040428885

ABSTRACT:
A signal amplifier and clipper apparatus is disclosed including two four terminal capacitors and an operational amplifier to obtain fail-safe voltage gain which will not increase due to the failure of any element of the apparatus. A signal clipping operation is provided by the saturation of the operational amplifier output at the supply voltages, such that a maximum output signal level is provided by a fail-safe attenuator operation that will not decrease.

REFERENCES:
patent: 3408507 (1968-10-01), Martin
patent: 3838353 (1974-09-01), Matty
"Active Filters with Gain", Electronic Engineering, Feb. 1972, pp. 54, 56.

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