Current resonance DC-DC converter
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United States of America Patent
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Sep 20, 2016
Grant Date -
Sep 17, 2015
app pub date -
Sep 29, 2014
filing date -
Mar 14, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A current resonance DC-DC converter includes a transformer, a switching circuit connected to a primary winding and having a pair of first and second primary side switches which alternately perform ON and OFF operations, an AC-DC conversion circuit connected to a secondary winding and having a pair of first and second secondary side switches which alternately perform the ON and OFF operations and a control circuit that synchronously turns the switches ON and OFF in consideration of a dead time period. The dead time period is provided immediately before and after an ON period of the first and second primary switches. A lag time period is provided immediately before the dead time period. The control circuit turns the first and second secondary side switches ON at the lag time period and turns the first and second secondary side switches OFF at an expiration of the dead time period.
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