| 摘要 |
A circuit for controlling the output power of a transmitter including a power amplifier includes a pilot detection circuit for detecting the power of a pilot channel from an output of the amplifier. The pilot detection circuit provides a pilot power output signal reflective of the pilot channel power. A reference circuit provides a pilot power reference signal, and a comparator circuit compares the pilot power output signal and reference signal and provides a power level correction signal. A level adjustment circuit adjusts the power level of an input to the amplifier and uses the power level correction signal to vary the amplifier input to control the output power level of the amplifier.
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