DIGITAL SAMPLING PROCESS FOR AUDIO CLASS-D, PULSE WIDTH MODULATED, POWER-AMPLIFIERS

被引：9

作者：

MELLOR, PH ^{[1
]}

LEIGH, SP ^{[1
]}

CHEETHAM, BMG ^{[1
]}

机构：

[1] UNIV LIVERPOOL,DEPT ELECT ENGN & ELECTR,LIVERPOOL L69 3BX,ENGLAND

来源：

ELECTRONICS LETTERS | 1992年 / 28卷 / 01期

关键词：

SAMPLING; AMPLIFIERS; ANALOG DIGITAL CONVERSION;

D O I：

10.1049/el:19920035

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：

Digital audio class D amplifiers require a digital process to convert the sampled audio signal into a pulse width modulated (PWM) signal. The present methods of generating PWM are either analogue (natural sampling) and are unsuitable for digital systems or use a digital process (uniform sampling) which introduces excessive distortion. An alternative sampling process is described which is suitable for digital implementation yet introduces the low levels of distortion usually associated with natural sampling.

引用

页码：56 / 58

页数：3