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Data access arrangement using a high frequency transformer for electrical isolation

  • US 20030215020A1
  • Filed: 05/14/2002
  • Published: 11/20/2003
  • Est. Priority Date: 05/14/2002
  • Status: Active Grant
First Claim
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1. An electrical isolation barrier for use in a data access arrangement, comprising, in combination:

  • An input circuit and an output circuit;

    An HF transformer for providing electrical isolation between the input circuit and the output circuit and having a frequency range of desired operation, said transformer having two ports;

    A modulator having an input and an output, said modulator input capable of being connected to the input circuit, said modulator modulating the input signal to frequencies within the frequency range of the transformer;

    said modulator output connected to the first port of the transformer to supply the modulated signals to the transformer;

    A demodulator having an input and an output, said demodulator input connected to the second port of the transformer, said demodulator demodulating signals from the frequency range of the transformer to an output signal for use by the output circuit.

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