Preamplifier for amplifying signal voltages from a signal source

Details Preamplifier for amplifying signal voltages from a signal source Preamplifier for amplifying signal voltages from a signal source

1997-06-04

2000-03-21

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including particular power supply circuitry

330 68, H03F 304

Patent

active

060407417

ABSTRACT:
A preamplifier for amplifying signal voltages from a signal source with high source impedance has a signal input connected to the signal source, a first supply voltage terminal connected to the first power supply voltage potential, a second supply voltage terminal connected to a second power supply voltage potential and a signal output supplying an output signal. In this preamplifier, the first and second power supply voltage potentials can be shifted in parallel depending on the output signal. Alternatively or cumulatively, a known preamplifier may be developed so that the potential of a shield for the signal source can be controlled by the output signal.

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patent: 5216382 (1993-06-01), Ito
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Hichman I: "Bootstrap Base To Bridge Building"; Electronics World and Wireless World, Bd. 98, Nr. 1678, Oct. 1, 1992, pp. 868-870, XP000315544.

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