SWITCHING AMPLIFIER

申请公布号：JP2006081226(A)

申请号：JP20050351062

申请日期：2005.12.05

申请公布日期：2006.03.23

申请人：

SHARP CORP

发明人：KISHIDA MASAHIRO

分类号：H03F3/217

主分类号：H03F3/217

摘要：PROBLEM TO BE SOLVED: To provide a switching amplifier that can reduce the effect of a switching noise to enhance the audio performance. SOLUTION: The switching amplifier is provided with an analog circuit earth 10 connecting an operational amplifier group in a delta sigma modulation circuit 4 to ground and a digital circuit earth 11 connecting a constant voltage switching circuit 5 to ground. The analog circuit earth 10 and the digital circuit earth 11 are separately connected to ground. COPYRIGHT: (C)2006,JPO&NCIPI

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