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US07872460B2 Method for detecting output short circuit in switching regulator 有权
检测开关稳压器输出短路的方法

Method for detecting output short circuit in switching regulator
Abstract:
A method and circuit for accurately detecting an output short circuit in a switching regulator. A first transistor and a second transistor are connected in series and driven in a complementary manner. A comparator compares output current, which is generated when the first and second transistors are driven, with a short circuit detection threshold to generate a first short circuit detection signal. A timing controller retrieves the first short circuit detection signal generated by the comparator at a predetermined time to generate a second short circuit detection signal.
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