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Synchronous rectification switching regulator, control circuit for synchronous rectification switching regulator, and operation control method for synchronous rectification switching regulator
Synchronous rectification switching regulator, control circuit for synchronous rectification switching regulator, and operation control method for synchronous rectification switching regulator
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机译:同步整流开关调节器,同步整流开关调节器的控制电路以及同步整流开关调节器的操作控制方法
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摘要
A synchronous-rectification-type switching regulator is disclosed that includes a first switching element; an inductor charged with a voltage input to an input terminal of the switching regulator by the switching of the first switching element; a second switching element for synchronous rectification performing switching so as to discharge the inductor; a control circuit part controlling the switching of the first switching element so that an output voltage from an output terminal of the switching regulator is a predetermined constant voltage, and to cause the second switching element to perform the switching inversely to the first switching element; and a reverse current prevention circuit part interrupting a current that flows into the second switching element by cutting off the connection of the second switching element so as to prevent generation of a reverse current that flows in the direction of the second switching element from the output terminal.
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