发明名称 |
Duplicate feedback network in class D amplifiers |
摘要 |
A circuit and a method are provided for suppressing the pop and click noise during the power on and power off of Class D amplifiers. The technique also suppresses pops and clicks when the Class D amplifier enters or exits standby mode. A duplicate feedback network is used to establish the stable operating points, including offsets in the Class D circuit without turning on the outputs. The technique works by gradually propagating or dissipating the offset through the signal path of a Class D amplifier by swapping the differential outputs using switches to suppress pops and clicks when starting up and shutting down the amplifier.
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申请公布号 |
US2011248781(A1) |
申请公布日期 |
2011.10.13 |
申请号 |
US20100799601 |
申请日期 |
2010.04.28 |
申请人 |
DIALOG SEMICONDUCTOR GMBH |
发明人 |
GRIBBEN ANTHONY;TEPLECHUK MYKHAYLO |
分类号 |
H03F3/217 |
主分类号 |
H03F3/217 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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