Abstract
We present the characterization and an experimentally validated electromechanical model of a dual-transduction receiver for an electrodynamic wireless power transmission (EWPT) system. The receiver makes use of both piezoelectric and electrodynamic transducers to generate electrical power simultaneously while operating at its torsion mode mechanical resonance (∼744 Hz). The system behavior and output performance under low-frequency, magnetic near-fields are analyzed by establishing an equivalent lumped-element circuit model. A prototype device is fabricated, characterized, and the experimental results are compared with the model predictions under various loading and input conditions. This chip-sized (0.09 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> ), volume-efficient design offers a low-profile and compact footprint for wearable and implantable medical devices applications.
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