A Voltage-fed Single-stage PFC Full-bridge Converter with Asymmetric Phase-shifted Control for Battery Chargers

Qinsong Qian; Weifeng Sun; Taizhi Zhang; Shengli Lu

A Voltage-fed Single-stage PFC Full-bridge Converter with Asymmetric Phase-shifted Control for Battery Chargers

Vol. 17, No. 1, pp. 31-40, Jan. 2017

10.6113/JPE.2019.17.1.31

Asymmetric phase-shifted control

Battery charger

Single-stage PFC full-bridge converter

Voltage-fed

Wide output voltage range

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Abstract

A novel voltage-fed single-stage power factor correction (PFC) full-bridge converter based on asymmetric phase-shifted control for battery chargers is proposed in this paper. The attractive feature of the proposed converter is that it can operate in a wide output voltage range without an output low-frequency ripple, which is indispensable in battery charger applications. Meanwhile, the converter can maintain a high power factor and a controllable dc bus voltage over a wide output voltage range. In this paper, the realization of PFC and the operation principle of asymmetric phase-shifted control are given. A small-signal analysis of the proposed single-stage power factor correction (PFC) full-bridge converter is performed. Experimental results obtained from a 1kW experimental prototype are given to validate the feasibility of the proposed converter. The PF is higher than 0.97 over the entire output voltage range with the proposed control strategy.

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Cite this article

[IEEE Style]

Q. Qian, W. Sun, T. Zhang, S. Lu, "A Voltage-fed Single-stage PFC Full-bridge Converter with Asymmetric Phase-shifted Control for Battery Chargers," Journal of Power Electronics, vol. 17, no. 1, pp. 31-40, 2017. DOI: 10.6113/JPE.2019.17.1.31.

[ACM Style]

Qinsong Qian, Weifeng Sun, Taizhi Zhang, and Shengli Lu. 2017. A Voltage-fed Single-stage PFC Full-bridge Converter with Asymmetric Phase-shifted Control for Battery Chargers. Journal of Power Electronics, 17, 1, (2017), 31-40. DOI: 10.6113/JPE.2019.17.1.31.