SYSTEM AND METHOD FOR SUPPLYING POWER TO A POWER AMPLIFER

摘要

A power supply for a radio frequency (RF) power amplifier that amplifies an RF input signal into an RF output signal and a method of operation in the power supply. The power supply comprises a first power converter to convert an input voltage to the power supply into a first supply voltage of the RF power amplifier. The power supply comprises a second power converter to receive the input voltage and the first supply voltage and to selectively convert either the input voltage or the first supply voltage into at least a portion of a second supply voltage of the RF power amplifier.

主权项

1. A radio frequency power amplifier system comprising:
a power amplifier configured to receive a radio frequency input signal and to provide an amplified radio frequency output signal, the power amplifier including a first stage and a second stage; a first power converter configured to receive a first input voltage and generate a first output voltage, the first power converter being configured to provide the first output voltage to the first stage and to the second stage responsive to a first mode of operation; and a second power converter configured to receive a second input voltage and generate a second output voltage, the second power converter being configured to provide at least a portion of the second output voltage to the second stage responsive to a second mode of operation.