| 摘要 |
PURPOSE: A power amplification system is provided to improve characteristics of a power amplifier. CONSTITUTION: A power amplification system(100) comprises a current amplifier(110), a power controller(120), a current controller(130), a bias controller(140), and a current adjustment unit(150). The power control unit provides driving voltages and driving currents corresponding to the set reference voltages to a power amplifier. The current controller controls the flow of control current corresponding to control power. The bias controller controls the bias current of the power amplifier according to power corresponding to the driving current. The current control unit controls the driving current of a power control unit according to the detected bias power detecting bias voltages corresponding to the bias current of the current amplifier.
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