Circuit Simulator Compatible Model for the Ring-Dot Piezoelectric Transformer

A lumped-element equivalent circuit model for the ring-dot piezoelectric transformer (PT) is derived based on a one-dimensional analysis of radial vibration mode. Initially, equations magnitudes force, velocity at boundaries each Section device are constitutive and using Kirchhoff plate theory. Similarly, amplitudes input output currents from electric displacement field Gauss’ law. From this analytical approach, an developed and, Taylor expansion, approximated as Mason circuit. key contribution work development simulator compatible which can be used by electronic engineers, without in-depth knowledge underlying material science, to design PTs power conversion applications. The resulting verified against both COMSOL finite element simulations experimental impedance measurements. Compared COMSOL, estimates resonant elements within 1% capacitance estimated 10%. Experimental results match simulation 10% most parameters, frequency. [2022-0154]