Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A Novel Two Phase Interleaved LLC Series Resonant Converter using a Phase of the Resonant Capacitor

  • Yi, Kang-Hyun (School of Electrical Engineering and Computer Science, Division of Electrical Engineering, KAIST) ;
  • Moon, Gun-Woo (School of Electrical Engineering and Computer Science, Division of Electrical Engineering, KAIST)
  • Published : 2008.07.20
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Abstract

An LLC series resonant converter has many unique characteristics and improvements over PWM topologies. However, many output capacitors are needed in parallel to satisfy output voltage ripple and the rated ripple current of the capacitors. This paper deals with a novel two phase interleaved LLC resonant converter using a phase of the resonant capacitor. The proposed converter can satisfy output voltage ripple and a rated ripple current of capacitors with few output capacitors, relatively. The operation and features are considered in detail and a prototype with a 12V-100A output is investigated.

Keywords

References

  1. Bo Yang, and Fred.C.Lee, "LLC Resonant converter for Front End DC/DC Conversion", IEEE APEC, pp.1108-1112, 2002
  2. Hang-Seok Choi, "Design Consideration of Half-Bridge LLC Resonant Converter", Journal of power electronics, Vol. 7, No.1, pp. 13-20, Jan. 2007
  3. Gwang-Taek Lee, Darl-Woo Lee, Tae-Young Ahn, Sung-Cheol Kim, Chan-Gyu Jang, "A study on the LLC resonant Half-bridge converter that use current comparison type synchronous rectifier", Proceeding of KIPE 2005 Fall Annual Conference, pp. 117-120, 2005
  4. Taotao Jin and Keyue Smedley, "Multiphase LLC Series Resonant Converter for Microprocessor Voltage Regulation", in Proc. IEEE 41st IAS Annual Meeting. Conference, pp. 2136-2143, 2006