System for a dual feedback translation loop for power amplifier feedback control

A system for controlling the output of a power amplifier, comprising:

• an upconverter translation loop, the upconverter translation loop including a first phase detector and a second phase detector, the upconverter translation loop also configured to provide a frequency specific modulated signal;
• a power amplifier configured to receive the frequency specific modulated signal;
• the first phase detector configured to receive a first feedback signal developed from an output portion of the translation loop;
• the second phase detector configured to receive a second feedback signal developed from an output portion of the power amplifier;
• a first charge pump configured to receive the output of the first phase detector during a first time period;
• and
• a second charge pump configured to receive the output of the second phase detector during a second time period, wherein the first time period and the second time period are controlled using the first charge pump and the second charge pump.

A computer readable medium having a program for controlling the output of a power amplifier, the program comprising logic configured to perform the steps of:

• providing a modulated signal to an upconverter translation loop, the translation loop providing a frequency specific modulated signal;
• providing the frequency specific modulated signal to a power amplifier;
• using a portion of an output of the translation loop to develop a first feedback signal and a portion of an output of the power amplifier to develop a second feedback signal;
• applying the first feedback signal to an input of the translation loop through a first phase detector during a first time period;
• applying the second feedback signal to an input of the translation loop through a second phase detector during a second time period;
• and
• controlling the first time period and the second time period using a first charge pump coupled to the output of the first phase detector and a second charge pump coupled to the output of the second phase detector.

A system for controlling the output of a power amplifier, comprising:

• means for providing a modulated signal to an upconverter translation loop, the translation loop providing a frequency specific modulated signal;
• means for providing the frequency specific modulated signal to a power amplifier;
• means for using a portion of an output of the translation loop to develop a first feedback signal and a portion of an output of the power amplifier to develop a second feedback signal;
• means for applying the first feedback signal to an input of the translation loop through a first phase detector during a first time period;
• means for applying the second feedback signal to an input of the translation loop through a second phase detector during a second time period;
• and
• means for controlling the first time period and the second time period using a first charge pump coupled to the output of the first phase detector and a second charge pump coupled to the output of the second phase detector.