DYNAMISCHE STROMVERSORGUNG FÜR HF LEISTUNGSVERSTÄRKER

摘要

The present invention provides a subscriber unit that receives data and a transmit power control (TPC) signal over a wireless communication downlink signal, comprising: an RF power amplifier (12) with a bias point for amplifying the communication signal to produce an RF output signal; a detector (14), for receiving said communication signal and removing modulation components from said communication signal to provide a detector output signal; a converter (16), coupled to said detector, configured to process said TPC signal and said detector output signal to generate a current signal; and a current mirror (18) for receiving said current signal and a feedback from said RF output signal and for comparing said current signal with said feedback to produce a bias signal; whereby said bias point of the RF amplifier is dynamically adjusted responsive to said bias signal.