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In this paper, we present an impedance matching technique in magnetic-coupling-resonance wireless power transfer system for small implantable medical devices. By developing an equivalent circuit model of the WPT system, we show that impedance matching can be realized. Electromagnetic field simulations demonstrated that our proposed technique has capability of achieving maximum input power and available...
In this paper, we develop an analytical model of a rectifier circuit that is used in wireless power transfer (WPT) systems, considering the switching timing, ON/OFF resistance, and load characteristics of the rectifier. The model enables us to estimate the performance of the rectifier and optimum load resistance that maximizes the output power and the power efficiency. The model can be extended into...
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