Power supply apparatus
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United States of America Patent
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Jun 27, 2017
Grant Date -
Sep 18, 2014
app pub date -
Mar 14, 2014
filing date -
Mar 14, 2013
priority date (Note) -
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Abstract
A power supply apparatus including a power conversion circuit, a single transformer, a conjugate energy-storing inductor and a first and a second rectifying and filtering circuit is provided. The single transformer has a primary winding, a first secondary winding and a second secondary winding. The primary winding is coupled to the power conversion circuit and the first and second secondary windings respectively induce a corresponding voltage based on a voltage of the primary winding. The conjugate energy-storing inductor has a first and a second conjugate coil isolated from each other. The first and second rectifying and filtering circuits respectively charges/discharges in response to the voltage induced by the first and second rectifying and filtering circuits, and thereby respectively provides a first and a second output voltage via the output terminals of the first and second rectifying and filtering circuits.
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