Low cost implementation of filterless class D audio amplifier with constant switching frequency

A new and simple configuration of filterless class D audio amplifier is proposed in this paper. The proposed filterless class D audio amplifier provides the advantages of both low total system cost and generation of synchronized 3-level pulse-width modulated (PWM) output. Moreover, as a result of hy...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on consumer electronics 2006-11, Vol.52 (4), p.1442-1446
Main Authors: Kim, Hyoung-sik, Jung, Sung-wook, Jung, Hwan-mok, Shin, Jang-kyoo, Choi, Pyung
Format: Article
Language:English
Subjects:
Amplifiers
Circuit simulation
Circuits
Costs
Electronics
Frequency synchronization
Hysteresis
Low cost
Pulse amplifiers
Pulse duration modulation
Pulse generation
Pulse width modulation
Simulation
Space vector pulse width modulation
Switching
Switching frequency
Virtual prototyping
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A new and simple configuration of filterless class D audio amplifier is proposed in this paper. The proposed filterless class D audio amplifier provides the advantages of both low total system cost and generation of synchronized 3-level pulse-width modulated (PWM) output. Moreover, as a result of hysteresis window variation, a close to constant switching frequency of PWM output is obtained. The proposed filterless class D audio amplifier is verified by the PSpice simulation and prototype circuit experiment
ISSN:0098-3063
1558-4127
DOI:10.1109/TCE.2006.273168