AES Store

Journal Forum

Reflecting on Reflections - June 2014
1 comment

Quiet Thoughts on a Deafening Problem - May 2014
1 comment

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
5 comments

Access Journal Forum

AES E-Library

Digital Power Amplification Using Sigma-Delta Modulation and Bit Flipping

A data conversion technique suitable for digital power amplifiers (DPAs) is described, based on a modified sigma-delta modulator. The pulse-repetition frequency (PRF) in the bit stream is reduced in order to increase the efficiency in the power output switching stage. The system offers PRFs comparable to pulse-width-modulation (PWM)-based DPAs, but with higher linearity and more than a thirty-fold reduction in bit-clock frequency.

Authors:
Affiliation:
JAES Volume 45 Issue 6 pp. 476-487; June 1997
Publication Date:

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:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society