A ZVT DC-DC self resonant boost converter with improved features

Author

Menegáz, Paulo J M ; Vieíra, Jose L F ; Simonetti, Domingos S L

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Espirito Santo, Brazil

Volume

2

fYear

2004

fDate

20-25 June 2004

Firstpage

1631

Abstract

This paper presents a ZVT DC-DC self-resonant boost converter that uses a magnetic coupling to accomplish the minimum total losses point of the auxiliary switch. Its great advantage is the overall size reduction, because allows to reduce the auxiliary switch heatsink as well as the number of magnetic components of the circuit, once the auxiliary inductor is incorporated into the main one. This fact also reduces the number of radiated EMI sources. A design procedure and a design example are presented, as well as experimental results obtained from a 500 W, 120/300 V_DC, 100 kHz prototype, confirming the operation of the proposed converter and the benefits obtained by its use.

Keywords

DC-DC power convertors; electromagnetic interference; heat sinks; inductors; switching convertors; 100 kHz; 120 V; 300 V; 500 W; EMI sources; ZVT DC-DC self resonant boost converter; auxiliary inductor; auxiliary switch; heatsink; magnetic coupling; Coupling circuits; DC-DC power converters; Electromagnetic interference; Inductors; Magnetic circuits; Magnetic resonance; Magnetic switching; Switches; Switching circuits; Switching converters;

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.2004.1355670

Filename

1355670