Digital class D amplifier with negative feedback

• Main Author: Sun, Song.
• Other Authors: Tan Meng Tong
• Format: Final Year Project
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits
• Online Access: http://hdl.handle.net/10356/16756
• Institution: Nanyang Technological University

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.