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Capacitive Coupling Wireless Power Transfer Circuit with a Compensated L for High Voltage Gain and Soft Switching

Kang Hyun Yi(1*)

(1) School of Electronic and Electrical Engineering, Daegu Unviersity, Korea, Republic of
(*) Corresponding author


DOI: https://doi.org/10.15866/iree.v13i5.15343

Abstract


A Capacitive coupling wireless power transfer (WPT) circuit with a compensated L is proposed. Two pairs of small area metal electrodes are used to produce two coupling capacitors and a resonant inductor is employed for the capacitive coupling wireless power transfer. By adding one parallel inductor to the series resonant circuit, an output voltage gain greater than 1 can be achieved. In addition, zero voltage switching (ZVS), zero current switching (ZCS), and higher output voltage can be obtained using the compensated inductor even at high frequency operation. A 6.3W Capacitive coupling WPT system is implemented with an approximately 700pF coupling capacitance by two 108cm2 copper plates and 6.78MHz operation for charging a small power electric device. The experimental results confirm the ZVS and ZCS operation, higher efficiency, and larger output voltage.
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Keywords


Capacitive Coupling Wireless Power Transfer; Zero Voltage Switching; Compensated Inductor; 6.78MHz

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References


V. Isastia, S. Meo, F. Esposito, An optimization technique for the choice of advanced automotive electrical systems, In Proc. of The 5th IASTED International Conference on POWER AND ENERGY SYSTEMS, 2005.

R. Johari, J. Krogmeier, V. D. J. Love, Analysis and Practical Considerations in Implementing Multiple Transmitters for Wireless Power Transfer via Coupled Magnetic Resonance, IEEE Trans. Ind. Electronics, vol. 61, no.4, Apr., 2014, pp. 1771-1783.
http://dx.doi.org/10.1109/tie.2013.2263780

Q. Zhu, L. Wang, C. Liao, Compensate Capacitor Optimization for Kilowatt-Level Magnetically Resonant Wireless Charging System, IEEE Trans. Ind. Electronics, vol. 61, no.12, Dec., 2014, pp. 6758-6768.
http://dx.doi.org/10.1109/tie.2014.2321349

T. C. Beh, M. Kato, T. Imura,S. Oh, Y. Hori, Automated Impedance Matching System for Robust Wireless Power Transfer via Magnetic Resonance Coupling,IEEE Trans. Ind. Electronics, vol. 60, no.9, Sep., 2013, pp. 3689-3698.
http://dx.doi.org/10.1109/tie.2012.2206337

S. A. Mirbozorgi, H. Bahrami, M. Sawan, B. Gosselin, A Smart Multi coil Inductively Coupled Array for Wireless Power Transmission, IEEE Trans. Ind. Electronics, vol. 61, no.11, Nov., 2014, pp. 6061-6070.
http://dx.doi.org/10.1109/tie.2014.2308138

C. Mi, G. Buja, S. Y. Choi, C. T.Rim, Modern Advances in Wireless Power Transfer Systems for Roadway Powered Electric Vehicles, IEEE Trans. Ind. Electronics, vol. 63, no.10, Oct., 2016, pp. 6533-6345.
http://dx.doi.org/10.1109/tie.2016.2574993

S. Li, Z. Liu, H. Zhao, L. Zhu, C. Shuai, Z. Chen, Wireless Power Transfer by Electric Field Resonance and Its Application in Dynamic Charging, IEEE Trans. Ind. Electronics, vol. 63, no. 10, Oct., 2016,pp. 6602-6612.
http://dx.doi.org/10.1109/tie.2016.2577625

J. Dai, D. C.Ludois, Capacitive Power Transfer through a Conformal Bumper for Electric Vehicle Charging, IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 4, no. 3, 2016, pp. 1015-1025.
http://dx.doi.org/10.1109/apec.2015.7104827

K. H. Yi, High frequency capacitive coupling wireless power transfer using glass dielectric layers, In Proc. of IEEE WPTC2016, May, 2016, pp.1-3.
http://dx.doi.org/10.1109/wpt.2016.7498857

M. Kline, I. Izyumin, B. Boser, S. Sanders, Capacitive power transfer for contactless charging. In Proc. of IEEE Appl. Power Electr. Conf., Mar. 2011, pp. 1398–1404.
http://dx.doi.org/10.1109/apec.2011.5744775

C. Xia, C. Li, J.Zhang, Analysis of power transfer characteristic of capacitive power transfer system and inductively coupled power transfer system, In Proc. of IEEE Mech. Sci. Electr. Eng. Comput., 2011, pp. 1281–1285.
http://dx.doi.org/10.1109/mec.2011.6025703

B. H. Choi, D. T.Dguyen, S. J. Yoo, J. H. Kim, C. T. Rim, A novel source-side monitored capacitive power transfer system for contactless mobile charger using class-E converter, In Proc. of IEEE Veh. Technol. Conf., 2014, pp. 1–5.
http://dx.doi.org/10.1109/vtcspring.2014.7023151

K. H. Yi, Electric field wireless power transfer with impedance transformation, In Proc. of IEEE ICCE 2016, Jan. 2016, pp. 365-366.
http://dx.doi.org/10.1109/icce.2016.7430649

L. Huang,A. P. Hu, A. Swwain, X. Dai, Comparison of two high frequency converters for capacitive power transfer, In Proc. of IEEE Energy Convers. Congr. Expo., 2014, pp. 5437–5443.
http://dx.doi.org/10.1109/ecce.2014.6954146

F. Lu, H. Zhang, H. Hofmann, C. Mi, A double-sided LCLC compensated capacitive power transfer system for electric vehicle charging, IEEE Trans. Power Electron., vol. 30, no. 11, 2015, pp. 6011–4014.
http://dx.doi.org/10.1109/tpel.2015.2446891

H. S. Choi, Design consideration of half-bridge LLC resonant converter, J. Power Electron., vol. 7, no. 1, Jan. 2007, pp. 13–20.

B. Yang, F. C. Lee, A. J. Zhang, H. Guisong, LLC resonant converter for front end DC/DC conversion, In Proc. of the APEC Seventeenth Annual IEEE Applied Power Electronics Conference and Exposition, March 2002; Volume 2, pp. 1108–1112.
http://dx.doi.org/10.1109/apec.2002.989382

Z. Fang, T. Cai, S. Duan, C. Chen, Optimal Design Methodology for LLC Resonant Converter in Battery Charging Applications Based on Time-Weighted Average Efficiency, IEEE Trans. Power Electron., Vol. 30, No. 10, Oct. 2015, pp. 5469–5483.
http://dx.doi.org/10.1109/tpel.2014.2379278


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