Patent ID: 8019292

Claim:
A system for controlling amplifier power comprising: a voltage envelope detector receiving an attenuated voltage sense signal and generating a voltage envelope signal; a current envelope detector receiving an attenuated current sense signal and generating a current envelope signal; a controller receiving power level data and generating attenuation control data for one or more of the attenuated voltage sense signal and the attenuated current sense signal; a detector receiving the voltage envelope signal and the current envelope signal and generating a control signal based on the greater of the voltage envelope signal and the current envelope signal; a power amplifier level controller receiving the control signal and generating a power amplifier level control signal; and a variable gain amplifier coupled to the detector and the power amplifier level controller, the variable gain amplifier increasing a gain of the control signal when the attenuation control data decreases the attenuation for one or more of the voltage envelope signal or the current envelope signal.