Title :
Buck quasi-resonant converter operating at constant frequency: analysis, design and experimentation
Author :
Barbi, Ivo ; Bolacell, J.C. ; Martins, D.C. ; Libano, F.B.
Author_Institution :
Dept. of Electr. Eng., Federal Univ. of Santa Catarina, Florianopolis, Brazil
Abstract :
Consideration is given to a buck zero-current-switching quasi-resonant converter (buck-PWM-ZCS-QRC) operating at constant frequency. Operation principle and design-oriented analysis are presented, with normalized design curves, design procedure, design example, simulations, and experimental results. The new topology is compared with the well-established Buck-FM-ZCS-QRC proposed by F.C. Lee (Proc. IEEE, vol.76, Apr.1988), which can be considered as a particular topology
Keywords :
power convertors; pulse width modulation; buck zero-current-switching quasi-resonant converter; buck-PWM-ZCS-QRC; constant frequency operation; design procedure; normalized design curves; Capacitors; Frequency conversion; Inductors; Pulse width modulation; RLC circuits; Resonance; Semiconductor diodes; Switches; Voltage; Zero current switching;
Conference_Titel :
Power Electronics Specialists Conference, 1989. PESC '89 Record., 20th Annual IEEE
Conference_Location :
Milwaukee, WI
DOI :
10.1109/PESC.1989.48572
