Network for simulating low-noise-temperature resistors

Details Network for simulating low-noise-temperature resistors Network for simulating low-noise-temperature resistors

1978-02-27

1979-11-27

Gensler, Paul L.

Wave transmission lines and networks

Negative resistance or reactance networks of the active type

333217, 330 61R, H03H 1100, H03H 504

Patent

active

041763319

ABSTRACT:
A class of two-terminal active networks which simulate low-noise-temperature resistors is disclosed. A single differential-input operational amplifier connected with a feedback resistor in an inverting amplifier configuration comprises the active element of the network. A resistive voltage divider feedback arrangement comprises the remainder of the circuit. Either positive or negative simulated resistors can be obtained with a wide range of equivalent resistance values and effective noise temperatures.

REFERENCES:
patent: 3921105 (1975-11-01), Brgelz
"Applications Manual for Computing Amplifiers for Modeling, Measuring, Etc."; Philbrick Researches, Inc.; Nimrod Press, Inc., Boston, 1966, p. 97.
"Electronic Cooling of Resistors"; by Hirakawa et al.; from Oral Presentation in Waterloo, Canada, Aug. 1977.

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