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Method and system for canceling feedback current in an amplifier system

  • US 7,881,001 B1
  • Filed: 08/15/2008
  • Issued: 02/01/2011
  • Est. Priority Date: 08/30/2004
  • Status: Expired due to Fees
First Claim
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1. A method for providing feedback current cancellation, the method comprising:

  • providing an amplifier with an input, an output, and at least one stage;

    receiving an input signal at the input of the amplifier;

    feeding back a first current based on the output of the amplifier to the input of the amplifier;

    feeding back a second current to the output of the amplifier;

    substantially cancelling the first current by supplying a third current to the input of the amplifier; and

    substantially cancelling the second current by supplying a fourth current to the output of the amplifier.

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