Patent ID: 8099066

Claim:
A transmitter power control system, comprising: a voltage detector configured to generate a voltage signal that is proportional to an output voltage of a power amplifier of a transmitter, the voltage detector including: a voltage scaler configured to scale the output voltage of the power amplifier using a voltage scaling ratio, wherein the voltage scaling ratio scales down the output voltage; and a voltage scaling ratio controller configured to adjust the voltage scaling ratio to maintain the voltage signal within a predetermined voltage range; a current detector configured to generate a current signal that is proportional to an output current of the power amplifier, the current detector including a current scaler configured to scale the output current using a predetermined current scaling ratio, wherein the predetermined current scaling ratio scales down the output current; a power detector configured to generate a power signal that is i) based on the current signal and the voltage signal, and ii) proportional to an output power of the power amplifier; and a power controller configured to generate a control signal to vary the output power based on a comparison of the power signal with at least one predetermined threshold.