A novel approach for link capacitor voltage problem in Single-Stage Power-Factor-Correction SS-PFC) AC/ DC converter

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Conventional single-stage power-factor-correction (SS-PFC) AC/DC converter has a link capacitor voltage problem at high line input and low load condition. In this paper, this problem is analyzed by using voltage conversion ratio of the DC/DC conversion cell. Based on this analysis, a new SS-PFC AC/DC converter with boost PFC cell integrated with voltage-doubler rectified asymmetric half-bridge (VDRAHB) is proposed. The proposed converter features good power factor correction, low current harmonic distortions, tight output regulations and low voltage of link capacitor. An 85 W prototype was implemented to show that it meets the harmonic requirements and standards satisfactorily with nearly unity power factor and high efficiency over universal input.
Publisher
IEEE
Issue Date
2008-06-15
Language
ENG
Citation

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE, pp.2928 - 2933

ISSN
0275-9306
URI
http://hdl.handle.net/10203/163016
Appears in Collection
EE-Conference Papers(학술회의논문)
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