Wireless charging is a technology of transmitting power through an air gap to electrical
devices for the purpose of energy replenishment. The recent progress in wireless charging …

Recently, electric vehicles (EVs) are becoming increasingly popular, as they decrease
reliance on fossil fuels and reduce greenhouse gas emissions. However, there are still many …

Recently, omnidirectional wireless power transfer systems have been studied intensely due
to their improved flexibility when compared with their planar counterparts. In this paper, a …

Nonidentical current control methods for 2-and 3-D omnidirectional wireless power systems
are described. The omnidirectional power transmitter enables ac magnetic flux to flow in all …

Megahertz-range wireless power transfer has become a promising approach for increasing
spatial freedom of charging. This article proposes a cylindrical-shaped coil, which can …

In recent years, wireless power technology has been promoted for recharging systems for
portable devices that are used in everyday life. The conventional technology used for this …

Part-II of this paper focuses on the mathematical analysis of the 3-D omnidirectional wireless
power transfer (WPT) and also addresses the general principle of load detection. It provides …

This paper presents the basic control principles of omnidirectional wireless power transfer
(WPT) based on the current amplitude control. The principles involve 1) an “omnidirectional” …

Magnetic resonant coupling (MRC) wireless power transfer (WPT) technology provides a
novel solution to the tricky power-charging issue of densely connected sensor devices in the …

Use of magnetic fields (MFs) for underwater wireless communication is very promising
nowadays due to its advantages such as low power, low cost, no multipath, no Doppler …