DC-DC CONVERTER
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United States of America Patent
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Feb 7, 2017
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Feb 12, 2016
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Abstract
To provide a synchronous rectification type DC-DC converter equipped with a protection circuit operated stably. There is provided a DC-DC converter equipped with a detection circuit which detects that electrical energy accumulated in an inductor is lost, or a timer circuit which counts a prescribed time after the protection circuit detects an abnormality. When the protection circuit detects an abnormal state, an output control circuit brings a high-side switching element into an off state and brings a low-side switching element into an on state. After the electrical energy accumulated in the inductor is lost, the output control circuit turns off the low-side switching element according to an output signal of the detection circuit or the timer circuit.
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