Vu, Tuan Anh and Pham, Van Chi and Pham, Anh Vu and Gardner, Christopher
(2019)
Wireless Power Transfer Through Metal Using Inductive Link.
International Journal of Power Electronics and Drive Systems (IJPEDS), 10
(4).
ISSN 2088-8694
(In Press)
Abstract
This paper presents a highly efficient power transfer system based on a co-design of a class-E power amplifier (PA) and a pair of inductively coupled Helical coils for through-metal-wall power transfer. Power is transferred wirelessly through a 3.1-mm thick aluminum barrier without any physical penetration and contact. Measurement results show that the class-E
PA achieves a peak power gain of 25.2 dB and a maximum collector efficiency of 57.3%, all at 200 Hz. The proposed system obtains a maximum power transfer efficiency of 9% and it can deliver 5 W power to the receiver side through the aluminum barrier.
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