Amplifier compression controller circuit

A power amplifier controller circuit for controlling a power amplifier, the power amplifier coupled to receive and amplify an input signal to generate an output signal, the power amplifier controller circuit comprising:

• an amplitude control loop to determine an amplitude correction signal indicative of an amplitude difference between an amplitude of the input signal and an attenuated amplitude of the output signal;
• a supply voltage or bias to the power amplifier responsive to the amplitude correction signal;
• and
• a variable gain amplifier to adjust the amplitude of the input signal based upon the amplitude correction signal and a level of the supply voltage or bias.

A power amplifier controller circuit for controlling a power amplifier, the power amplifier coupled to receive and amplify an input signal to generate an output signal, the power amplifier controller circuit comprising:

• an amplitude control loop to determine an amplitude correction signal indicative of an amplitude difference between an amplitude of the input signal and an attenuated amplitude of the output signal;
• and
• a supply voltage or bias to the power amplifier responsive to the amplitude correction signal;
• where a gain setting of the power amplifier is based upon the amplitude correction signal and a level of the supply voltage or bias.

A method of controlling a power amplifier coupled to receive and amplify an input signal to generate an output signal, the method comprising:

• generating an amplitude correction signal indicative of an amplitude difference between an amplitude of the input signal and an attenuated amplitude of the output signal;
• adjusting a power supply for the power amplifier in response to the amplitude correction signal;
• adjusting a gain setting of at least one of a variable gain amplifier and the power amplifier in response to the amplitude correction signal;
• and
• at least one of:
• adjusting the power supply for the power amplifier in response to the gain setting;
• and
• adjusting the gain setting in response to the power supply for the power amplifier.

A power amplifier controller circuit for controlling a power amplifier, the power amplifier coupled to receive and amplify an input signal to generate an output signal, the power amplifier controller circuit comprising

• means for generating an amplitude correction signal indicative of an amplitude difference between an amplitude of the input signal and an attenuated amplitude of the output signal;
• means for adjusting a power supply for the power amplifier in response to the amplitude correction signal;
• means for adjusting a gain setting of at least one of a variable gain amplifier and the power amplifier in response to the amplitude correction signal;
• and
• at least one of:
• means for adjusting the power supply for the power amplifier in response to the gain setting;
• and
• means for adjusting the gain setting in response to the power supply for the power amplifier.