12V Delta-Sigma Class-D Audio Amplifier

  • Hussein Ballan
  • Michel Declercq


Among the various existing medium- and low-power system applications, where a full high-voltage integrated circuit solution can be used, there is a limit beyond which the SVX technique loses its advantages with respect to dedicated technologies. The class-D audio amplifier presented in this chapter is a typical medium power application suited for this purpose. In addition to the power limit considerations, this chapter points Out the flexibility of this approach in combining low-voltage signal processing and high-voltage features. In fact, the low-voltage part of the amplifier consists of a delta-sigma (Δ-Σ) modulator and some protection features,.such as over-temperature and over-current detection cells.


Switching Frequency Total Harmonie Distortion Noise Floor Power Device Input Amplitude 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer Science+Business Media Dordrecht 1999

Authors and Affiliations

  • Hussein Ballan
    • 1
  • Michel Declercq
    • 1
  1. 1.Swiss Federal Institute of TechnologyLausanneSwitzerland

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