Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-06-28
1994-04-19
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307351, 307359, H03K 5153, H03K 508
Patent
active
053049390
ABSTRACT:
A peak detector circuit employs a line receiver of the ECL type, with the analog input signal to be tracked as a receiver input. The other receiver input is connected to the circuit output. A capacitor connects the output node of the circuit to threshold reference voltage input. The capacitor is charged through a resistor from the output of the line receiver when the input signal exceeds the voltage on the output node, and the capacitor discharges to the reference input through this resistor and another resistor connecting the receiver output to the reference input. The output voltage tracks the peaks of the input signal. Oscillation of the receiver is avoided by using a threshold reference greater than zero. The dynamic range of the output can be extended to a level higher than that of ECL levels by summing the thresholds of a number of these detectors, using an operational amplifier.
REFERENCES:
patent: 3509371 (1970-04-01), Rice
patent: 4376266 (1983-03-01), Raffoux
patent: 4533844 (1985-08-01), Miller et al.
patent: 4605867 (1986-08-01), Veehof
patent: 4686389 (1987-08-01), Seifert
patent: 4751468 (1988-06-01), Agoston
patent: 4814714 (1989-03-01), Beadle
patent: 4866301 (1989-09-01), Smith
patent: 4906864 (1990-03-01), McCorkle
patent: 4987323 (1991-01-01), Fujita
J. W. Allen, "Amplitude Measurement Circuits" IBM Tech. Discl. Bulletin vol. 17, No. 8, Jan. 1975 pp. 2429-2430.
Q. A. Rice, "Peak detector with linear decay" New Electron. (G.B.) vol. 10, No. 22, Nov. 15, 1977 p. 43.
Digital Equipment Corporation
Zazworsky John
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