CPE2RC

MATLAB code for calculating the RC approximats of fractional-order capacitors

MATLAB code for calculating the values of passive elements for Foster (Foster_I, Foster_II), Cauer (Cauer_I, Cauer_II), and Valsa networks for approximating the impedance of fractional-order capacitors using Continued Fraction Expansion (cfe), Oustaloup (oust), and refined Oustaloup (oust_ref) approximations

For more detail, please see:

Georgia Tsirimokou, A systematic procedure for deriving RC networks of fractional-order elements emulators using MATLAB,AEU - International Journal of Electronics and Communications, Volume 78, 2017, Pages 7-14 https://doi.org/10.1016/j.aeue.2017.05.003.

The toolbox is launched by typing cpe2rc

A GUI is available for entering the specs

Features:

-Displaying the approximated impedance function

- Stores the calculated values [R0 R1 R2...Rn] and [C1 C2...Cn] in the workspace as "capacitors" and "resistors"

- Plots of impedance magnitude and phase responses accompanied by the associated error plots

-Stores the magnitude and phase responses of both ideal and approximated impedances in the workspace

The following toolboxes will be also automatically downloaded and installed:

1. Aleksei Tepljakov (2022). FOMCON Toolbox for MATLAB (https://github.com/extall/fomcon-matlab/releases/tag/v1.50.3), GitHub. Retrieved August 13, 2023.

2. Stephen23 (2022). Round to Electronic Component Values (https://www.mathworks.com/matlabcentral/fileexchange/48840-round-to-electronic-component-values), MATLAB Central File Exchange. Retrieved August 13, 2023.

The passive component values are rounded to standard values of E3, E6, E12, E24, E48, E96, and E192 IEC 60063 series

Copyright (c) 2023, Prof. Costas Psychalinos, Dr. Stavroula Kapoulea, and Assist. Prof. Georgia Tsirimokou

University of Patras, Physics Department, Electronics Laboratory, GR-26504, Rio Patras, Greece

e-mail: [e-mail]; [e-mail]; [e-mail];

All rights reserved.