The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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Capacitive Coupling LLC Wireless Power Transfer Converter Through Glasses of Electric Vehicles

전기자동차의 유리를 통한 커패시티브 커플링 LLC 무선 전력 전송 컨버터

  • You, Young-Soo (Dept. of Electronic Engineering, Daegu University) ;
  • Yi, Kang-Hyun (School of Electronic and Electrical Engineering, Daegu University)
  • Received : 2016.09.13
  • Accepted : 2016.11.05
  • Published : 2016.12.20
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Abstract

This work proposes a capacitive coupling-based wireless battery charging circuit that is built with vehicle glasses for electric vehicles. A capacitive coupling wireless power transfer offers many advantages, such as low metal impact and low energy transfer efficiency changes in accordance with changes in position. However, a large coupling capacitor is needed for high power transfer. Therefore, a new capacitive coupling-based wireless power transfer LLC resonant converter built with the glasses of an electric vehicle is proposed. The proposed converter is composed of coupling capacitors with glasses of an electric vehicle and two transformers for impedance transformation. The proposed LLC converter can transfer large power and obtain high efficiency with zero voltage switching. The validity and features of the proposed circuit is verified by experimental results with a 1.2 kW prototype.

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References

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