True zero current turn-on and turn-off converter family: Analysis, simulation and experimental results

Author

Dias, E.C. ; Freitas, L.C.G. ; Farias, V.J. ; Coelho, E.A.A. ; Vieira, J.B., Jr. ; de Freitas, L.C.

Author_Institution

Power Electron. Res. Group - NuEP, Fed. Univ. of Uberlandia, Uberlandia

fYear

2008

fDate

15-19 June 2008

Firstpage

2030

Lastpage

2035

Abstract

This paper presents a new non dissipative commutation cell applied to a buck converter. The commutation cell is composed by one main switch and two auxiliary switches operating with zero current turn on and off. This new soft-commutation cell presents the following advantages: soft-commutation for a wide load ratio, better current distribution among semiconductors, besides, the main switch must be rated at nominal load current. Therefore, a new true zero turn on and off converter family capable of operating in high frequency could be achieved, providing high power density and efficiency.

Keywords

commutation; current distribution; switching convertors; auxiliary switches; buck converter; nominal load current; nondissipative commutation cell; soft-commutation cell; zero current turn-on-turn-off converter; Analytical models; Capacitors; Chromium; Inductors; Power electronics; Resonance; Semiconductor diodes; Switches; Switching converters; Zero current switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4592242

Filename

4592242