About the demodulation of PWM-signals with applications to audio amplifiers

About the demodulation of PWM-signals with applications to audio amplifiers

In this paper, the reason for the relatively high distortion level of conventional class-D audio amplifiers is discussed. It is pointed out that the classical approach is insufficient for high performance applications. Therefore the importance of the matching between modulation and demodulation is d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Bresch, H., Streitenberger, M., Mathis, W.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Broadband amplifiers
Demodulation
Frequency
Low pass filters
Power amplifiers
Pulse amplifiers
Pulse width modulation
Sampling methods
Signal sampling
Space vector pulse width modulation
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Beschreibung
Zusammenfassung:In this paper, the reason for the relatively high distortion level of conventional class-D audio amplifiers is discussed. It is pointed out that the classical approach is insufficient for high performance applications. Therefore the importance of the matching between modulation and demodulation is demonstrated by simulation.
DOI:10.1109/ISCAS.1998.704255