Journal of electromagnetic engineering and science

  • 제17권2호
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  • Pages.76-85
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  • 2017
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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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Magnetic Resonant Wireless Power Transfer with Rearranged Configurations

  • Kang, Seok Hyon (Graduate School of Nano IT Design Fusion, Seoul National University of Science and Technology) ;
  • Jung, Chang Won (Graduate School of Nano IT Design Fusion, Seoul National University of Science and Technology)
  • 투고 : 2016.11.15
  • 심사 : 2017.03.25
  • 발행 : 2017.04.30
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초록

We investigate the indirect-fed magnetic resonant wireless power transfer (MR-WPT) system for wireless charging for mobile devices by rearranging the loops and coils. Conventional MR-WPT is difficult to apply to consumer electronic products because of the arrangement of the resonators. In addition, there are restrictions for charging using a wireless technology, which depend on the circumstances of the usage scenarios. For practical applications, we analyzed the transfer efficiency of the MR-WPT system with various combinations and positions of resonators. Three rearranged configurations (Out-Out, Out-In, In-In) have been considered and experimentally investigated using hollow pipe loops and wire copper coils. There were four types of loops and two types of coils; each one had a different diameter and thickness. The results of the measurements show that the trends of the transfer efficiencies for the three configurations were similar. A transfer efficiency of 82.5% was achieved at a 35-cm distance between the 60-cm diameter transmitter (Tx) and receiver (Rx) coils.

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참고문헌

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피인용 문헌

  1. A compact module-integrated wireless power transfer system with a square metal plate pp.08952477, 2019, https://doi.org/10.1002/mop.31747