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

Volume

2

fYear

1996

fDate

23-27 Jun 1996

Firstpage

1879

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE

Conference_Location

Baveno

ISSN

0275-9306

Print_ISBN

0-7803-3500-7

Type

conf

DOI

10.1109/PESC.1996.548837

Filename

548837