Proposal of a SMPS with AC output voltage employing a quadratic boost converter, a new topology of soft-switched two-switch forward converter and a new topology of PWM three-level half-bridge inverter

Author

Gallo, Carlos A. ; Tofoli, Fernando L. ; Scarpa, Vladimir V R ; Coelho, Ernane A A ; De Freitas, Luiz Carlos ; Farias, Valdeir J. ; Vieira, Joâo Batista

Author_Institution

Dept. of Electr. Eng., UberlandiaFederal Univ., Brazil

Volume

4

fYear

2004

fDate

2004

Firstpage

2604

Abstract

An AC SMPS can be obtained from the association of a new topology of forward converter and a new topology of half-bridge inverter. The DC-DC stage is composed of a quadratic boost converter providing large voltage step-up and a double-ended forward converter, whose output voltages are +200 V_dc and -200 V_dc. The DC-AC stage consists of a symmetrical three-level inverter topology. The operation of the converters is analyzed, as some results concerning the proposed system are presented.

Keywords

AC-AC power convertors; DC-DC power convertors; PWM invertors; network topology; switching convertors; 200 to -200 V; AC output voltage; PWM three-level half-bridge inverter topology; double-ended forward converter; quadratic boost converter; soft-switched two-switch forward converter; Proposals; Pulse width modulation converters; Pulse width modulation inverters; Snubbers; Switched-mode power supply; Switches; Switching converters; Topology; Transformers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual

ISSN

0275-9306

Print_ISBN

0-7803-8399-0

Type

conf

DOI

10.1109/PESC.2004.1355242

Filename

1355242