A new single-stage PFC AC/DC converter with low link-capacitor voltage

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A conventional Single-Stage Power-Factor-Correction (PFC) AC/DC converter has a link capacitor voltage problem under high line input and low load conditions. In this paper, this problem is analyzed by using the voltage conversion ratio of the DC/DC conversion cell. By applying this analysis, a new Single-Stage PFC AC/DC converter with a boost PFC cell integrated with a Voltage-Doubler Rectified Asymmetrical Half-Bridge (VDRAHB) is proposed. The proposed converter features good power factor correction, low current harmonic distortions, tight output regulations and low voltage of the link capacitor. An 85W prototype was implemented to show that it meets harmonic requirements and standards satisfactorily with near unity power factor and high efficiency over universal input.
Publisher
KOREAN INST POWER ELECTRONICS
Issue Date
2007-10
Language
English
Article Type
Article
Citation

JOURNAL OF POWER ELECTRONICS, v.7, pp.328 - 335

ISSN
1598-2092
URI
http://hdl.handle.net/10203/90550
Appears in Collection
GT-Journal Papers(저널논문)EE-Journal Papers(저널논문)
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