A feedback architecture for a PWM switching audio amplifier is, capable of
compensating the effects of the demodulation filter through at least two
feedback paths of the voltage applied to a load without degrading the
overall loop gain of the device. Each of the feedback paths may include a
respective network or filter for compensating a respective frequency pole
of the cascade low-pass filter+load and establishing a certain band pass.
These networks or filters may be passive networks.