Wireless Power Transfer System and Its Application

Shiqi Li

《Frontiers in Science and Engineering》 1卷6期 (2021/09) Pp. 107-113

https://doi.org/10.29556/FSE.202109_1(6).0014

摘要

The Wireless power transfer (WPT) technology has been used in a large number of practical applications, such as electric vehicles, implantable medical devices, portable electronics and Internet of Things. In general, the transmission distance is restricted and the power transfer efficiency (PTE) is limited in the WPT system. The main reason is that the coupling efficiency between the resonators drops sharply when the coil-to-coil distance increases. In addition, when the WPT systems deliver energy, the electromagnetic (EM) noise is unavoidably generated and harmful to electrical products, even to the human beings. Therefore, some actions should be taken into account to reduce the EM radiation without affecting system performance in the WPT charging devices.

關鍵字

WPT System ； Charging Devices ； Electric Vehicles

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