Title :
A lossless commutation PWM full-bridge DC-DC converter using phase shift control
Author :
Pereira, Adriano Alves ; Coelho, Ernane Antônio Alves ; Farias, Valdeir José ; Viera, J.B. ; Ca, L.
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Federal de Uberlandia, Brazil
Abstract :
This paper presents a self resonant PWM full-bridge DC-DC converter using phase shift control. This approach is based in the principle of the self-resonance, that is: an auxiliary voltage source feeds the resonant circuit, charging the capacitor which provides the condition for the zero voltage switching (ZVS) of the main switches. The proposed approach allows building a converter with high power density and high operation efficiency capable of operating over all the load range. The operating principle, theoretical analysis, simulation and experimental results are presented
Keywords :
DC-DC power convertors; PWM power convertors; bridge circuits; commutation; phase control; resonant power convertors; switching circuits; PWM full-bridge DC-DC converter; ZVS; auxiliary voltage source; capacitor charging; high operation efficiency; high power density; lossless commutation; operating principle; phase shift control; self-resonance; simulation; theoretical analysis; zero voltage switching; DC-DC power converters; Feeds; Pulse width modulation; Pulse width modulation converters; RLC circuits; Resonance; Switched capacitor circuits; Switches; Switching circuits; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548837
