DC-DC CONVERTER
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United States of America Patent
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Issued Date -
Jan 1, 2015
app pub date -
Jun 26, 2014
filing date -
Jun 26, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A DC-DC converter that is capable of cutting off a large current flowing in a voltage converter circuit when a short-circuit failure occurs in a switching element of the voltage converter circuit includes a voltage converter circuit having a first switching element, a reverse connection protection second switching element that blocks a large current from flowing in the voltage converter circuit when a negative electrode of a DC power supply is connected to an input terminal, a reverse connection protection third switching element that blocks a large current from flowing in the voltage converter circuit when a short-circuit failure occurs in the first switching element, and a detector that detects the short-circuit failure in the first switching element to turn off the third switching element. The third switching element is connected in series with the second switching element.
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