The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지
DOI QR코드

DOI QR Code

LLC Resonant Converter using Proposed Planar Transformer

제안된 평면변압기를 이용한 LLC 공진컨버터

  • Received : 2011.10.11
  • Accepted : 2011.12.22
  • Published : 2012.04.20
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, a new planar transformer with a novel core configuration that can regulate the leakage inductance is proposed and described in detail. In order to design the slim size power system for flat panel TV, Two planar transformers applied to LLC resonant converter are connected in series at primary and in parallel by the center-tap winding at secondary. In this paper, a 300W low profile LLC resonant converter was built and tested to verify the proposed planar transformer.

Keywords

References

  1. W.Chen, G. Hua, D. Sable and F.C. Lee, "Design of high efficiency, low profile, low voltage converter with intergrated magnetics", IEEE-APEC'97, pp. 911-917, 1997.
  2. Ionel Jitaru, "High Power Planar Transformer", Rompower Inc., Patent No : US6,211,767 B1, 2001. 4. 3
  3. Eun Soo Kim,, Bong Gun Chung, "Planar trnsformer", Jeonju University, Patent No. : 10-1054902, 2011. 8. 1
  4. S.I Kang, J.H Kim , E.S Kim, J.H Park, D.Y Huh, and Y.C Jung, "LLC Series Resonant Converter with two Transformers" Transactions of KIPE, Vol.17 No.1, pp. 431-439, December 2009.
  5. B. Yang, F. C. Lee, A. J. Zhang and G. Huang, "LLC resonant converter for front end DC/DC conversion", IEEE APEC '02, Vol. 2, pp. 1108-1112, 2002.
  6. Dianbo Fu, Fred C. Lee and Shuo Wang, "Investigation on Transformer Design of High Frequency High Efficiency DC-DC Converters", in proc. IEEE APEC '10, pp. 940-947, 2010.
  7. Y. Liu, A.Pratt, P. Kumar, M. Xu, Fred C. Lee, "390VV Input VRM for High Efficiency Server Power Architecture", IEEE APEC '07, pp. 1619-1624, 2007.
  8. Jee-Hoon Jung, Jong-Moon Choi, Joong-gi Kwon, "Desing Methodology for Transformers Including Integrated and Center-tapped Structores for LLC Resonant Converter", Journal of Power Electronics, Vol. 9 No. 2, pp. 215-223, 2009. 3.