Journal of electromagnetic engineering and science

  • 제16권4호
  • /
  • Pages.210-213
  • /
  • 2016
  • /
  • 2671-7255(pISSN)
  • /
  • 2671-7263(eISSN)
한국전자파학회 (The Korean Institute of Electromagnetic Engineering and Science)
권호 표지
DOI QR코드

DOI QR Code

Design of a Rechargeable Battery Wireless Charging System

  • Kim, Dae-Hyun (Department of Environmental Planning, Seoul National University) ;
  • Yeo, Tae-Dong (Electrical Engineering, Korea Advanced Institution of Science and Technology (KAIST))
  • 투고 : 2016.08.22
  • 심사 : 2016.09.30
  • 발행 : 2016.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents a wireless power charging system for rechargeable batteries. Recently, misalignment between transmitting coil and receiving coils has been a significant factor to wireless power charging systems, which are prone to lateral and angular misalignment. Unfortunately, the batteries can be easily rolled because of the shape, and coils are often misaligned while charging devices, in practical situations. This paper presents the wireless power battery charging system. In order to solve the angular misalignment, two perpendicular coil having structure of 'plus (+)' shape was proposed. To validate the results, the proposed wireless power charging system was implemented at 6.78 MHz using loosely coupled resonant coils, and the system was verified as being robust to misalignment.

키워드

참고문헌

  1. K. Fotopoulou and B. W. Flynn, "Wireless power transfer in loosely coupled links: coil misalignment model," IEEE Transactions on Magnetics, vol. 47, no. 2, pp. 416-430, 2011. https://doi.org/10.1109/TMAG.2010.2093534
  2. M. Q. Nguyen, Z. Hughes, P. Woods, Y. S. Seo, S. Rao, and J. C. Chiao, "Field distribution models of spiral coil for misalignment analysis in wireless power transfer systems," IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 4, pp. 920-930, 2014. https://doi.org/10.1109/TMTT.2014.2302738
  3. W. H. Ko, S. P. Liang, and C. D. Fung, "Design of radiofrequency powered coils for implant instruments," Medical and Biological Engineering and Computing, vol. 15, no. 6, pp. 634-640, 1977. https://doi.org/10.1007/BF02457921
  4. S. I. Babic, F. Sirois, and C. Akyel, "Validity check of mutual inductance formulas for circular filaments with lateral and angular misalignments," Progress in Electromagnetics Research M, vol. 8 pp. 15-26, 2009. https://doi.org/10.2528/PIERM09060105
  5. J. J. Kim and J. Kim, "Modeling method of coil module for wireless power transfer system by two-port S-parameter measurement in frequency domain," in Proceedings of IEEE Wireless Power Transfer Conference (WPTC), Jeju, Korea, 2014, pp. 251-254.