Implementation of 480W LLC Resonant Converter

Year 2020, Volume: 3 Issue: 1, 34 - 40, 31.03.2020

Yunus Bulut Mertcan Aşçı Burak Akın

Abstract

This study presents the design of an LLC resonant converter as using the leakage inductance of the transformer instead of the inductance in the resonance tank. With serial resonant characteristics, the power MOSFETs are conducted at zero voltage switching and secondary diodes are commutating under soft switching, so the switching power losses on the semiconductor components are decreased. Using the proposed power stage and feedback control loop design considerations, the LLC resonant converter can achieve high power conversion efficiency and stability enhancement. This study provides the working principle of the resonant LLC converter topology by designing the simulation model.

Keywords

LLC Resonant Converter, Resonant Tank, Soft Switching, Switching Losse, Zero Voltage Switching

References

• [1] B. Lu, W. liu, Y. Liang, F. C. Lee, and J. D. van Wyk, “Optimal design methodology for llc resonant converter,” in Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC ’06., DOI 10.1109/APEC.2006.1620590, pp. 6 pp.–, Mar. 2006.
• [2] C. Chang, C. Cheng, and H. Cheng, “Modeling and design of the llc resonant converter used as a solar-array simulator,” IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 2, DOI 10.1109/JESTPE.2014.2349980, no. 4, pp. 833–841, Dec. 2014.
• [3] C. Zhao, X. Wu, and Z. Qian, “Design and comparison of two front-end dc/dc converters: Llc resonant converter and soft-switched phase-shifted full-bridge converter with primary-side energy storage inductor,” in 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition, DOI 10.1109/APEC.2009.4802796, pp. 1073–1077, Feb. 2009.
• [4] D. Fu, Y. Liu, F. C. Lee, and M. Xu, “A novel driving scheme for synchronous rectifiers in llc resonant converters,” IEEE Transactions on Power Electronics, vol. 24, DOI 10.1109/TPEL.2009.2012500, no. 5, pp. 1321–1329, May. 2009.
• [5] F. C. Lee and A. J. Zhang, “Llc resonant converter for front end dc/dc conversion,” in APEC. Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.02CH37335), vol. 2, DOI 10.1109/APEC.2002.989382, pp. 1108–1112 vol.2, Mar. 2002.
• [6] F. Kurokawa and K. Murata, “A new fast digital p-i-d control llc resonant converter,” in 2011 International Conference on Electrical Machines and Systems, DOI 10.1109/ICEMS.2011.6073520, pp. 1–5, Aug. 2011.
• [7] F. Kurokawa and M. Okamatsu, “Static and dynamic characteristics of dc-dc converter using a digital filter,” in 2007 7th Internatonal Conference on Power Electronics, DOI 10.1109/ICPE.2007.4692389, pp. 261–265, Oct. 2007.
• [8] G. Hsieh, C. Tsai, and S. Hsieh, “Design considerations for llc se- riesresonant converter in tworesonant regions,” in 2007 IEEE Power Electronics Specialists Conference, DOI 10.1109/PESC.2007.4342078, pp. 731–736, Jun. 2007.
• [9] K. Park, B. Lee, G. Moon, and M. Youn, “Analysis on center-tap rectifier voltage oscillation of llc resonant converter,” IEEE Transactions on Power Electronics, vol. 27, DOI 10.1109/TPEL.2012.2186614, no. 6, pp. 2684–2689, Jun. 2012.
• [10] M. Kazimierczuk and D. Czarkowski, Resonant power converters. Wiley, 1995, includes bibliographical references and index.
• [11] P. Xu, Q. Wu, P. L. Wong and F. C. Lee, “A novel integrated current doubler rectifier,” in APEC 2000. Fifteenth Annual IEEE Applied Power Electronics Conference and Exposition (Cat. No.00CH37058), vol. 2, DOI 10.1109/APEC.2000.822586, pp. 735–740 vol.2, Feb. 2000.
• [12] R. Lin and C. Lin, “Design criteria for resonant tank of llc dc-dc resonant converter,” in IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society, DOI 10.1109/IECON.2010.5674988, pp. 427–432, Nov. 2010.
• [13] R. L. Steigerwald, “A comparison of half-bridge resonant converter topologies,” IEEE Transactions on Power Electronics, vol. 3, DOI 10.1109/63.4347, no. 2, pp. 174–182, Apr. 1988.
• [14] R. Lin and W. Ju, “Llc dc/dc resonant converter with pll control scheme,” in APEC 07 - Twenty- Second Annual IEEE Applied Power Electron- ics Conference and Exposition, DOI 10.1109/APEX.2007.357721, pp. 1537–1543, Feb. 2007.
• [15] W. Chen, G. Hua, D. Sable, and F. Lee, “Design of high efficiency, low profile, low voltage converter with integrated magnetics,” in Proceedings of APEC 97 - Applied Power Electronics Conference, vol. 2, DOI 10.1109/APEC.1997.575753, pp. 911–917 vol.2, Feb. 1997.