An integrated 200-W class-D audio amplifier

被引：108

作者：

Berkhout, M ^{[1
]}

机构：

[1] Philips Semicond, NL-6534 AE Nijmegen, Netherlands

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 2003年 / 38卷 / 07期

关键词：

audio amplifiers; power integrated circuits; pulsewidth modulation; silicon-on-insulator technology;

D O I：

10.1109/JSSC.2003.813238

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 [电气工程]; 0809 [电子科学与技术];

摘要：

An integrated stereo class-D audio power amplifier realized in a silicon-on-insulator (SOI)-based BCD technology is presented. The amplifier is capable of delivering 2 x 100 W in two 442 loads at a supply voltage of 60 V. A second-order feedback loop is used to supress supply ripple and pulse-shape errors in the switching power stage. The limiting factor in the performance of any class-D amplifiers is the quality of the switching power stage. A high-speed low-current levelshifter and a robust deadtime control arrangement are proposed that enable the realization of a robust high-quality switching power stage. Some practical issues with respect to robustness and electromagnetic compatibility are discussed.

引用

页码：1198 / 1206

页数：9