Analysis and design of power efficient class D amplifier output stages

• Main Authors: Chang, Joseph Sylvester, Tan, Meng Tong, Cheng, Zhihong, Tong, Yit Chow
• Other Authors: School of Electrical and Electronic Engineering
• Format: Article
• Language: English
• Published: 2009
• Subjects: DRNTU::Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/91597; http://hdl.handle.net/10220/4661
• Institution: Nanyang Technological University

A Class D amplifier comprises a pulse width modulator and an output stage. In this paper, we analyze the power dissipation mechanisms and derive the overall power efficiency of the output stage realized using the finger and waffle layouts.We compare the relative merits of these layout...