Journal of electromagnetic engineering and science

  • 제15권2호
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  • Pages.89-96
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  • 2015
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  • 2671-7255(pISSN)
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  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
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Common Mode Noise Reduction for an LLC Resonant Converter by Using Passive Noise Cancellation

  • Ryu, Younggon (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Kim, Sungnam (LG Electronics) ;
  • Jeong, Geunseok (LG Electronics) ;
  • Park, Jaesu (LG Electronics) ;
  • Kim, Duil (LG Electronics) ;
  • Park, Jongwook (LG Electronics) ;
  • Kim, Jingook (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology) ;
  • Han, Ki Jin (School of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology)
  • 투고 : 2014.12.08
  • 심사 : 2015.04.06
  • 발행 : 2015.04.30
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초록

This paper describes the application of a passive noise cancellation method to a prototype inductor-inductor-capacitor (LLC) resonant converter by placing a compensation winding in a transformer to reduce common mode noise. The connection method for the compensation winding is investigated. A circuit analysis is implemented for the displacement currents between the primary and secondary windings in the transformer. The analyzed displacement currents are verified by performing a circuit simulation and a proper compensation winding connection that reduces common mode noise is found. The measurement results show that common mode noise is reduced effectively up to 20 dB in the 1 to 7 MHz frequency region for the prototype LLC resonant converter by using the proposed passive noise cancellation method.

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참고문헌

  1. D. Cochrane, D. Y. Chen, and D. Boroyevic, "Passive cancellation of common-mode noise in power electronic circuits," IEEE Transactions on Power Electronics, vol. 18, no. 3, pp. 756-763, 2003. https://doi.org/10.1109/TPEL.2003.810858
  2. K. S. Babu, M. Borage, S. Tiwari, S. Kotaiah, & R. Saxena, "Analysis and experimentation with passive cancellation of common-mode noise in buck converter," in Proceedings of the 9th International Conference on Electromagnetic Interference and Compatibility (INCEMIC), Bangalore, India, 2006, pp. 172-180.
  3. Y. P. Chan, B. M. H. Pong, N. K. Poon, and J. C. P. Liu, "Common-mode noise cancellation in switchingmode power supplies using an equipotential transformer modeling technique," IEEE Transactions on Electromagnetic Compatibility, vol. 54, no. 3, pp. 594-602, 2012. https://doi.org/10.1109/TEMC.2011.2166270
  4. S. De Simone, C. Adragna, and C. Spini, "Design guideline for magnetic integration in LLC resonant converters," in Proceedings of International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM 2008), Ischia, Italy, 2008, pp. 950-957.

피인용 문헌

  1. Design Considerations of Resonant Network and Transformer Magnetics for High Frequency LLC Resonant Converter vol.11, pp.2, 2016, https://doi.org/10.5370/JEET.2016.11.2.383
  2. Efficient Circuit and an EM Model of an Electrostatic Discharge Generator vol.60, pp.4, 2018, https://doi.org/10.1109/TEMC.2017.2787189