AMPLIFYING DEVICE

摘要

A pulse modulating section generates a pulse modulation signal by pulse-modulating and amplifying the amplitude component of an input signal. A low-pass filter filters the pulse modulation signal from the pulse modulating section, and generates an amplified amplitude signal having the amplitude component amplified. An error correcting section generates a corrected amplitude signal by correcting the error of the amplified amplitude signal from the low-pass filter by using the amplitude component of the input signal. A synthesizing section generates an output signal by synthesizing the corrected amplitude signal from the error correcting section and the phase component of the input signal.