发明名称 |
POWER DETECTOR AND METHOD FOR DETECTING POWER |
摘要 |
A circuit and method are provided for detecting a power of a signal amplified in a power amplifier. A diode and a voltage bias source are used to shift a voltage of the signal taken at a base of an amplifying transistor of the power amplifier, to generate a positive signal. The positive signal is provided to a base input of an emitter follower exhibiting high input impedance to generate a power detector output which follows the positive signal.
|
申请公布号 |
US2013027023(A1) |
申请公布日期 |
2013.01.31 |
申请号 |
US201213632445 |
申请日期 |
2012.10.01 |
申请人 |
SIGE SEMICONDUCTOR, INC.;RABJOHN GORDON GLEN;GRUNDLINGH JOHAN;LONG ADRIAN PETER |
发明人 |
RABJOHN GORDON GLEN;GRUNDLINGH JOHAN;LONG ADRIAN PETER |
分类号 |
G01R21/00 |
主分类号 |
G01R21/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|