%0 Journal Article
%T A speaker driver for a single phase supply class G & I<br>一种用于单相电源G类和I类音频功放的扬声器驱动电路
%A Feng Yong
%A Yang Shanshan
%A Peng Zhenfei
%A Hong Zhiliang
%A Liu Yang
%A <br>冯勇
%A 杨姗姗
%A 彭振飞
%A 洪志良
%A 刘洋
%J 半导体学报
%D 2011
%I 
%X A speaker driver applied to class G/classⅠwith a single phase power supply is presented.Gain expanding and compressing technology are employed in the signal processing circuit to optimize power dissipation.The circuit is implemented in 0.18μm N-well CMOS.Experimental results show that the speaker driver has a good audio sound quality and power efficiency.Less than 0.006%THD at a low power range and less than 0.4%at a medium power range can be obtained with a 1 kHz sine wave signal.Maximum output power of...
%K class G/class I
%K speaker driver
%K single phase power supply
%K THD<br>单相供电
%K 驱动器
%K 扬声器
%K 最大输出功率
%K 信号处理电路
%K N阱CMOS
%K 功率范围
%K 总谐波失真
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=025C8057C4D37C4BA0041DC7DE7C758F&aid=734DF75479CF991A2C977C36E783D38B&yid=9377ED8094509821&vid=9971A5E270697F23&iid=38B194292C032A66&sid=C19097347208E124&eid=DF92D298D3FF1E6E&journal_id=1674-4926&journal_name=半导体学报&referenced_num=0&reference_num=0