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Association of a high power factor power supply using an interleaved boost-flyback converter and a soft-switching full bridge topology

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8 Author(s)
C. A. Gallo ; Faculdade de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil ; A. S. Morais ; F. L. Tofoli ; L. C. de Freitas
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This work presents the operation and design of a high power factor high frequency switching power supply with a power of 2 kW. A good power factor is obtained using as a pre-regulator circuit an AC-DC interleaved boost-flyback converter associated with a non-dissipative snubber operating with high power factor, switching in 100 kHz and without commutation losses. The same non-dissipative snubber associated with the full bridge, switching in 100 kHz converter is used as the DC-DC converter.

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Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE  (Volume:2 )

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