Dual-Output Single-Stage Bridgeless SEPIC with Power Factor Correction


Vol. 15, No. 2, pp. 309-318, Mar. 2015
10.6113/JPE.2015.15.2.309


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 Abstract

This study proposes a dual-output single-stage bridgeless single-ended primary-inductor converter (DOSSBS) that can completelyremove the front-end full-bridge alternating current?direct current rectifier to accomplish power factor correction for universal lineinput. Without the need for bridge diodes, the proposed converter has the advantages of low component count and simple structure,and can thus significantly reduce power loss. DOSSBS has two uncommon output ports to provide different voltage levels to loads,instead of using two separate power factor correctors or multi-stage configurations in a single stage. Therefore, this proposedconverter is cost-effective and compact. A magnetically coupled inductor is introduced in DOSSBS to replace two separate inductorsto decrease volume and cost. Energy stored in the leakage inductance of the coupled inductor can be completely recycled. In eachline cycle, the two active switches in DOSSBS are operated in either high-frequency pulse-width modulation pattern orlow-frequency rectifying mode for switching loss reduction. A prototype for dealing with an 85?265 Vrms universal line is designed,analyzed, and built. Practical measurements demonstrate the feasibility and functionality of the proposed converter.


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Cite this article

[IEEE Style]

C. Shen and S. Yang, "Dual-Output Single-Stage Bridgeless SEPIC with Power Factor Correction," Journal of Power Electronics, vol. 15, no. 2, pp. 309-318, 2015. DOI: 10.6113/JPE.2015.15.2.309.

[ACM Style]

Chih-Lung Shen and Shih-Hsueh Yang. 2015. Dual-Output Single-Stage Bridgeless SEPIC with Power Factor Correction. Journal of Power Electronics, 15, 2, (2015), 309-318. DOI: 10.6113/JPE.2015.15.2.309.