Device for controlling working point of quasi-linear operating power amplifiers for HF useful signals, uses control signal derived from output signal from second control loop

摘要

A device for controlling the working point of at least one power amplifier, adjusts the compression degree for this amplifier (104) by means of a control signal (SS1) in a first control loop (102). The control signal (SS1) is obtained as the output signal of a second control loop (103), consisting of a control branch and a feedback branch (RZ2).