Amplifier having polygonal-line characteristics employing two co

Details Amplifier having polygonal-line characteristics employing two co Amplifier having polygonal-line characteristics employing two co

1991-09-27

1992-05-19

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307358, 307362, 307268, H03K 524, H03K 501

Patent

active

051151529

ABSTRACT:
A polygonal-line characteristic amplifier has a minimum-voltage dsicrimination circuit, a maximum-voltage discrimination circuit and a resistor dividing circuit. The minimum-voltage discrimination circuit detects and outputs a lower one of an input voltage and a predetermined reference voltage respectively applied to two non-inverting input terminals thereof. The maximum-voltage discrimination circuit detects and outputs a higher one of an output from the minimum-voltage discrimination circuit and a resistor divided voltage of the input voltage produced by the resistor dividing circuit respectively inputted to two non-inverting input terminals thereof. The maximum-voltage discrimination circuit outputs at its output terminal an output voltage having polygonal-line characteristics corresponding to the input signal applied to a signal input terminal. Since the voltage gain of the amplifier is low when the level of the input signal is high, the output voltage does not exceed its maximum value to thereby make a dynamic range large against the input level.

REFERENCES:
patent: 3743950 (1973-07-01), Sellari et al.
patent: 4998026 (1991-03-01), King
patent: 5041795 (1991-08-01), Bowers

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