Wireless power transfer—An overview

Z Zhang, H Pang, A Georgiadis… - IEEE transactions on …, 2018‏ - ieeexplore.ieee.org
Due to limitations of low power density, high cost, heavy weight, etc., the development and
application of battery-powered devices are facing with unprecedented technical challenges …

Design, challenges, and trends of inductive power transfer couplers for electric vehicles: A review

S Jayalath, A Khan - IEEE Journal of Emerging and Selected …, 2020‏ - ieeexplore.ieee.org
The magnetic coupler is the heart of an inductive power transfer (IPT) system, which
facilitates wireless power transfer through its air gap. The couplers are designed to …

Frequency and parameter combined tuning method of LCC–LCC compensated resonant converter with wide coupling variation for EV wireless charger

J Deng, Q Mao, W Wang, L Li, Z Wang… - IEEE Journal of …, 2021‏ - ieeexplore.ieee.org
The characteristics of inductive power-transfer (IPT) systems are sensitive to the variation of
the coupling coefficient caused by misalignment conditions or different gaps. This results in …

Angular-misalignment insensitive omnidirectional wireless power transfer

Z Zhang, B Zhang - IEEE Transactions on Industrial Electronics, 2019‏ - ieeexplore.ieee.org
This paper proposes a quadrature-shaped pickup coil, which can realize an angular-
misalignment insensitive omnidirectional wireless charging system. Recently, the three …

A novel unsymmetrical coupling structure based on concentrated magnetic flux for high-misalignment IPT applications

Y Yao, Y Wang, X Liu, Y Pei… - IEEE Transactions on …, 2018‏ - ieeexplore.ieee.org
The capability of misalignment tolerance is vital for an inductive power transfer system. This
paper proposes a novel unsymmetrical coupling structure that can remarkably enhance the …

A metamaterial-coupled wireless power transfer system based on cubic high-dielectric resonators

R Das, A Basir, H Yoo - IEEE Transactions on Industrial …, 2018‏ - ieeexplore.ieee.org
In this paper, a metamaterial-coupled, highly efficient, miniaturized, and long-range wireless
power transfer (WPT) system based on a cubic high-dielectric resonator (CHDR) is explored …

Tunable Class DC–DC Converter With High Efficiency and Stable Output Power for 6.78-MHz Wireless Power Transfer

S Liu, M Liu, S Han, X Zhu, C Ma - IEEE Transactions on Power …, 2017‏ - ieeexplore.ieee.org
Class DC–DC converter composed of Class power amplifier (PA) and rectifier is a promising
candidate for MHz wireless power transfer. It is soft-switching based and able to achieve …

Plane-type receiving coil with minimum number of coils for omnidirectional wireless power transfer

JH Kim, BG Choi, SY Jeong, SH Han… - … on Power Electronics, 2019‏ - ieeexplore.ieee.org
In this article, a novel structure of a receiving (Rx) coil with only two coils, which enables
omnidirectional wireless power transfer (WPT) for any type of transmitting (Tx) system, is …

A novel all-direction antimisalignment wireless power transfer system designed by truncated region eigenfunction expansion method

Z Dong, X Li, S Liu, Z Xu, L Yang - IEEE Transactions on Power …, 2021‏ - ieeexplore.ieee.org
This article proposes a novel wireless power transfer (WPT) system, which achieves high
misalignment tolerance in all directions by using antiparallel windings. The transmitter coil is …

Sphere-shaped receiver coil for misalignment-resilient wireless power transfer systems for implantable devices

A Basir, IA Shah, H Yoo - IEEE Transactions on Antennas and …, 2022‏ - ieeexplore.ieee.org
Positional misalignments of coils cause a sharp drop in the power transfer efficiency (PTE) of
wireless power transfer (WPT) systems. To minimize this deterioration of the PTE, this study …