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An Overview of Resonant Circuits for Wireless Power Transfer

1
Department of Electrical and Electronic Engineering, The University of Hong Kong, Hong Kong, China
2
School of Energy and Environment, City University of Hong Kong, Hong Kong, China
3
Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
*
Author to whom correspondence should be addressed.
Academic Editor: William Holderbaum
Energies 2017, 10(7), 894; https://doi.org/10.3390/en10070894
Received: 1 April 2017 / Revised: 25 June 2017 / Accepted: 27 June 2017 / Published: 30 June 2017
With ever-increasing concerns for the safety and convenience of the power supply, there is a fast growing interest in wireless power transfer (WPT) for industrial devices, consumer electronics, and electric vehicles (EVs). As the resonant circuit is one of the cores of both the near-field and far-field WPT systems, it is a pressing need for researchers to develop a high-efficiency high-frequency resonant circuit, especially for the mid-range near-field WPT system. In this paper, an overview of resonant circuits for the near-field WPT system is presented, with emphasis on the non-resonant converters with a resonant tank and resonant inverters with a resonant tank as well as compensation networks and selective resonant circuits. Moreover, some key issues including the zero-voltage switching, zero-voltage derivative switching and total harmonic distortion are addressed. With the increasing usage of wireless charging for EVs, bidirectional resonant inverters for WPT based vehicle-to-grid systems are elaborated. View Full-Text
Keywords: magnetic resonance; wireless power transfer; non-resonant converters; resonant inverters; compensation networks; selective resonant circuits magnetic resonance; wireless power transfer; non-resonant converters; resonant inverters; compensation networks; selective resonant circuits
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MDPI and ACS Style

Jiang, C.; Chau, K.T.; Liu, C.; Lee, C.H.T. An Overview of Resonant Circuits for Wireless Power Transfer. Energies 2017, 10, 894. https://doi.org/10.3390/en10070894

AMA Style

Jiang C, Chau KT, Liu C, Lee CHT. An Overview of Resonant Circuits for Wireless Power Transfer. Energies. 2017; 10(7):894. https://doi.org/10.3390/en10070894

Chicago/Turabian Style

Jiang, Chaoqiang; Chau, K. T.; Liu, Chunhua; Lee, Christopher H. T. 2017. "An Overview of Resonant Circuits for Wireless Power Transfer" Energies 10, no. 7: 894. https://doi.org/10.3390/en10070894

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