Finite Element Analysis and Mathematical Modelling of Rosen Piezoelectric Transformer: A Review

In this work, the introduction to the traditional magnetic high frequency transformers is provided along with the trending piezoelectric transformers. The working principle of magnetic transformer is explained in comparison with the piezoelectric transformer. This paper provides a glimpse of existing architectures in the field of piezoelectric transformers. Furthermore, a simulation model is developed using computational tool on the existing specific: single layer thickness mode polarized Rosen transformer. The mathematical model is developed using Mason's lumped parameter modelling. The equivalent circuit parameters, key electrical parameters are derived from the Mason's lumped parameter modelling and the simulation results are compared with the peer reviewed journals. The objective of the paper is to carry out the review on piezoelectric transformer for analyzing its performance and to further emphasize on possibility to improve the performance of PT's with novel geometrical structures.