Abstract
Wireless power transfer, especially in portable devices, offers the main advantage of improved convenience and user experience since there is no need to plug in a physical cable to charge or power the device. A novel method, called hybrid or dual-channel wireless power transfer, combines both the magnetic (inductive) and electric (capacitive) channel. In this project, a theoretical framework is developed that models the relationship between the coupling factor of dual-channel wireless power transfer and the lumped elements of the equivalent circuit representation. The effect of combining both the magnetic and electric channel on the characteristics of energy transfer and misalignment tolerance are determined. The results are validated by simulation and experiment, resulting in the essential coupling models needed to unlock the potential of dual-channel wireless power transfer.
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