CIRCUIT CONFIGURATION FOR VOLTAGE STABILIZATION
First Claim
1. A voltage stabilization circuit, comprising:
- a first signal line for carrying a signal superimposed with an interference signal;
a second signal line for carrying a signal;
an amplifier circuit for generating an antiphase signal from a difference between a stabilized reference signal and a signal derived from said interference signal, said antiphase signal being in phase opposition with respect to said interference signal, said amplifier circuit including a first input;
an active matching circuit for potential matching, said matching circuit connected downstream from said amplifier circuit, said matching circuit for generating a compensation signal from said antiphase signal, said compensation signal being superposed on said signal superimposed with said interference signal; and
a reference circuit for generating said stabilized reference signal, said reference circuit connected upstream from said amplifier circuit, said reference circuit designed as a low-pass filter connected between said first signal line and said second signal line, said reference circuit including a center tap connected to said first input of said amplifier circuit for providing said stabilized reference signal to said first input of said amplifier circuit;
said low-pass filter designed as a multistage filter or as a higher-order filter.
1 Assignment
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Accused Products
Abstract
A voltage stabilization circuit is configured between two signal lines. Each of the signal lines carries a signal, and an interference signal is superimposed on at least one of the signals. The voltage stabilization circuit includes an amplifier circuit that provides an anti-phase signal obtained as an amplified difference between the interference signal and a reference signal. The anti-phase signal has a phase that is opposite the phase of the interference signal. The configuration further includes a matching circuit, which is connected in series with the amplifier circuit, and which generates a compensation signal from the anti-phase signal and superimposes the compensation signal on the signal that is superimposed with the interference signal.
9 Citations
14 Claims
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1. A voltage stabilization circuit, comprising:
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a first signal line for carrying a signal superimposed with an interference signal;
a second signal line for carrying a signal;
an amplifier circuit for generating an antiphase signal from a difference between a stabilized reference signal and a signal derived from said interference signal, said antiphase signal being in phase opposition with respect to said interference signal, said amplifier circuit including a first input;
an active matching circuit for potential matching, said matching circuit connected downstream from said amplifier circuit, said matching circuit for generating a compensation signal from said antiphase signal, said compensation signal being superposed on said signal superimposed with said interference signal; and
a reference circuit for generating said stabilized reference signal, said reference circuit connected upstream from said amplifier circuit, said reference circuit designed as a low-pass filter connected between said first signal line and said second signal line, said reference circuit including a center tap connected to said first input of said amplifier circuit for providing said stabilized reference signal to said first input of said amplifier circuit;
said low-pass filter designed as a multistage filter or as a higher-order filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification