Power control system for a wireless communication unit,申请号US20040722296-传众专利搜索

Power control system for a wireless communication unit

申请公布号：US8014737(B2)

申请号：US20040722296

申请日期：2004.12.23

申请公布日期：2011.09.06

申请人：

FREESCALE SEMICONDUCTOR, INC.

发明人：PRATT PATRICK J.;MILYARD MICHAEL A.;SCHWARTZ DANIEL B.;WARDER PHILIP C.

分类号：H01Q11/12

主分类号：H01Q11/12

摘要：A wireless communication unit comprises a transmitter having an analogue feedback power control loop with an input and a power amplifier having a power amplifier output, where the analogue feedback power control loop is arranged to feedback a signal to the input to set an output power level of the transmitter. The wireless communication unit further comprises an outer digital loop operably coupled from the power amplifier output to the transmitter. In this manner, the inner analogue loop is used to linearise a response obtained from the power amplifier and an outer digital loop wherein the outer digital loop controls the inner analogue loop with regard to saturation detection and correction as well as facilitating multi-mode operation of the wireless communication unit.