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A single-stage symmetrical-output-voltage push-pull boost converter with a notch filter for input-current-shaping

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6 Author(s)
Coelho, F.A.B. ; Dept. of Electr. Eng., Fed. Univ. of Uberlandia, Brazil ; de Oliveira, J.C. ; Farias, V.J. ; Coelho, E.A.A.
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The push-pull boost topology when properly driven becomes a suitable approach for power factor correction in a single power stage scheme. In addition, input current ripple can be attenuated using an improved notch filter, tuned at switching frequency. In order to obtain high power quality and symmetrical output voltage for dc-ac applications, a single-stage push-pull boost converter with notch filter is proposed. This scheme provides isolation, high bandwidth control and low complexity, reaching therefore high efficiency, low component count and low cost.

Published in:

Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE

Date of Conference:

19-23 March 2006