Patent ID: 7692487

Claim:
A method of operating a switching amplifier having an input terminal and a pair of first and second output terminals, the method comprising: applying an input signal to the input terminal during a first period of time; sampling the input signal at a constant rate during the first period of time to generate a plurality of first pulses and applying the plurality of first pulses to the first output terminal during the first period of time; applying a plurality of second pulses to the second output terminal during the first period of time, wherein the number of second pulses are substantially equal to the number of first pulses; dithering the plurality of second pulses such that a rate of the second pulses is different than the constant rate during at least a portion of the first period of time; and pulse-width modulating the first pulses during the first period of time so that the widths of the first pulses are determined by the input signal.