Patent ID: 8774739
Filing Date: 2014-07-08
Classification: H03G,H04B

Abstract:
1. A method for radio frequency (RF) power amplification, the method comprising: receiving a mode signal indicating one of a first mode and a second mode; operating an RF power amplifier in response to the mode signal and an RF input signal to be amplified, the power amplifier receiving power from an activated one of a first regulator system having a linear voltage regulator and a PFET pass device and a second regulator system having a DC-DC converter and an NFET pass device; activating the linear voltage regulator and the PFET pass device to supply power to the power amplifier while deactivating the DC-DC converter and the NFET pass device in response to a condition of the mode signal indicating the first mode; and activating the DC-DC converter and the NFET pass device to supply power to the power amplifier while deactivating the linear voltage regulator and the PFET pass device in response to a condition of the mode signal indicating the second mode.