[paper] Extraction and Automated FEMM Creation of a Transformer SPICE Model

Denys I. Zaikin

Extraction of Transformer Parameters from FEMM Simulations 

and Automated Creation of a Transformer SPICE Model Using a Scripting Language

TechRxiv. Preprint. DOI 10.36227/techrxiv.22263358.v1

*Advent Technologies A/S Lyngvej 8, Aalborg, 9000, Denmark e-mail: denys.zaikin@advent.energy

Abstract: This study presents a method for extracting transformer parameters using simulations in the Finite Element Method Magnetics (FEMM) electromagnetic solver. The extracted parameters represent a full model of a linear transformer and can be used in Simulation Program with Integrated Circuit Emphasis (SPICE) simulations. A model of the transformer is presented in three variants, for which different approaches were used in the transformer simulation in the SPICE program, all yielding the same simulation results. A method for extracting transformer parameters from FEMM is proposed, along with an automated tool based on a scripting language built into the FEMM software [Online open souce https://www.femm.info]

FIG: An example of the simulation setup in FEMM 

and transformer equivalent circuits SPICE Pi-model