Title :
Association of a high power factor power supply using an interleaved boost-flyback converter and a soft-switching full bridge topology
Author :
Gallo, C.A. ; Morais, A.S. ; Tofoli, F.L. ; de Freitas, L.C. ; Farias, V.J. ; Coelho, E.A.A. ; Vieira, J.B. ; Pinto, J. A Corrêa
Author_Institution :
Faculdade de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil
Abstract :
This work presents the operation and design of a high power factor high frequency switching power supply with a power of 2 kW. A good power factor is obtained using as a pre-regulator circuit an AC-DC interleaved boost-flyback converter associated with a non-dissipative snubber operating with high power factor, switching in 100 kHz and without commutation losses. The same non-dissipative snubber associated with the full bridge, switching in 100 kHz converter is used as the DC-DC converter.
Keywords :
AC-DC power convertors; DC-DC power convertors; bridge circuits; network topology; power factor; snubbers; switched mode power supplies; 100 kHz; 2 kW; DC-DC converter; high frequency switching power supply; high power factor; interleaved boost-flyback converter; nondissipative snubber; preregulator circuit; soft-switching full bridge topology; Analog-digital conversion; Bridge circuits; Circuit topology; DC-DC power converters; Frequency; Power supplies; Reactive power; Snubbers; Switching circuits; Switching converters;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1295898
