High-fidelity PWM inverter for audio amplification based on real-time DSP

被引：5

作者：

Pascual, C ^{[1
]}

Krein, PT ^{[1
]}

Midya, P ^{[1
]}

Roeckner, B ^{[1
]}

机构：

[1] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

COMPEL 2000: 7TH WORKSHOP ON COMPUTERS IN POWER ELECTRONICS, PROCEEDINGS | 2000年

关键词：

pulse-width modulation; uniform and natural sampling; digital audio amplifier; noise shaping;

D O I：

10.1109/CIPE.2000.904721

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：

A complete digital audio amplifier has been developed, implemented and tested. It makes use of digital signal processing and a switching power stage to provide both high fidelity and high efficiency. It includes innovative signal processing and hardware techniques. It delivers 51 W into an 8-Omega load with an efficiency of 82% and a total harmonic distortion plus noise of 0.022%.

引用

页码：227 / 232

页数：6

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