Actively Clamped Two-Switch Flyback Converter with High Efficiency

Min-Kwon Yang; Woo-Young Choi

Actively Clamped Two-Switch Flyback Converter with High Efficiency

Min-Kwon Yang

Woo-Young Choi

Vol. 15, No. 5, pp. 1200-1206, Sep. 2015

10.6113/JPE.2015.15.5.1200

Active-clamp

Two-switch flyback converter

Zero-current switching

Zero-voltage switching

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Abstract

This paper proposes an actively clamped two-switch flyback converter. Compared to the conventional two-switch flyback converter, the proposed two-switch flyback converter operates with a wide duty cycle range. By using an active-clamp circuit, the proposed converter achieves zero-voltage switching for all of the power switches. Zero-current switching of an output diode is also achieved. Thus, compared with the conventional converter, the proposed converter realizes a higher efficiency with an extended duty cycle. The performance of the proposed converter is verified by the experimental results with use of a 1.0 kW prototype circuit.

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Cite this article

[IEEE Style]

M. Yang and W. Choi, "Actively Clamped Two-Switch Flyback Converter with High Efficiency," Journal of Power Electronics, vol. 15, no. 5, pp. 1200-1206, 2015. DOI: 10.6113/JPE.2015.15.5.1200.

[ACM Style]

Min-Kwon Yang and Woo-Young Choi. 2015. Actively Clamped Two-Switch Flyback Converter with High Efficiency. Journal of Power Electronics, 15, 5, (2015), 1200-1206. DOI: 10.6113/JPE.2015.15.5.1200.