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Low output voltage AC/DC converter with a new scheme of synchronous rectification that complies with IEC 1000-3-2 regulations

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5 Author(s)
Fernandez, A. ; DIEECS-Tecnologia Electron., Oviedo Univ., Spain ; Sebastian, J. ; Alou, P. ; Cobos, J.A.
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In order to obtain low output voltages with a high efficiency, synchronous rectification is mandatory. When the output voltage is low, it is very difficult to use self-driven synchronous rectification and additional windings are used to properly drive the MOSFETs. Moreover, IEC 1000-3-2 regulations impose low input current harmonic contents for power levels higher than 75 W. A recently proposed synchronous rectification scheme is combined with a modified input current shaper to design a 100 W, 3.3 V AC/DC converter that complies with IEC 1000-3-2 regulations

Published in:

Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE  (Volume:2 )

Date of Conference:

2000

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