Baluns are used quite extensively in electronic design specially in higher frequency or differential circuits. The term “Balun” is an abbreviation for Balanced – Unbalanced. The implication is that a balun converts an unbalanced signal to balanced signals. In some ways Balun operation is not intuitive. An article describing the basics of baluns is presented by Signal Processing Group Inc.’s technical team and can be accessed at http://www.signalpro.biz/free_report_form_balun.html