POWER AMPLIFIER SYSTEM

摘要

PURPOSE: A current amplification system is provided to improve the efficiency of a power amplification system by improving characteristics of a power amplifier. CONSTITUTION: A first regulator(110) generates driving voltages and driving currents corresponding to the set first reference voltages. A current control unit(120) controls the flow of a control current corresponding to the applied control voltage. A bias controller(130) controls the bias current of a voltage amplifier according to voltages corresponding to the driving currents. A second regulator(140) generates power voltages corresponding to the set second reference voltages.