Title :
A ZVS-ZCS-PWM self resonant DC-DC Sepic converter
Author :
Treviso, C.H.G. ; de Freitas, L.C. ; Farias, V.J.
Author_Institution :
Univ. Federal de Uberlandia, Santa Monica, Brazil
Abstract :
This paper presents a Sepic DC-DC converter using a novel lossless commutation cell for high switching frequency and high power operation. The proposed cell consists of one main and one auxiliary switch, with ZVS and ZCS switching characteristics, respectively. The most important property of this cell is the ability to regulate output power and voltage by pulse-width-modulation (PWM), with constant operating frequency, without load limitation and without sacrificing the lossless commutation. A first analysis of the operating principles, relevant equations, state space phase and simulation results for a specific case of the converter, are presented. These procedures will be validated by a prototype laboratory implementation
Keywords :
DC-DC power convertors; PWM power convertors; commutation; resonant power convertors; switching circuits; PWM; ZCS; ZVS; high power operation; high switching frequency; lossless commutation cell; pulse-width-modulation; self resonant DC-DC Sepic converter; simulation; state space phase; DC-DC power converters; Power generation; Pulse width modulation; Resonance; Space vector pulse width modulation; Switches; Switching converters; Switching frequency; Zero current switching; Zero voltage switching;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on
Conference_Location :
Bologna
Print_ISBN :
0-7803-1328-3
DOI :
10.1109/IECON.1994.397772
