Canesin, Carlos Alberto [UNESP]Barbi, Ivo [UNESP]2014-05-272014-05-271991-03-01Conference Procedings - IEEE Applied Power Electronics Conference and Exhibition - APEC, p. 430-436.http://hdl.handle.net/11449/64121The authors present an offline switching power supply with multiple isolated outputs and unity power factor with the use of only one power processing stage, based on the DC-DC SEPIC (single ended primary inductance converter) modulated by variable hysteresis current control. The principle of operation, the theoretical analysis, the design procedure, an example, and simulation results are presented. A laboratory prototype, rated at 160 W, operating at a maximum switching frequency of 100 kHz, with isolated outputs rated at +5 V/15 A -5 V/1 A, +12 V/6 A and -12 V/1 A, has been built given an input power factor near unity.430-436engElectric Power FactorElectron ConvertersElectronic Circuits, Power SupplyIsolated outputsSwitching-mode power suppliesUnity power factorElectric Power Supplies to ApparatusTrabalho apresentado em evento10.1109/APEC.1991.146207Acesso aberto2-s2.0-00261251516427185658143370