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Amplification device incorporating limiting

  • US 10,171,043 B2
  • Filed: 10/05/2015
  • Issued: 01/01/2019
  • Est. Priority Date: 10/05/2015
  • Status: Active Grant
First Claim
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1. An amplification device, comprising:

  • an amplifier circuit comprising a signal input for an input signal to be amplified and a first signal output for a first output signal; and

    a limiter, wherein the limiter comprises;

    a differential amplifier comprising;

    a first differential amplifier input for a threshold control signal;

    a second differential amplifier input for a feedback signal; and

    a differential amplifier output for a threshold signal indicative of a difference between the threshold control signal and the feedback signal;

    a first diode having a first anode coupled to the first signal output and a first cathode coupled to the differential amplifier output; and

    a feedback stage coupled between the differential amplifier output and the second differential amplifier input, wherein the feedback stage is configured to generate the feedback signal dependent on the threshold signal.

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