A New Single-Stage PFC AC/DC Converter with Low Link-Capacitor Voltage

Byoung-Hee Lee; Chong-Eun Kim; Ki-Bum Park; Gun-Woo Moon

A New Single-Stage PFC AC/DC Converter with Low Link-Capacitor Voltage

Vol. 7, No. 4, pp. 328-335, Oct. 2007

10.6113/JPE.2007.7.4.328

Single-Stage Power-Factor-Correction (PFC)

Voltage-Doubler Rectified Asymmetric Half-Bridge

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Abstract

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.

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Cite this article

[IEEE Style]

B. Lee, C. Kim, K. Park, G. Moon, "A New Single-Stage PFC AC/DC Converter with Low Link-Capacitor Voltage," Journal of Power Electronics, vol. 7, no. 4, pp. 328-335, 2007. DOI: 10.6113/JPE.2007.7.4.328.

[ACM Style]

Byoung-Hee Lee, Chong-Eun Kim, Ki-Bum Park, and Gun-Woo Moon. 2007. A New Single-Stage PFC AC/DC Converter with Low Link-Capacitor Voltage. Journal of Power Electronics, 7, 4, (2007), 328-335. DOI: 10.6113/JPE.2007.7.4.328.