This paper describes how a circuit simulation program can assist in teaching the principles of power electronics to undergraduate students. The authors have used Kocaeli University Converter Analysis suite (KUCA) as an aid to teaching principles of power electronics to undergraduate students in either Iran or Turkey. Using KUCA has increased students ability to comprehend the analysis of main building block of power electronics converter circuits. KUCA comes with a user friendly Graphical User Interface (GUI). Drawing the schematic from scratch is not required at all. Selecting the desired topology from a list is all what needs. KUCA can analyses almost all the topologies required for an undergraduate level power electronics course. Transient response, steady state response and harmonic content of desired signal can be obtained quickly and easily which may be very cumbersome, time consuming and error prone to do with pencil-and-paper analysis. (C) 2016 The Authors. Published by IASE. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).