\documentclass[12pt,a4paper]{article}
\usepackage{amsmath,amsthm,amsfonts,amssymb,amscd}
\usepackage{times}              
% Use Times New Roman
\usepackage{graphicx}           
% Enhanced support for images
\usepackage{float}              
% Improved interface for floating objects
\usepackage{booktabs}           
% Publication quality tables
\usepackage{xcolor}             
% Driver-independent color extensions
\usepackage{geometry}           
% Customize document dimensions
\usepackage{fullpage}           
% all 4 margins to be either 1 inch or 1.5 cm
\usepackage{comment}            
% Commenting
\usepackage{minted}             
% Highlighted source code. Syntax highlighting
\usepackage{listings}           
% Typeset programs (programming code) within LaTeX
\usepackage{lastpage}           
% Reference last page for Page N of M type footers.
\usepackage{fancyhdr}           
% Control of page headers and footers
\usepackage{hyperref}           
% Cross-referencing 
\usepackage[small,bf]{caption}  
% Captions
\usepackage{multicol}
\usepackage{tikz}               
% Creating graphic elements
\usepackage{circuitikz}         
% Creating circuits
\usepackage{verbatim}          
% Print exactly what you type in
\usepackage{cite}               
% Citation
\usepackage[us]{datetime} 
% Various time format
\usepackage{blindtext}
% Generate blind text
\usepackage[utf8]{inputenc}
\usepackage{array}
\usepackage{makecell}
\usepackage{tabularx}
\usepackage{titlesec}
\input {defs.tex}
\begin{document}
%%%%%%%%%%%%%%%%%%%
%    TEMPLATE     %
%%%%%%%%%%%%%%%%%%%
\input{titlepage}
\newpage
\pagenumbering{Roman}
\LARGE  %can be canceled for smaller overall text
\tableofcontents
\newpage
\pagenumbering{arabic} 
%\blindtext[1]
%COPY ONE OF THE BELOW TEMPLATES SECTION HERE%
\end{document}
%%%%%%%%%%%%%% TEMPLATE SECTION (NORMAL) %%%%%%%%%%%%%% 
%\section{Introduction}
%%Text :
%Patati
%%%%%%%%% TEMPLATE SUBSECTION (WITH NORMALSECTION) %%%%%%%%%
%\section{Titre}
%\subsection{Sous-Titre}
%%Text :
%Patata
%%%%%%%%%%% TEMPLATE CONTINUE SUBECTION (NORMAL) %%%%%%%%%%% 
%\subsection{TEMPLATE}
%%Text :
%Patato
%%%%%%%%%%%%%%% TEMPLATE SECTION (MATH) %%%%%%%%%%%%%%% 
%\section{Mathematical expressions}
%The Fourier transform of the signal $x(t)$ is defined as 
%\begin{equation}
%    X(f)=\int_{-\infty}^{\infty} x(t) e^{-j2\pi ft} \, %\tu{d}t
%    \label{eq: F trans}
%\end{equation}
%where $X(f)$ is the spectrum of the signal at frequency %$f$. The time domain expression can then be reproduced by %synthesizing all frequency content through inverse Fourier %transform as follows.
%\begin{equation}
%    x(t)=\int_{-\infty}^{\infty} X(f) e^{j2\pi ft} \, %\tu{d}f
%    \label{eq: inv F trans}
%\end{equation}
%By taking the derivative of the equation (\ref{eq: inv F %trans}) with respect to the time $t$, one can prove the %derivative property of the Fourier transform as
%\begin{equation}
%    \frac{\tu{d}x}{\tu{d}t} \qquad \to \qquad (j2\pi f) %X(f)
%    \label{eq: deriv.}
%\end{equation}
%%%%%%%%%%%%%%% TEMPLATE SECTION (TAB) %%%%%%%%%%%%%%% 
%\section{How to include table?}
%%%\blindtext[1]
%
%\begin{table}[H]
%    \caption{Characteristics of the buck converter}
%    \label{tab: Data}
%    \centering
%    \begin{tabular}{c|c|c}
%    \toprule
%     \bf{Input Voltage (V)}& \bf{Output Voltage (V)} & %\textbf{Calculated Duty Cycle} \\
%     \midrule
%    40 & 20 & 0.5\\     (y) ^       
%     50 & 20 & 0.5 \\       |
%     80 & 20 & 0.25 \\      |_____>
%     \bottomrule                 (x)
%    \end{tabular}
%\end{table}
%%%%%%%%%%%%%%% TEMPLATE SECTION (PICTURE) %%%%%%%%%%%%%%% 
%\section{How to include graphics?}
%Images, figures, and photos are usually included in the %context using the command \texttt{includegraphics}  inside %\texttt{figure} environment.
%\begin{verbatim}
%    \begin{figure}[H]
%        \centering
%        \includegraphics[options]{filename}
%        \caption{caption for the figure}
%        \label{fig: figlabel}
%    \end{figure}
%\end{verbatim}
%Figure \ref{fig: ElemntsPE} shows some elements that are frequently used in power electronic converters. This figure is adopted from \cite{FPE}.
%\begin{figure}[H]
%    \centering
%    \includegraphics[width=15cm]{figure_elements.jpg}
%    \caption{Elements of power electronic converters}
%    \label{fig: ElemntsPE}
%\end{figure}
%%%%%%%%%%%%%%% TEMPLATE SECTION (CITATION) %%%%%%%%%%%%%%% 
%\section{How to cite?}
%
%Paper \cite{Gole97} provides guidelines for modeling power %electronics in electric power engineering application. If %you do not include any reference please delete the %reference section at the end of the document (see three %lines of code before \texttt{\textbackslash
%end\{document\}})
%%%%%%%%%%%%%%% TEMPLATE REFERENCES (OTHERS) %%%%%%%%%%%%%%% 
%\newpage
%\bibliographystyle{private_style}
%\bibliography{without_template}