Title :
Improved sampling process for a digital, pulse-width modulated, class D power amplifier
Author :
Mellor, P.H. ; Leigh, S.P. ; Cheetham, B.M.G.
Author_Institution :
Sheffield Univ., UK
Abstract :
A pulse-width modulation sampling process has been derived which is suitable for implementation in an entirely digital system, but has a performance comparable with that of natural sampling. The new process introduces negligible distortion to audio bandwidth signals at pulse carrier frequencies of 176 kHz or above. As a result it should be possible to realise a high efficiency, high performance class D power amplifier
Keywords :
audio-frequency amplifiers; digital circuits; power amplifiers; pulse width modulation; audio bandwidth signals; digital class D power amplifier; pulse-width modulation; sampling process;
Conference_Titel :
Digital Audio Signal Processing, IEE Colloquium on
Conference_Location :
London
