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Class-D audio amplifiers in mobile applications | IEEE Conference Publication | IEEE Xplore

Class-D audio amplifiers in mobile applications


Abstract:

A comparative system-level overview is given of alternative class-D amplifier architectures. The theory behind pulse-width modulation and different modulation schemes is ...Show More

Abstract:

A comparative system-level overview is given of alternative class-D amplifier architectures. The theory behind pulse-width modulation and different modulation schemes is discussed. Topological alternatives such as open-loop versus feedback, fixed-carrier versus self-oscillating are analyzed and compared in terms of relevant characteristics such as distortion, power supply rejection, efficiency and electro-magnetic interference. The combination of D/A conversion and class-D amplifiers is discussed.
Date of Conference: 24-27 May 2009
Date Added to IEEE Xplore: 26 June 2009
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Conference Location: Taipei, Taiwan

References

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