Logarithmic amplifier with sequentially limiting amplifier stage

Details Logarithmic amplifier with sequentially limiting amplifier stage Logarithmic amplifier with sequentially limiting amplifier stage

1990-11-09

1991-09-17

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307492, 307494, G06G 724, G06G 712

Patent

active

050498290

ABSTRACT:
In order to improve the large signal handling capability of a logarithmic amplifier comprising amplifier stages successively performing their limiting actions in response to an increase of the input signal, and an adder stage for the output signals of the amplifier stages, the signal of the amplifier stage which is the last to perform its limiting action in response to an increase of the signal is amplified by a value which is higher than that of the signals of the other amplifier stages.

REFERENCES:
patent: 3991301 (1976-11-01), Chaprnka
patent: 4090150 (1978-05-01), Vauchenauer
patent: 4691381 (1987-09-01), Bollard
patent: 4716316 (1987-12-01), Colin
patent: 4758793 (1988-07-01), Sheade et al.
Barber et al., "A True Logarithmic Amplifier for Radar IF Applications", IEEE Journal of Solid-State Circuits, vol. SC.15, No. 3, Jun. 1980, pp. 291-295.

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