公开(公告)号：US06850574B2

公开(公告)日：2005-02-01

申请号：US09854858

申请日：2001-05-14

申请人： Dale G. Schwent ,  Alexander W. Hietala

发明人： Dale G. Schwent ,  Alexander W. Hietala

IPC分类号： H03F3/189 ,  H03G1/00 ,  H03G3/20 ,  H03G3/30 ,  H04B1/04 ,  H04L27/20 ,  H04L27/36 ,  H04L25/03

CPC分类号： H03G3/3047 ,  H03G1/0088

摘要： RF amplifier control circuits for transmitters in mobile communication devices, combinations thereof and methods therefor. The control circuits include generally proportional and integral control circuits having an output coupled to a control input of an amplifier. An initial control signal is applied to the amplifier before a vector modulator output coupled an input thereof is at full output power. The vector modulator output is ramped to full output after applying the initial control signal. Thereafter, the initial control signal applied to the amplifier during ramping is corrected by integrating an output of the amplifier relative to a second reference signal with an integral control circuit coupled to the control input of the amplifier, the second reference signal is proportional to the ramping vector modulator output.

摘要翻译： 用于移动通信设备中的发射机的RF放大器控制电路，其组合及其方法。 控制电路包括具有耦合到放大器的控制输入端的输出的通常成比例且整体的控制电路。 在耦合其输入的矢量调制器输出处于全输出功率之前，将初始控制信号施加到放大器。 施加初始控制信号后，向量调制器输出斜坡变为全输出。 此后，通过将放大器的输出相对于第二参考信号与放大器的控制输入耦合的积分控制电路进行积分来校正在斜坡期间施加到放大器的初始控制信号，第二参考信号与斜坡成比例 矢量调制器输出。