Impedance transformers for compact and robust coupled magnetic resonance systems
2013
An innovative coupled magnetic resonance system (CMRS), introducing two lumped impedance transformers, is proposed. The source coil and load coil of conventional CMRS are replaced with two cored transformers so that the system can be quite compact in size and robust to ambient changes. The design of the system is simplified due to no magnetic flux leakage from the source coil and load coil. A class-E inverter at 500 kHz switching frequency was used for experiments. It is concluded in this paper that the CMRS, in general, is a special form of conventional inductive power transfer systems.
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