Noise Suppression in a Class-D Amplifier Using a Three-Level Converter

Abstract

An architecture that reduces the harmonics of the output signal of a class-D amplifier using a three-level converter has been proposed. The structure consists of a sigma-delta modulator which converts a 15-bit input signal into a 2-bit signal at the clock frequency of 2.822 MHz. This signal drives a three-level diode clamped output power stage. The proposed… (More)

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