Power amplifier device that controls envelope tracking modulator and adapts static voltage

摘要

The present invention relates to a power amplifier device, which is operable to receive an input signal (si) and provide an amplified output signal (so) according to a control signal (ctrl). ), An envelope tracking modulator (ET) that provides a control signal (ctrl) according to a static voltage (VS) and a dynamic voltage (VD), and a static voltage (VS) over a predetermined duration A power supply providing the static voltage and the dynamic voltage according to measurements performed on the amplified output signal by a power sensor (PS) as determined as an average value of the output signal (so) (S).