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A hardware design of a pulse width modulator and noise shaper suitable for converting digital audio data directly to an analogue signal is presented. Spectral analysis is used to compare with simulation results and theoretical performance. Results suggest that the combination of oversampled noise shaping used in conjunction with pulse width modulation can provide a realisable topology for an all digital power amplifier.
Author (s): Hiorns, R. E.; Goldberg, J. M.; Sandler, Mark B.
Affiliation:
King`s College, University of London, London , England
(See document for exact affiliation information.)
AES Convention: 89
Paper Number:2960
Publication Date:
1990-09-06
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Session subject:
Signal Processing
Permalink: https://aes2.org/publications/elibrary-page/?id=5733
(900KB)
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Hiorns, R. E.; Goldberg, J. M.; Sandler, Mark B.; 1990; Realizing an All Digital Power Amplifier [PDF]; King`s College, University of London, London , England; Paper 2960; Available from: https://aes2.org/publications/elibrary-page/?id=5733
Hiorns, R. E.; Goldberg, J. M.; Sandler, Mark B.; Realizing an All Digital Power Amplifier [PDF]; King`s College, University of London, London , England; Paper 2960; 1990 Available: https://aes2.org/publications/elibrary-page/?id=5733