Patent ID: 8531240

Claim:
A radio frequency (RF) power amplification device for an RF transmission signal, comprising: a first voltage regulation circuit having a first voltage adjustment gain and configured to receive a voltage control signal, wherein the first voltage regulation circuit is operable to generate a first regulated voltage such that a first regulated voltage level of the first regulated voltage is adjusted in accordance with the voltage control signal level and the first voltage adjustment gain; a second voltage regulation circuit having a second voltage adjustment gain and configured to receive the voltage control signal, wherein the second voltage regulation circuit is operable to generate a second regulated voltage such that a second regulated voltage level of the second regulated voltage is adjusted in accordance with the voltage control signal level and the second voltage adjustment gain; a first threshold detection circuit configured to increase the first voltage adjustment gain when the second regulated voltage level of the second regulated voltage reaches a first threshold voltage level; and a power amplification circuit configured to amplify the RF transmission signal wherein the power amplification circuit comprises, a first amplifier stage operable to amplify the RF transmission signal in accordance with a first amplification gain and coupled so that the first amplification gain is set in accordance with the first regulated voltage level of the first regulated voltage, and, a second amplifier stage operable to amplify the RF transmission signal in accordance with a second amplification gain and coupled so that the second amplification gain is set in accordance with the second regulated voltage level of the second regulated voltage.