发明名称 |
High efficiency switch mode amplifier with reduced electromagnetic interference |
摘要 |
<p>Disclosed is a high efficiency amplifier operable to substantially reduce electromagnetic interference (EMI). The high efficiency amplifier comprises an output stage to provide a high powered signal to a load. The high efficiency amplifier further comprises an overlap protection circuit to produce a timing non-overlap in a control signal for the output stage, and an edge control circuit to reduce a transient portion of the high powered signal to substantially reduce the EMI. The overlap protection circuit and the edge control circuit may be implemented with resistive source degeneration. Also disclosed is a related method. In one embodiment, the high efficiency amplifier and the related method may be incorporated into a cellular telephone or a mobile audio device.</p> |
申请公布号 |
EP2405572(A1) |
申请公布日期 |
2012.01.11 |
申请号 |
EP20110005354 |
申请日期 |
2011.06.30 |
申请人 |
BROADCOM CORPORATION |
发明人 |
CHEN, JIANLONG;JIANG, XICHENG |
分类号 |
H03F3/217;H02M1/38;H03K17/16 |
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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