Patent ID: 6404280
Filing Date: 2002-06-11
Classification: H03F

Abstract:
A method for low-distortion power amplification, comprising the steps of:generating an error signal by comparing a feedback signal obtained from an amplified output signal at an output terminal of a power switching stage with one of an inputpulse-width modulated signal from a pulse-width modulation signal generator and a corrected pulse-width modulated signal at an input terminal of the power switching stage; and correcting each pulse of the input pulse-width modulated signal from the pulse-width modulation signal generator to result in the corrected pulse-width modulated signal that is provided to the input terminal of the power switching stage, said each pulse of the input pulse-width modulated signal being corrected by adjusting the phase thereof such that said each pulse of the input pulse-width modulated signal has a center that forms a predetermined time difference with a center of a corresponding pulse of the corrected pulse-width modulated signal, and by adjusting the width thereof according to the error signal.