Journal Forum

Synthetic Reverberator - January 1960
3 comments

Sound Board: High-Resolution Audio - October 2015
4 comments

Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
2 comments

Access Journal Forum

AES E-Library

Chaotic Modulation In PWM Digital Amplifier

Document Thumbnail

Performance of a pure digital audio amplifier using pulse width modulation (PWM) highly depends on suppression of high frequency, inaudible, components in its spectrum. Noise-like phase modulation of PWM carrier signal allows reducing of nonlinear effects in demodulation filter, and can be of advantage for EMC reasons. In this paper we propose a method of digital PWM amplifier implementation where a digital chaotic oscillator is used for carrier spreading. Modulation principle, interval modulator schematic, and chaotic oscillator structure as well as experimental results are presented.

Author:
Affiliation:
AES Conference:
Paper Number:
Publication Date:
Subject:
Permalink: http://www.aes.org/e-lib/browse.cfm?elib=13858

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 $33 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