Harmonic distortion reduction in multi-level PWM modulators for audio power amplifiers

被引：0

作者：

Antunes, VME ^{[1
]}

Pires, VF ^{[1
]}

Silva, JF ^{[1
]}

机构：

[1] Escola Super Tecnol, Inst Politecn Setubal, P-2910 Setubal, Portugal

来源：

IECON-2002: PROCEEDINGS OF THE 2002 28TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, VOLS 1-4 | 2002年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a new methodology to reduce harmonic distortion in multilevel PWM modulators with uniform sampling. The proposed approach generates pulses with widths longer than a predeterminate value. This ensures the needed time for the calculations and helps to reduce audio distortion introduced by the non-zero rise and fall time of the switches. Therefore the methodology allows smaller harmonic distortions than the inherent of uniform sampled PWM signals. Simulation results are presented.

引用

页码：852 / 857

页数：6

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