Patent ID: 9041464
Filing Date: 2015-05-26
Classification: H03F,H04B,H04L

Abstract:
1. Circuitry for reducing power consumption, comprising: a power amplifier; a predistorter coupled to the power amplifier; a power supply coupled to the power amplifier; and a controller coupled to the power amplifier, to the predistorter and to the power supply, wherein the controller captures a transmit signal and a feedback signal concurrently, wherein the controller is configured to determine a minimum bias voltage for the power supply that enables the power amplifier to produce an amplified transmit signal in accordance with a requirement, wherein determining the minimum bias voltage comprises determining a next predistortion corresponding to a next bias voltage in a set of voltages, and wherein the controller is configured to decrease a current bias voltage if the next bias voltage and the next predistortion enable the power amplifier to produce the amplified transmit signal in accordance with the requirement.