Table of Contents
Conference Papers in Engineering
Volume 2013 (2013), Article ID 820879, 9 pages
Conference Paper

Microcontroller Based Less Switches Topology and Digital Gating Technique for Single-Phase Five-Level Inverter

Department of Electrical Engineering, University of Babylon, Hilla, Iraq

Received 8 February 2013; Accepted 29 April 2013

Academic Editors: M. Buamod, M. Elmusrati, A. Gaouda, and H. Koivo

This Conference Paper is based on a presentation given by Mahmoud Shaker at “International Conference on Electrical and Computer Engineering” held from 26 March 2013 to 28 March 2013 in Benghazi, Libya.

Copyright © 2013 Mahmoud Shaker et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The multilevel inverter is the idea of connecting such distributed DC energy sources (solar and fuel cells in addition to rectified output of wind turbines) to a power grid. Multilevel pulse width modulation (PWM) inverters have gained importance in high performance power applications without requiring high ratings on individual devices. The elementary concept of a multilevel converter to achieve higher power is to use a series of power semiconductor switches with several lower voltage DC sources to perform the power conversion by synthesizing a staircase voltage waveform. In the present paper we introduce a power circuit for single-phase five-level inverter which contains a very lower number of switches and the technique for the generation of required signals to control the operation of the inverter switches. The presented technique is implemented via microcontroller ATmega16. The simulation and practical results are presented.