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CIRCUIT CONFIGURATION FOR VOLTAGE STABILIZATION

  • US 20040100239A1
  • Filed: 11/17/2003
  • Published: 05/27/2004
  • Est. Priority Date: 05/17/2001
  • Status: Active Grant
First Claim
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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.

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