Doctorate Theses 2006 Posted: November 27, 2011 Contributions for fuel cell’s energy processing systems. By: Yales Rômulo de Novaes, 2006. Space vector modulation applied to threephase unidirectional pwm rectifiers. By: Flabio Alberto Bardemaker Batista, 2006. Three-phase step-up DC-DC converter with a high frequency isolation transformer. By: Sergio Vidal Garcia Oliveira, 2006.