发明名称 |
Overcurrent protection in amplifier topologies employing DC isolation |
摘要 |
An amplifier having output switch circuitry is described. A sense resistor is operable to transmit an output current associated with the output switch circuitry. Low-voltage circuitry is operable to provide a drive signal to the output switch circuitry. Isolation circuitry is operable to provide DC isolation between the low-voltage circuitry and the output switch circuitry. Current sensing circuitry is directly connected to the sense resistor and is operable to sense the output current in the sense resistor and generate a fault signal in response to an overcurrent condition. The fault signal is characterized by a signal level which is compatible with the low-voltage circuitry without additional DC isolation.
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申请公布号 |
US2005122168(A1) |
申请公布日期 |
2005.06.09 |
申请号 |
US20040990288 |
申请日期 |
2004.11.15 |
申请人 |
TRIPATH TECHNOLOGY, INC. |
发明人 |
MAZDA BABAK |
分类号 |
H03F;H03F3/217;(IPC1-7):H03F3/217 |
主分类号 |
H03F |
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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