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发明名称
自振荡差分回馈D级放大器之方法及装置METHOD AND APPARATUS FOR SELF-OSCILLATING DIFFERENTIAL FEEDBACK CLASS-D AMPLIFIER
摘要
本发明提出一种用于一输入信号(譬如一声音信号)之一D级放大及脉冲宽度调制(PWM)的简单方法及装置。本发明提出的电路并不需要参考输入信号,譬如三角信号;此等电路之自振荡器件配置及延迟元件的组合以较高频率执行脉冲宽度调制上同时产生较少噪讯。除了其他优点,此等电路提供较短响应时间、较低失真、较好电源连波斥拒、较大负回馈及较简单构造。建议的D级放大器可与扬声器一起使用且可具有单端或差分输入。
申请公布号
TW200607227
申请公布日期
2006.02.16
申请号
TW094114148
申请日期
2005.05.02
申请人
茂力科技股份有限公司
发明人
高岸秀人
分类号
H03F3/217;H03G5/28
主分类号
H03F3/217
代理机构
代理人
蔡清福
主权项
地址
美国
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