Power-limiting phenomena in a magnetoelectric transducer for wireless power transfer

In this paper, we provide insights to distinguish between the impact of the piezoelectric and the magnetostrictive layers on the electromechanical behavior of a magnetoelectric transducer for wireless power transfer. We estimate the main parameters of interest for the nonlinear behavioral description. The variability of these parameters in the presence or absence of load and at several actuation voltages allows us to differentiate where the main power limitation phenomena take place. The theoretical developments are supported by experimental measurements.