| 发明名称 |
Apparatus and method for asymmetric charge pump for an audio amplifier |
| 摘要 |
An audio amplifier with an integrated asymmetric charge pump is provided. The audio amplifier receives VDD and VSS as power supply signals. The integrated charge pump is arranged to provide VSS from VDD, such that VSS is a negative voltage that is lower in magnitude than VDD.
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| 申请公布号 |
US7554408(B2) |
申请公布日期 |
2009.06.30 |
| 申请号 |
US20070751502 |
申请日期 |
2007.05.21 |
| 申请人 |
NATIONAL SEMICONDUCTOR CORPORATION |
发明人 |
CHEN HUAIJIN;CHEN MARCELLUS;BHATT ANSUYA P.;SINGH RAMINDER JIT |
| 分类号 |
H03F3/04 |
主分类号 |
H03F3/04 |
| 代理机构 |
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代理人 |
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| 主权项 |
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