AES E-Library

Design Parameters Important for Optimization of Very High-Fidelity PWM (Class D) Audio Amplifiers

Class D switching amplifiers can, if optimally designed, achieve performance results comparable, both electrically and acoustically, to the very best class A units. Design parameters and steps needed to achieve these results are considered in detail. Data are presented showing that at least seven critical design criteria must be met if high performance is to be obtained. Failure to implement any one of these seven will result in a pulse-width-modulated amplifier of moderate to poor performance, and one that is likely to be subject to considerable spreads in production.

Author: Attwood, Brian E.
Affiliation: PWM Systems, Horsham, West Sussex, England
JAES Volume 31 Issue 11 pp. 842-853; November 1983 Import into BibTeX

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes4)   /jrnl7888/1983/7952.pdf

Start a discussion about this paper!