Single-Stage Power Factor Correction Switched Power Supply

Postiglione, Cicero S.; Perín, Adriano; Nascimento, Claudinor Bitencourt

doi:10.1109/iecon.2006.347776

Cited by 7 publications

(9 citation statements)

References 7 publications

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“…As in [4], the presented converter is suitable for low power applications, under 600 W. Experimental results for a 200 W -110 kHz prototype presented close to unity power factor, high efficiency, high power density and a small number of components, comparing to two stage approach. The obtained efficiency trend curve has shown that the presented converter is more suitable for applications with load variations from 50 % to 100 % of the rated power when powered by a 220 V utility line.…”

Section: Resultsmentioning

confidence: 54%

“…In [4] a duty cycle of 0.5 was preferred to ensure symmetry of the inductors (L in ) currents and capacitors (C f ) voltages. Therefore, it was necessary to vary the switching frequency to regulate the output voltage.…”

Section: Proposed Convertermentioning

confidence: 99%

“…The methodology is based on the works presented in [4], [7] and [9]. The values of the charge-pump inductors and capacitors are obtained with (1) and (2), respectively.…”

Section: Design Equationsmentioning

confidence: 99%

“…The main advantages of the proposed converter are close to unity power factor and high efficiency, both for wide-load range, with low cost and high density power. The converter topology was proposed in [4] and it is based on the charge-pump voltage-source technique, which is usually used for electronic ballasts. It was first presented with variable frequency control, which resulted in high efficiency (above 80%) and 0.99 PF for a load variation from 100% to 50% and with no elevation of the dc bus voltage.…”

Section: Introductionmentioning

confidence: 99%

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A single-stage power factor correction switched mode power supply

Postiglione

Perín

Nascimento

2007

2007 European Conference on Power Electronics and Applications

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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) for a reasonable load variation range, achieving higher efficiency at higher load conditions. To overcome the excessive elevation of the Dc-link voltage in lower load situations, a common problem of single-stage PFC solutions, frequency variation and PWM control are used simultaneously.

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Section: Resultsmentioning

confidence: 54%

Section: Proposed Convertermentioning

confidence: 99%

“…The methodology is based on the works presented in [4], [7] and [9]. The values of the charge-pump inductors and capacitors are obtained with (1) and (2), respectively.…”

Section: Design Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A single-stage power factor correction switched mode power supply

Postiglione

Perín

Nascimento

2007

2007 European Conference on Power Electronics and Applications

Self Cite

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“…The converters presented in Figure 1 (a) and (b) have been proposed in this work. The SHB was proposed in [12], and the only difference with the AHB is the combination of the SHB capacitors into one capacitor with double capacitance, which is more attractive for practical implementation.…”

Section: Proposed Convertermentioning

confidence: 99%

Ac–dc Serial-interleaved Boost Converter Applied In A Single-stage Pfc

Postiglione¹,

Fuerback²,

Nascimento³

et al. 2013

Eletrônica de Potência

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This paper presents single-stage power factor corrected (PFC) AC-DC converters based on a modified serial-interleaved boost converter. The topologies are a composition of a modified interleaved boost converter with a DC-DC converter. The interleaving allows each boost converter to operate in discontinuous conduction mode (DCM) while still having continuous conduction mode (CCM) input current. High power factor and reduced current ripple are obtained, meeting IEC 61000-3-2 regulations for wide load range. The converters also operate with zero voltage switching (ZVS) resulting in high efficiency. The steady-state analysis of the converter is performed along with the description of the converter operation stages. Finally, a simplified design procedure is proposed, from where a prototype is designed and built. Finally experimental results from a laboratory prototype are presented.

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