• 2 switch forward inverter for parallel-series resonance alternating (PSA) converter for supplying electric welding arcNiilo, Helar; Vaimann, Toomas10th International Symposium "Topical Problems in the Field of Electrical and Power Engineering”. Doctoral School of Energy and Geotechnology II : Pärnu, Estonia, January 10-15, 20112011 / p. 140-144 : ill