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A Sigma-Delta Power Amplifier for Digital Input Signals

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A new Class-D amplifier for digital input signals (power D/A converter) is presented. The amplifier is based on sigma-delta modulation and includes a high-efficiency power switching output stage. In combination with digital crossover systems, the new digital amplifier is well suited for high-power active loudspeaker systems.

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Permalink: http://www.aes.org/e-lib/browse.cfm?elib=7331

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