Resonant Capacitors and the Performance of Transcutaneous Energy Transmitters

Daniela Wolter Ferreira and Luiz Lebensztajn


Specific Absorption Rate, Induced Current Density, Transcutaneous Energy Transmitter, Resonant Capacitor


A typical Transcutaneous Energy Transmitter (TET) has high regulation and low efficiency. Its design is highly constrained by biological effects such as relative induced current density and Specific Absorption Rate (SAR) in the skin. This work deals with a systematic analysis of TET configurations, considering the addition of serial resonant capacitors. The efficiency, regulation and SAR were optimized by a multi-objective genetic algorithm (MGA), considering a range of TET parameters and making a set of optimal solutions for the two different situations: with and without capacitors. A surrogate approach was used to model the objective functions and support the optimization with less computational cost in both situations. The results of efficiency, regulation, SAR and relative induced current for each selected configuration were analyzed, comparing the performance of the TET with and without the resonant capacitors.

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