公开(公告)号：US08400217B2

公开(公告)日：2013-03-19

申请号：US13461697

申请日：2012-05-01

申请人： Serge Francois Drogi ,  Martin A. Tomasz

发明人： Serge Francois Drogi ,  Martin A. Tomasz

IPC分类号： H03G3/20 ,  H03F3/04

CPC分类号： H03F1/0211 ,  H03F1/0227 ,  H03F1/302 ,  H03F1/3247 ,  H03F1/56 ,  H03F3/189 ,  H03F3/195 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/105 ,  H03F2200/192 ,  H03F2200/195 ,  H03F2200/204 ,  H03F2200/207 ,  H03F2200/375 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2200/435 ,  H03F2200/465 ,  H03F2200/504 ,  H03F2200/78 ,  H03G3/3042

摘要： A radio frequency (RF) power amplifier system adjusts the supply voltage provided to a power amplifier (PA) adaptively, responsive to the measured or estimated power of the RF output signal of the PA. The RF PA system includes a power amplifier (PA) which receives and amplifies an RF input signal to generate an RF output signal at a level suitable for transmission to an antenna. A PA supply voltage controller generates a supply voltage control signal, which is used to control the supply voltage to the final stage of the PA. The supply voltage control signal is generated responsive to the measured or estimated power of the PA RF output signal, and also may be responsive to a parameter indicative of impedance mismatch experienced at the PA output. By controlling this supply voltage to the RF PA, the efficiency of the PA is improved.

摘要翻译： 射频（RF）功率放大器系统响应于PA的RF输出信号的测量或估计功率，自适应地调整提供给功率放大器（PA）的电源电压。 RF PA系统包括功率放大器（PA），功率放大器（PA）接收和放大RF输入信号以产生适于传输到天线的电平的RF输出信号。 PA电源电压控制器产生电源电压控制信号，用于控制PA的最终级的电源电压。 电源电压控制信号响应于PA RF输出信号的测量或估计功率产生，并且还可以响应于指示在PA输出处经历的阻抗失配的参数。 通过控制RF PA的电源电压，PA的效率得到提高。