Charge preamplifier

Details Charge preamplifier Charge preamplifier

1974-11-26

1976-07-27

Rolinec, R. V.

Amplifiers

Signal feedback

Combined with control of bias voltage of signal amplifier

307235T, 307296, 330 18, 330 23, 330 26, 330 59, H03F 316

Patent

active

039720047

ABSTRACT:
The charge preamplifier comprises an input stage driven by the signal to be amplified, the input stage being connected to an amplification stage associated with an output stage, and a circuit for applying optoelectronic feedback from the output to the input of the preamplifier. The input stage comprises a cooled field-effect transistor, the signal to be amplified being applied to the input gate of the transistor. The load resistance of the transistor is provided by a second field-effect transistor mounted in series with an inductance coil.

REFERENCES:
patent: 3286189 (1966-11-01), Mitchell et al.
patent: 3611173 (1971-10-01), Goulding et al.
Landis et al. -- "Pulsed Feedback Techniques for Semi-Conductor Detector Radiation Spectrometers" IEEE Transactions on Nuclear Science pp. 115-124, vol. NS-18, No. 1, Feb. 1971.
Kurz -- "Low-Noise Preamplifier for High Count Rates" IEEE Transactions on Nuclear Science, pp. 418-422, vol. NS-49, No. 3, June, 1972.
McQuaid -- "A High-Rate Direct Coupled Preamplifier for High Energy Ge Detector Systems," IEEE Transactions on Nuclear Science, pp. 396-402, vol. NS-19, No. 1, Feb. 1972.
Libs -- "Highresolving Power Load Preamplifier" l'Onde Electronique (France), pp. 1368-1371, vol. 47, No. 488 bis, Nov. 1967.

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