发明授权
- 专利标题： System and method for power amplifier output power control
- 专利标题（中）： 功率放大器输出功率控制的系统和方法
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申请号： US11654744申请日： 2007-01-18
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公开(公告)号： US07733176B2公开(公告)日： 2010-06-08
- 发明人: Rahul Magoon , Ichiro Aoki , John Lyu , Scott Kee , Roberto Aparico Joo , Winfried Bakalski , Thomas Bruder
- 申请人： Rahul Magoon , Ichiro Aoki , John Lyu , Scott Kee , Roberto Aparico Joo , Winfried Bakalski , Thomas Bruder
- 申请人地址： DE Munich US CA Irvine
- 专利权人： Infineon Technologies AG,Axiom Microdevices, Inc.
- 当前专利权人： Infineon Technologies AG,Axiom Microdevices, Inc.
- 当前专利权人地址： DE Munich US CA Irvine
- 代理机构： Jackson Walker, L.L.P.
- 代理商 Christopher J. Rourk
- 主分类号： H03G3/20
- IPC分类号： H03G3/20
摘要：
A system for controlling amplifier power is provided. The system includes a voltage envelope detector that receives a voltage signal and generates a voltage envelope signal. A current envelope detector receives a current signal and generates a current envelope signal. A power amplifier level controller receives the greater of the voltage envelope signal and the current envelope signal, such as by connecting the output of the voltage envelope detector and the current envelope detector at a common point and conducting the high frequency current components to ground via a capacitor. A power amplifier level control signal is then generated based on the voltage drop across the capacitor.