This paper reveals the optimum capacitance value of a receiver -side inductor -capacitor \n(LC) network to achieve the highest efficiency in a capacitive power -transfer system. These findings \nbreak the usual convention of a capacitance value having to be chosen such that complete LC \nresonance happens at the operating frequency. Rather, our findings in this paper indicate that the \ncapacitance value should be smaller than the value that forms the exact LC resonance. These \nanalytical derivations showed that as the ratio of inductor impedance divided by plate impedance \nincreased, the optimum Rx capacitance decreased. This optimum capacitance maximized the TX -to -\nRX transfer efficiency of a given set of system conditions, such as matching inductors and coupling \nplates.
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