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PWM-PFC Step-Up Converter For Novel Loss-Less Snubber  

Kwak Dong-Kurl (Dept. of Electrical and Electronic Engineering Hanzhong University)
Lee Bong-Seob (Dept. of Computer and control Engineering, Samcheok University)
Jung Do-Young (Dept. of Computer and control Engineering, Samcheok University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.43, no.1, 2006 , pp. 45-52 More about this Journal
Abstract
In this paper, authors propose a step-up converter of pulse width modulation (PWM) and power factor correction (PFC) by using a novel loss-less snubber. The proposed converter for a discontinuous conduction mode (DCM) eliminates the complicated circuit control requirement and reduces the size of components. The input current waveform in the proposed converter is got to be a sinusoidal form of discontinuous pulse in proportion to magnitude of ac input voltage under the constant duty cycle switching. Thereupon, the input power factor is nearly unity and the control method is simple. In the general DCM converters, the switching devices are fumed-on with the zero current switching (ZCS), and the switching devices must be switched-off at a maximum reactor current. To achieve a soft switching (ZCS and ZVS) of the switching turn-off, the proposed converter is constructed by using a new loss-less snubber which is operated with a partial resonant circuit. The result is that the switching loss is very low and the efficiency of converter is high. Some simulative results on computer and experimental results are included to confirm the validity of the analytical results.
Keywords
Loss-less snubber; PFC; Soft switching; DCM; Step-up converter;
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1 W. Guo, and P. K. Jain, 'A Low Frequency AC to High Frequency AC Inverter with Build-In Power Factor Correction and Soft-Switching', IEEE Trans. on PE, Vol. 19, No. 2, pp. 430-442, 2004   DOI   ScienceOn
2 I. Barbi, R. Gules, R. Redl, and N. O. Sokal, 'DC-DC Converter: 4 Switch Vpk=Vin/2, Capacitive Turn-Off Snubbing ZV Turn-On', IEEE Trans. on PE, Vol. 19, No. 4, pp. 918-927, 2004   DOI   ScienceOn
3 X. Ruan, Z. Chen, and W. Chen, 'Zero-Voltage-Switching PWM Hybrid Full-Bridge Three-Level Converter', IEEE Trans. on PE, Vol. 20, No. 2, pp. 395-404, 2005   DOI   ScienceOn
4 M. S. Dawande, and G. K.Dubey, 'Programmable Input Power Factor Correction Method for Switch-Mode Rectifiers', IEEE Trans. on PE, Vol. 11, No. 4, pp. 585-591, 1996   DOI   ScienceOn
5 Q. Zhao, M. Xu, F. C. Lee, and J. Qian, 'Single-Switch Parallel Power Factor Correction AC-DC Converters with Interent Load Current Feedback', IEEE Trans. on PE, Vol. 19, No. 4, pp. 928-936, 2004   DOI   ScienceOn
6 D. Sadarnac, W. Abida, and C. Karimi, 'The Double Discontinuous Mode Operation of a Converter: A method for soft switching', IEEE Trans. on PE, Vol. 19, No. 2, pp. 453-460, 2004   DOI   ScienceOn
7 D. K. Kwak, K. Y. Suh, S. K. Kwon, and H. W. Lee, 'A High Efficiency DC-DC Boost Converter by Partial Resonant Switching Mode', Trans. KIEE. Vol. 45, No. 9, pp. 1272-1278, 1996