Patent ID: 9160284
Filing Date: 2015-10-13
Classification: H03F

Abstract:
1. A method comprising: determining an optimized quiescent drain current value for a drain current of a power amplifier while the power amplifier is operating under an operational parameter and while a power amplifier input signal received by the power amplifier is based on a first non-predistorted signal; storing the optimized quiescent drain current value as saved drain current data; determining a set of calibrated drain current values for the drain current, the set of calibrated drain current values being calibrated for a set of power levels for a power amplifier output signal while the power amplifier is operating under the operational parameter and while the power amplifier input signal received by the power amplifier is based on a second non-predistorted signal; storing the set of calibrated drain current values in the saved drain current data; comparing a present drain current value of the drain current to a particular drain current value in the saved drain current data while the power amplifier input signal received by the power amplifier is based on a predistorted signal; determining whether the comparing the present drain current value to the particular drain current value satisfies a condition; and adjusting the drain current based on the particular drain current value if the condition is determined to be satisfied.