Abstract

In this paper, we develop a wireless power transfer (WPT) system using a virtual-current source resonant inverter (VCSRI). The concept, theoretical analysis, simulations and experimental results have been reported. With the current source feature, there have been various advances such as the sort-circuit protection and the reduction of current stress on switching devices. To validate the proposed WPT system, a scaled-down laboratory hardware prototype was built and tested. Then, the results were revealed that the proposed WPT could work properly when compare between simulations and experimental results. The comparison of maximum dc to dc power efficiencies between the conventional system (without control) and the proposed system (VCSRI) were 52 % and 60 %, respectively.

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