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Class-D / Switching Amplifiers & TDSS Upgrades

Along with the many advantages offered by the relatively recent advent and maturity of Class-D/Switching amplifier technology, a new set of performance-limiting issues have arisen that were never much of a concern with former linear (Class-A, A/B, etc.) amplifier designs. At the root of the matter lies the fact that the technology is based on the principles of Pulse Width Modulation(PWM). Principle of the delta PWM. The output signal (blue) is compared with the limits (green). These limits correspond to the reference signal (red), offset by a given value. Every time the output signal (blue) reaches one of the limits, the...

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