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Chip-scale coils and isolators based thereon

  • US 7,545,059 B2
  • Filed: 02/09/2007
  • Issued: 06/09/2009
  • Est. Priority Date: 10/23/1997
  • Status: Expired due to Fees
First Claim
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1. A signal isolator comprising:

  • a first substrate;

    a first transformer formed on the first substrate including a first bottom winding and a second top winding;

    an input circuit operatively connected to drive the second winding of the transformer in response to a received input signal;

    an output circuit operatively connected to receive a signal from the first winding responsive to the drive from said input circuit and to generate an output signal responsive to said signal received from the first winding;

    a second input circuit operatively connected to drive the first winding; and

    a second output circuit operatively connected to receive a signal from the second winding responsive to the drive from the second input circuit,wherein at least one of the input circuits and one of the output circuits are not formed on the first substrate.

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