ERROR DRIVEN RF POWER AMPLIFIER CONTROL WITH INCREASED EFFICIENCY
摘要
A power amplifier controller for adjusting a supply voltage to a power amplifier. The power amplifier controller adjusts the supply voltage so that distortion in an RF output signal corresponds to a predetermined limit. An amplitude error signal is generated by the power amplifier controller which represents a difference between an RF output signal and an attenuated RF output signal. The AC components of the amplitude error signal are processed to generate a deviation signal that represents the distortion in the RF output signal. The supply voltage to the power amplifier is increased when the deviation signal exceeds a distortion level control signal, and decreased when the deviation signal drops below the distortion level control signal.
申请公布号
WO2008144154(A2)
申请公布日期
2008.11.27
申请号
WO2008US61176
申请日期
2008.04.22
申请人
QUANTANCE, INC.;DROGI, SERGE, FRANCOIS;VINAYAK, VIKAS;TOMASZ, MARTIN
发明人
DROGI, SERGE, FRANCOIS;VINAYAK, VIKAS;TOMASZ, MARTIN