A single chip 1W CMOS audio power amplifier with pseudo buffer analog and class D switching mixed mode for mobile application

被引：2
|
作者：
Ryoo, JY [1 ]
Cho, GH [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn & Comp Sci, Circuit & Syst Applicat Lab, Taejon 305701, South Korea
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2005年 / E88C卷 / 09期
关键词：
analog; switching; audio power amplifier; reverse recovery current; on-chip;
D O I：
10.1093/ietele/e88-c.9.1886
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 single chip analog and class D switching mixed mode audio power amplifier using 0.35 mu m CMOS process is presented in this paper. It has on-chip power MOSFET's and adopts a novel reverse recovery current free gate control that can reduce EMI noise and current stress of the power MOSFET's. It shows about 0. 1% THD at 1 kHz and up to 87% efficiency at 4 Omega BTL at 3.3 V single power supply.
引用
收藏
页码：1886 / 1892
页数：7
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