Switching amplifier having digital correction and method therefor

摘要

A switching amplifier (15) includes a power stage (18) and a digital correction circuit (16). The digital correction circuit (16) is for correcting nonlinearity and power supply noise introduced into a digital signal during power stage amplification. The digital correction circuit (16) receives a digital pulse modulated input signal from a processor (14) and an amplified pulse modulated output signal from the power stage (18), and performs a discrete-time pulse edge correction on the digital pulse modulated input signal to provide a corrected digital pulse modulated signal. The corrected digital pulse modulated signal is used as an input for the power stage (18).