A high efficiency 0.5W BTL class-D audio amplifier with RWDM technique

被引：4

作者：

Li, SC ^{[1
]}

Lin, VCC ^{[1
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Adv Technol & Integrated Syst Lab, Yunlin, Taiwan

来源：

ASP-DAC 2004: PROCEEDINGS OF THE ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE | 2004年

关键词：

D O I：

10.1109/ASPDAC.2004.1337586

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

A novel class-D amplifier comprises a Rectangular Wave Delta Modulator (RWDM), bridged tied load (BTL) output gate-driver and low-pass filter. The rectangular wave delta modulator has a multiple inputs floating-gate hysteresis comparator and a feedback integrator formed by the L-R low-pass filter. This integrated amplifier has a flat frequency response with +/-03 dB up to 20 kHz, deliver up to 0.5 Watts with 97% power efficiency, and a distortion of less than 1% over power and frequency range.

引用

页码：307 / 309

页数：3