Author Affiliations

D. B. Mazulquim,¹ G. A. Cirino,^2,† and L. G. Neto^1,*

¹Department of Electrical Engineering - EESC, University of Sao Paulo, Av. Trabalhador São-carlense, 400, Postal Code: 13566-590, São Carlos, SP - Brazil

²CCET – Federal University of Sao Carlos, Rod. Washington Luís, km 235, Postal Code: 13565-905, São Carlos, SP - Brazil

^†During this work G. A. Cirino was working at the same place as the other authors.

^*Corresponding author: lgneto@sc.usp.br