Circuit and method for managing common mode noise in isolated resonant DC-DC power converters
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United States of America Patent
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Nov 22, 2016
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N/A
app pub date -
Feb 2, 2015
filing date -
Feb 6, 2014
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Abstract
A resonant DC/DC power converter is provided with isolated primary and secondary circuits. The primary circuit includes at least four switches as first and second pairs in a bridge configuration, an isolation transformer having at least one primary and at least one secondary winding, and a resonant tank including a resonant capacitor and a split resonant inductor having two separate windings. In one embodiment, the split resonant inductor windings are substantially identical. Synchronous switching of diagonally opposed switch pairs in the bridge configuration thereby produces a center point voltage of the primary transformer winding is substantially free of stepwise voltage changes.
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