POWER AMPLIFICATION DEVICE FOR RADIO TRANSMITTER, POWER AMPLIFICATION DEVICE CONTROLLING PROGRAM, AND POWER AMPLIFICATION METHOD FOR RADIO TRANSMITTER

摘要

PPROBLEM TO BE SOLVED: To provide a power amplification device for a radio transmitter suitable for performing effective power amplification. PSOLUTION: A power amplification device 4 is configured to comprise a wave-height value detection unit 4a, an absolute value calculation unit 4b, a conversion parameter table 4c, a multiplier 4d, a QPSK modulation unit 4e, a power source unit 4f, and a power amplification unit 4g. A conversion parameter is selected in accordance with an absolute value of a wave-height value calculated from the conversion parameter table 4c, an amplitude of a signal is converted by the parameter and the multiplier 4d, and only a power source voltage of a suitable level to the amplification is supplied by the power source unit 4f to the signal amplification unit 4g based on the absolute value of the calculated wave-height value. PCOPYRIGHT: (C)2004,JPO