Synchronous rectifier circuit
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United States of America Patent
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Jun 10, 2014
Grant Date -
Jun 30, 2011
app pub date -
Dec 29, 2009
filing date -
Dec 29, 2009
priority date (Note) -
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Abstract
A synchronous rectifier circuit rectifies an AC input voltage to produce a DC output voltage. The synchronous rectifier circuit comprises MOSFET (metal-oxide-semiconductor field-effect transistor) switches coupled within secondary transformer windings resulting in a shortened AC current path compared to conventional synchronous rectifier circuits. The shortened current path mitigates skin and proximity effects, substantially improving the power efficiency of the synchronous rectifier circuit. A rectifier assembly integrates one or more synchronous rectifier circuits within a magnetic core.
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