Table of Contents
Advances in Power Electronics
Volume 2011, Article ID 215376, 6 pages
Research Article

Flash FPGA-Based Numerical Pulse-Width Modulator

LABCATyP, Department of Electronics, Faculty of Engineering, University of Buenos Aires, Buenos Aires, Argentina

Received 1 November 2010; Accepted 8 February 2011

Academic Editor: Jose Pomilio

Copyright © 2011 Ricardo Arias 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.


A pulse-width modulator to drive three-phase AC motors is described. It performs a numerical modulation technique, also known as optimum or calculated modulation, but, in order to reduce hardware resources, a hybrid approach merging that calculated modulation with proportional modulation is proposed. The modulator is tested in a flash-based field programmable gate array (FPGA) implementation.