Three self-resonant PWM forward converters studied in a comparative way

Author

Pereira, Arvind A. ; Farias, Valdeir Jose ; de Freitas, Luiz C. ; Vieira, J.B. ; Vieira, J.B.

Author_Institution

Departamento de Engenharia Eletrica, Univ. Fed. de Uberlandia, Brazil

Volume

2

fYear

1998

fDate

1-3 Dec. 1998

Firstpage

990

Abstract

This paper will present a comparison of three structures working with nondissipative commutation. This comparison will be made using the efficiency as parameter. The soft commutation is obtained by using the following procedures: 1) with the association of the cell that provides the soft commutation switching to a Forward converter and 2) using two nondissipative snubbers for the others two structures. The proposed approaches allow building a converter with high operation frequency. A detailed analysis of the operation will be presented. The output voltage is controlled by PWM. The complete operating principles, theoretical analysis, relevant equations, simulation and experimental results will be presented.

Keywords

PWM power convertors; commutation; resonant power convertors; snubbers; switched mode power supplies; switching convertors; zero current switching; zero voltage switching; SMPS; nondissipative commutation; pulse width modulated power convertors; self-resonant PWM converters; snubbers; soft commutation switching; switched mode power supplies; zero current switching; zero voltage switching; Circuits; Frequency conversion; IEEE members; Pulse width modulation; Pulse width modulation converters; Resonance; Snubbers; Switched-mode power supply; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronic Drives and Energy Systems for Industrial Growth, 1998. Proceedings. 1998 International Conference on

Print_ISBN

0-7803-4879-6

Type

conf

DOI

10.1109/PEDES.1998.1330736

Filename

1330736