High Efficiency with Small Coils Area Ratio of Magnetic Resonant Wireless Power Transfer System

  • Thabat Thabet 
  • John Woods 


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Submitted Aug 29, 2018
Published Oct 15, 2018
10.24018/ejece.2018.2.6.38

Abstract viewed = 238 times

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Wireless power transfer using magnetic resonance requires cutting flux lines generated from the transmitter coil by the receiver coil. This letter shows that an exact one to one coil area ratio or CAR (i.e. primary relative to secondary) is not a pre-condition to obtain high efficiency. It is also shown that high efficiency can be achieved for relatively small CARs by adjustment of the turns ratio. We go on to show that it is possible to achieve a higher energy efficiency than the coil area ratio and the associated flux cut would dictate.

Keywords: Coil area ratio High efficiency Magnetic resonant Mutual inductance Wireless power transfer

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References

  1. A. Mahmood, A. Ismail, Z. Zaman, H. Fakhar, Z. Najam, M. Hasan, and S. Ahmed, "A Comparative Study of Wireless Power Transmission Techniques," Journal of Basic and Applied Scientific Research, vol. 4, no. 1, pp. 321-326, 2014.
     Google Scholar
  2. H.-G. Park, J.-H. Jang, J.-H. Kang, H. D. Tiwari, Y.-K. Moon, and K.-Y. Lee, "Automatic power controlled, load compensated magnetic resonant wireless power transmitter,"? International Journal of Electronics Letters, vol. 2, no. 2, pp. 121-133, 2014.
     Google Scholar
  3. P. Vuori, J. Kari, and J. Muurinen, "Method and apparatus for wireless power transfer," Google Patents, US9859719B2, 2018.
     Google Scholar
  4. C. Balanis, ANTENNA THEORY Analysis and Design, 2nd ed., Canada: Wiley, 1997.
     Google Scholar
  5. T. Thabet, and J. Woods, "An Approach to Calculate the Efficiency for an N-Receiver Wireless Power Transfer System,"? IJACSA, vol. 6, no. 9, pp. 91-98, 2015.
     Google Scholar
  6. T. I. Anowar, S. D. Barman, A. Wasif Reza, and N. Kumar, "High-efficiency resonant coupled wireless power transfer via tunable impedance matching,"? International Journal of Electronics, pp. 1-19, 2017.
     Google Scholar
  7. A. C. M. de Queiroz, "Mutual inductance and inductance calculations by Maxwell's Method,"? Home page of Dr. Antonio Carlos M. de Queiroz, 2005.
     Google Scholar