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Integrated Class-D Amplifier

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In this paper an integrated stereo single-ended class D amplifier is presented. The amplifier is capable of delivering 2x100W in two 4? loads at a supply voltage of 60V. The amplifier has been realized in an SOI-based BCD technology. A second order feedback loop is used to supress supply ripple and on-idealities in the output stage. In order to be suited for mass production practical issues such as robustness and EMC have been addressed.

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AES - Audio Engineering Society