Digital class D amplifier with negative feedback

Class D audio power amplifiers have become more prevalent in consumer electronics products because of their high power efficiency and low power dissipation. However, some of the drawbacks of Class D amplifiers include circuit complexity, high Total Harmonic Distortion (THD), high switching noise etc...

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Bibliographic Details
Main Author: Sun, Song.
Other Authors: Tan Meng Tong
Format: Final Year Project
Language:English
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/10356/16756
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Institution: Nanyang Technological University
Language: English
Description
Summary:Class D audio power amplifiers have become more prevalent in consumer electronics products because of their high power efficiency and low power dissipation. However, some of the drawbacks of Class D amplifiers include circuit complexity, high Total Harmonic Distortion (THD), high switching noise etc. A Class D amplifier typically consists of three blocks: a modulation circuit, a digital output stage and a low pass filter. In this project, I will analyze the various feedback topologies for Class D power amplifiers and design a Class D amplifier with low THD. This project is suitable for student with an interest in Mixed-Signal IC design.