Large-Signal Properties in MnZn Ferrites: Code and Data

Introduction

This repository contains the datasets and code related to the following paper:

• Characterization and Impact of Large-Signal Dielectric Properties in MnZn Ferrites
• Thomas Guillod, William V. R. Roberts, and Charles R. Sullivan
• IEEE APEC 2024

This code simulates the magnetic-dielectric effects in a infinitely long cylindrical core:

• The (average) flux density through the cross-section is imposed (excitation).
• The material parameters can be amplitude-dependent (locally linearized).

Two different solvers are available:

• Quasi-static approximation (no wave propagation and spatially independent material parameters).
• Full wave solution (with wave propagation and spatially dependent material parameters).

Main Files

• paper.pdf - PDF of the paper (not under MIT License)
• slides.pdf - PDF of the slides (not under MIT License)
• get_param.m - Definition of the solver parameters
• run_single.m - Solve the electromagnetic problem in a core with a given cross-section
• run_sweep.m - Solve the electromagnetic problem in cores with different cross-sections

Datasets

• N87_eps_small - EPCOS TDK N87 - Small-Signal Permitivitty
• N87_eps_large - EPCOS TDK N87 - Large-Signal Permitivitty
• N87_eps_temperature - EPCOS TDK N87 - Temperature Permitivitty
• N87_mu_small - EPCOS TDK N87 - Small-Signal Permeability
• N87_mu_large - EPCOS TDK N87 - Large-Signal Permeability

Compatibility

• Tested with MATLAB R2023a.
• The pde_toolbox is required.

Author

• Thomas Guillod
• Email: guillod@otvam.ch
• Website: https://otvam.ch

Credits

This code was created at Dartmouth College by the research group of Prof. Sullivan:

• Dartmouth College, NH, USA: https://dartmouth.edu
• Dartmouth Engineering: https://engineering.dartmouth.edu
• PMIC: https://pmic.engineering.dartmouth.edu

License

This project is licensed under the MIT License, see LICENSE.md.