A magnetically coupled regenerative turn-on and turn-off snubber configuration

Author

Menegáz, Paulo J M ; Vieira, José L F ; Simonetti, Domingos S L

Author_Institution

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

Volume

47

Issue

4

fYear

2000

fDate

8/1/2000 12:00:00 AM

Firstpage

722

Lastpage

728

Abstract

This paper presents a magnetically coupled regenerative turn-on and turn-off snubber configuration applied to a boost converter, which operates in continuous conduction mode (CCM). In addition to reducing the stresses in the switch, providing soft transitions in its turn-off voltage and turn-on current, it transfers the energy stored in the snubber capacitor to the load. This is achieved by using a coupled inductor mounted on the main inductor of the converter, which resets the capacitor voltage at each switching period. Design equations, as well as experimental results are presented, showing the high performance of the boost converter using the proposed snubber

Keywords

DC-DC power convertors; power capacitors; power inductors; snubbers; switching circuits; DC/DC power conversion; boost converter; continuous conduction mode operation; coupled inductor; magnetically-coupled regenerative turn-on/turn-off snubber; snubber capacitor; soft transitions; switching period; turn-off voltage; turn-on current; Capacitors; Coupling circuits; Impedance; Inductors; Resonance; Snubbers; Stress; Switches; Switching converters; Voltage;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.857951

Filename

857951