发明名称 |
BUCK CONVERTER FAULT DETECTION METHOD |
摘要 |
<p>A circuit for detecting faults in at least one converter in a converter system, the at least one converter including a switching stage having high- and low-side switches connected at a switching node and fault circuitry for managing a plurality of fault conditions. The circuit including a gate driver circuit connected to gate terminals of the high- and low-side switches for providing PWM signals to control the switching stage; a comparator circuit for comparing a voltage at the switching node to the input voltage and providing an output signal, the comparator circuit having output, positive and negative terminals; a fourth capacitor connected to the output terminal of the comparator circuit to generate an AC component of the comparator circuit output signal; and a rectifier circuit connected to the fourth capacitor for rectifying the AC component of the comparator circuit and providing a fault-indicating signal to the gate driver. The fault-indicating signal is used to drive the fault circuitry to correct a fault condition selected from the plurality of fault conditions in the converter system.</p> |
申请公布号 |
WO2008021440(A2) |
申请公布日期 |
2008.02.21 |
申请号 |
WO2007US18149 |
申请日期 |
2007.08.15 |
申请人 |
INTERNATIONAL RECTIFIER CORPORATION;WU, WENKAI;SCHUELLEIN, GEORGE |
发明人 |
WU, WENKAI;SCHUELLEIN, GEORGE |
分类号 |
H02H7/10 |
主分类号 |
H02H7/10 |
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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