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Tuning of a wireless power transfer system with a hybrid capacitor array

Published online by Cambridge University Press:  06 April 2016

Nurcan Keskin*
Affiliation:
School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331-5501, USA
Huaping Liu
Affiliation:
School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331-5501, USA
*
Corresponding author:N. Keskin Email: [email protected]
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Abstract

Power transfer efficiency in loosely coupled inductive systems can be enhanced by resonance. Primary and secondary can be tuned to same resonant frequency. In this paper, MOSFET-based Varactors and switchable capacitors are used for re-tuning of such a system at 13.56 MHz. This is achieved either using each cap structure alone or as a hybrid model. These techniques are designed for 13.56 MHz wireless power transfer system.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2016 

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References

REFERENCES

[1]Tseng, R.; Novak, B.V.; Shevde, S.; Grajski, K.A.: Introduction to the alliance for wireless power loosely-coupled wireless power transfer system specification version 1.0, in IEEE Wireless Power Transfer Conf., Technologies, Systems and Applications, Perugia, Italy, 15–16 May (2013), 7983.Google Scholar
[2]Riehl, P.S. et al. : Wireless power systems for mobile devices supporting inductive and resonant operating modes. IEEE Trans. Microw. Theory Tech., 63 (3) (2015), 780790.Google Scholar
[3]Dai, J.; Ludois, D.C.: A survey of wireless power transfer and a critical comparison of inductive and capacitive coupling for small gap applications. IEEE Trans. Power Electron., (2015), 30, 114.Google Scholar
[4]Lu, Y.; Li, X.; Ki, W.-H.; Tsui, C.-Y.; Yue, P.: A 13.56 MHz fully integrated 1x/2x active rectifier with compensated bias current for inductively powered devices, in IEEE ISSCC, (2013), 6668.Google Scholar
[5]Li, X.; Tsui, C.-Y.; Ki, W.-H.: A 13.56MHz wireless power transfer system with reconfigurable resonant regulating rectifier and wireless power control for implementable medical devices. IEEE J. Solid-State Circuits, 50 (4) (2015), 978989.CrossRefGoogle Scholar
[6]Stielau, O.H.; Covic, G.A.: Design of loosely coupled inductive power transfer systems, in Proc. Power System Technology, (2000), 8590.Google Scholar
[7]Wang, C.-S.; Stielau, O.H.; Covic, G.A.: Load Models and their application in the design of loosely coupled inductive power transfer systems, in Proc. Power System Technology, (2000), 10531058.Google Scholar
[8]Fotopoulou, K.; Flynn, B.W.: Wireless power transfer in loosely coupled links: coil misalignment model. IEEE Trans. Magn., 47 (2) (2011), 416430.Google Scholar
[9]Zhou, W.; Hao, M.: Design considerations of compensation topologies in ICPT system, in Applied Electronics Conf., (2007), 985990.Google Scholar
[10]Jegadeesan, R.; Guo, Y.-X.: Topology selection and efficiency improvement of inductive power links. IEEE Trans. Antenna Propag., 60 (10) (2012), 48464854.Google Scholar
[11]Mastri, F.; Costanzo, A.; Dionigi, M.; Mongiardo, M.: Harmonic balance design of wireless resonant-type power transfer links, in IEEE MTT-S Int. Microwave Workshop on Innovative Wireless Power Transmission (IMWS), (2012), 245248.CrossRefGoogle Scholar
[12]Rashidzadeh, R.; Basith, I.I.: A test probe for TSV using resonant inductive coupling, in IEEE Int. Test Conf., (2013), 16.Google Scholar
[13]Hu, C.C.: Modern Semiconductor Devices for Integrated Circuits, 1st ed., Prentice-Hall, 2009.Google Scholar
[14]Ogawa, K.; Oodachi, N.; Obayashi, S.; Shoki, H.: A study of efficiency improvement of wireless power transfer by impedance matching, in IEEE MTT-S Int. Microwave Workshop on Innovative Wireless Power Transmission (IMWS), (2012), 155157.Google Scholar
[15]Mercier, P.P.; Chandrakasan, A.: Rapid wireless capacitor charging using a multi-tapped inductively-coupled secondary coil, in IEEE Trans. Circuits and Systems I Regular Papers, September (2013), 22632272.Google Scholar
[16]Jung, Y.K.; Lee, B.: Design of adaptive optimal load circuit for maximum wireless power transfer efficiency, in Asia-Pacific Microwave Conf. Proc. (APMC), (2013), 12211223.Google Scholar
[17]Lee, J.; Lim, Y.-S.; Yang, W.-J.; Lim, S.-O.: Wireless power transfer system adaptive to change in coil separation. IEEE Trans. Antennas Propag., 62 (2014), 889897.Google Scholar
[18]Heebl, J.D.; Thomas, E.M.; Penno, R.P.; Grbic, A.: Comprehensive analysis and measurement of frequency-tuned and impedance-tuned wireless non-radiative power-transfer systems. IEEE Antennas Propag. Mag., (2014), 56, 4460.Google Scholar
[19]Lee, H.-M.; Kwon, K.-Y.; Li, W.; Ghovanloo, M.: A power-efficient switched-capacitor stimulating system for electrical/optical deep brain stimulation. IEEE J. Solid-State Circuits, (2015), 50, 360374.Google Scholar
[20]Buisman, K. et al. : Varactor topologies for RF adaptivity with improved power handling and linearity, in Proc. IEEE/MTT-S Int. Microwave Symp., (2007), 319322.Google Scholar
[21]Buisman, K.; Cong, Huang ; Zampardi, P.J.; de Vreede, L.C.N.: RF power insensitive varactors. IEEE Microw. Wireless Compon. Lett., (2012), 22, 418420.Google Scholar
[22]Ogawa, K.; Oodachi, N.; Obayashi, S.; Shoki, H.: a study of efficiency improvement of wireless power transfer by impedance matching, in IEEE MTT-S Int. Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, Applications (IMWS-IWPT), May (2012), 155157.Google Scholar
[23]Sample, A.P.; Waters, B.H.; Wisdom, S.T.; Smith, J.R.: Enabling seamless wireless power delivery in dynamic environments. Proc. IEEE, 101 (6) (2013), 13431358.Google Scholar
[24]Lai, X.; Yuan, F.: Remote calibration of wireless power harvest, in MWSCAS, (2013), 501–504.Google Scholar
[25]Saltanovs, R.: Multi-capacitor circuit application for the wireless energy transmission system coils resonant frequency adjustment, in IEEE Wireless Power Transfer Conf. (WPTC), (2015), 13.CrossRefGoogle Scholar