Patent 8688061 was granted and assigned to Skyworks Solutions, Inc. on April, 2014 by the United States Patent and Trademark Office.
A system and method for biasing a power amplifier includes a power amplifier having a driver stage and an output stage, the driver stage having a plurality of driver devices, a bias current source configured to deliver a bias current to each of the plurality of driver devices, and a current directing element configured to receive the bias current and selectively bias each of the plurality of driver devices based on a reference voltage and a system voltage.