A 500 Watts Single Stage Single Switch Soft Switched CCM PFC Flyback Converter with BCM Control

  • Authors

    • Rayudu Mannam
    • Srinivasa Rao Gorantla
    • Nagesh Vangala
  • Single stage isolated AC to DC converters find prominence due to simplicity and efficiency in addition to economics. Boundary control Mode BCM Flyback converters are widely used for such applications up to power levels of 200 watts. For higher power levels, average current control mode PFCs are used and two stage conversion is incorporated. In this paper,  a novel technique for building  a single stage PFC with a Continuous Conduction Mode CCM Flyback AC DC converter is proposed  for 500 watts power. A practicalsingle stage converter is built with power factor correction and input output isolation. The unique feature of the new configuration lies in having only one primary MOSFET switch and adapting BCM control in a CCM Flyback configuration and achieving ZVS and ZCS while in CCM operation. Proposed configuration is best suited for battery charger applications. Also, the absence of high voltage bulk capacitor at the mains input adds lot of advantages in terms of eliminating inrush current and saving PCB area. A working model of 130 V Dc output and 4.0A  is built and the test data are presented  depicting the complete soft switching of all power devices and exhibiting the efficiencies in excess of 95%.

  • References

    1. [1] Global Energy Transformation, A Road Map to 2050, IRENA 2018

      [2] IEC,2010, Harmonic Current Emissions Guidelines to the standard EN 61000-3-2

      [3] Miao-miao Cheng , Zhiguo Liu, YueyueBao, and Zhongjie Zhang , 2016, Continuous Conduction Mode Soft-Switching Boost Converter and its Application in Power Factor Correction Journal of Power Electronics, Vol. 16, No. 5, pp. 1689-1697

      [4] ON Semiconductor, 2014Power Factor Correction (PFC) Handbook, Choosing the Right Power Factor Controller Solution, Rev. 5

      [5] Yeong-Chang Yan, et al, 2009 A Single-stage Soft-Switching Flyback Converter for Power-Factor-Correction Applications, Vehicle Power and Propulsion Conference,. VPPC '09, IEEE Dearborn, MI, USA 1412 -1415.

      [6] Abraham Pressman, Keith Billings,Taylor Morey, Switching Power supply Design, Third edition Mc Graw Hill, 2009

      [7] Nagesh Vangala, Rayudu Mannam, Transformer Design to Achieve Soft Switching In Low Power Flyback Converters, IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES 2016) held at Delhi Technological University, New Delhi, India, during 4th to 6th July 2016

      [8] Chushan Li, Yu Zhang, and David Xu, Soft switching Single stage Isolated AC DC converter for single phase high power Pfc applications. 9th International Conference on Power Electronics-ECCE Asia June 1 - 5, 2015, 63 Convention Center, Seoul, Korea

      [9] AND8147/D, ON semiconductor Application note, An Innovative Approach to Achieving Single Stage PFC and Step-Down Conversion for Distributive Systems, 2011

      [10] Yeong-Chang Yan, Shih-Jen Cheng,et al , Shann-Chyi Mou., A single stage Soft switching Flyback Converter for Power factor correction Applications. 2009 IEEE Vehicle Power and Propulsion Conference, 7-10 Sept. 2009

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  • How to Cite

    Mannam, R., Gorantla, S. R., & Vangala, N. (2018). A 500 Watts Single Stage Single Switch Soft Switched CCM PFC Flyback Converter with BCM Control. International Journal of Engineering & Technology, 7(4.24), 124-128. https://doi.org/10.14419/ijet.v7i4.24.21871