A Nonisolated Single-Phase UPS Topology With 110-V/220-V Input-Output Voltage Ratings. - Carlos Gustavo C. Branco; Cícero M. T. Cruz; René P. Torrico-Bascope; Fernando Luiz Marcelo Antunes (IEEE Trans. Ind. Electron., 2008)

Proposal of Three-Phase High-Frequency Transformer Isolation UPS Topologies for Distributed Generation Applications. - Carlos Gustavo C. Branco; René P. Torrico-Bascope; Cícero M. T. Cruz; Francisco Kleber de Araujo Lima (IEEE Trans. Ind. Electron., 2013)