An improved boost PWM soft-single-switched converter with low voltage and current stresses

Author

Barbosa, Lúcio Dos R ; Vieira, João B., Jr. ; De Freitas, Luiz C. ; Farias, Valdeir J.

Author_Institution

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

Volume

2

fYear

2000

fDate

6/22/1905 12:00:00 AM

Firstpage

723

Abstract

This paper presents an improved regenerative soft turn-on and turn-off snubber applied to a boost PWM converter. The boost soft-single-switched converter proposed, having only a single active switch, is able to operate with soft switching in a pulse width modulation way without high voltage and current stresses. This is achieved by using an auxiliary inductor, which is magnetically coupled with the main inductor of the converter. In order to illustrate the operating principle of this new converter a detailed study, including simulations as well as experimental results is carried out. The validity of this new converter is guaranteed by the obtained results

Keywords

DC-DC power convertors; PWM power convertors; power inductors; power semiconductor diodes; power semiconductor switches; resonant power convertors; snubbers; switching circuits; auxiliary inductor; boost PWM soft-single-switched power converter improvement; current stress reduction; operating principle; pulse width modulation; single active switch; soft turn-off snubber; soft turn-on snubber; voltage stress reduction; Chromium; Low voltage; Magnetic switching; Pulse width modulation; Pulse width modulation converters; Stress; Switches; Switching circuits; Switching converters; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-5864-3

Type

conf

DOI

10.1109/APEC.2000.822584

Filename

822584