发明名称 |
Method and apparatus for fault detection scheme for cold cathode fluorescent lamp (CCFL) integrated circuits |
摘要 |
A fault detection circuit and a short-circuit detection circuit for a Cold Cathode Fluorescent Lamp (CCFL) driver integrated circuit having a power bridge and a CCFL load are disclosed that includes a reference circuit operable to generate a reference current in response to an external component, a replica component having a dimension substantially less than the components of the power bridge, a multiplexer circuit, and a comparator circuit. The replica component and the multiplexer circuit pass the reference current and the replica current to the comparator circuit respectively.
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申请公布号 |
US7894174(B2) |
申请公布日期 |
2011.02.22 |
申请号 |
US20080049832 |
申请日期 |
2008.03.17 |
申请人 |
MONOLITHIC POWER SYSTEMS, INC. |
发明人 |
MOYER JAMES C.;UEUNTEN PAUL |
分类号 |
H02H3/08 |
主分类号 |
H02H3/08 |
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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