2007 European Conference on Power Electronics and Applications 2007
DOI: 10.1109/epe.2007.4417764
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A single-stage power factor correction switched mode power supply

Abstract: This paper presents a single-stage power factor corrected ac-dc converter based on a half-bridge topology. The proposed converter make use of the charge-pump and interleaving techniques resulting in near unity power factor and ripple free input current, meeting the IEC 61000-3-2 regulations for wide-load ranges. It is also a cost effective and competitive solution for 100 -600 W applications where a two stage approach is costly and passive filters are not recommended. It works with zero voltage switching (ZVS)… Show more

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Cited by 3 publications
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“…Substituting (27) and (28) in (29) as well as the approximations for the voltage across the capacitors C f1 and C f2 given by (19) and (20), results in (30).…”
Section: ) Input Currentmentioning
confidence: 99%
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“…Substituting (27) and (28) in (29) as well as the approximations for the voltage across the capacitors C f1 and C f2 given by (19) and (20), results in (30).…”
Section: ) Input Currentmentioning
confidence: 99%
“…The third alternative consists of mixing variable switching frequency with variable duty-cycle. The idea is to use variable switching frequency to maintain the DC-link voltage under a certain value, when the output power is reduced [20], while the duty-cycle is responsible for regulating the output voltage with the desired dynamic. The use of both the techniques is possible owing to the different dynamic responses of the PFC and the DC-DC stages.…”
Section: Controlmentioning
confidence: 99%
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