Amplifier control circuit and method, and wireless communication device

Amplifier control circuit and method, and wireless communication device

  • CN 1,509,554 B
  • Filed: 04/18/2002
  • Issued: 06/06/2012
  • Est. Priority Date: 05/14/2001
  • Status: Active Grant
First Claim
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1. RF amplifier control circuit, it comprises:

  • Amplifier;

    Vector modulator, its output is connected to the input of said amplifier;

    Initial control signal is applied to the device in the control input of said amplifier;

    Said initial control signal is the estimation of the required signal level in the control input end of said amplifier, is used for when said vector modulator output reaches full output, providing specific output;

    Integral control circuit;

    Its control signal output is connected to the control input of said amplifier;

    Said integral control circuit has the reference input that is connected on the source that second reference signal is provided;

    The ratio that is output into of said second reference signal and said vector modulator;

    Said integral control circuit was configured between the oblique rising stage of the output of said vector modulator, proofreaied and correct the said initial control signal that is applied on the said amplifier through the output of said amplifier is carried out integration with respect to said second reference signal;

    AndThe output of said amplifier is connected to the input of said integral control circuit.

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