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Resonant coupling is the technology widely applied for efficient wireless power transfer in medium ranges. This paper applies reflected load theory to analyze the multi-coil system consisting of several resonators. Different number of resonators would change resistance reflected to primary side and influence power delivered to load. To optimize power transmission of system, this paper purposes a method...
Conventionally, in wireless power transfer (WPT) system, all resonators are set at exactly the same resonant frequency, which is considered as the optimal operation condition to achieve resonant coupling. However, at over-coupled region, frequency split issue occurs, as a result, the frequency for the maximum power is not coincident with the frequency for the maximum efficiency. This deteriorates...
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