A stressless buck quadratic PWM soft switched converter

Author

Pereira, Adriano A. ; Treviso, Carlos H G ; Barbosa, Lúcio R. ; Rossi, José L., Jr. ; de Almeida, M.

Author_Institution

Departamento de Engenharia Eletrica, Univ. Estadual de Londrina, Brazil

fYear

2002

fDate

2002

Firstpage

150

Lastpage

155

Abstract

High switching frequency associated with soft commutation techniques is a trend in switching converters. Following this trend, it is presented a new topology of a PWM Buck Quadratic converter. The DC voltage conversion ratio of this converter has a quadratic dependence on duty cycle, providing a large step-down. The circuit proposed is able to operate with soft switching in a pulse-width-modulation (PWM) way. In addiction such converter provides a high efficient operating condition for a wide load range at high-switching frequency. In order to illustrate the operational principle of this new converter a detailed study, including simulations is carried out. The validity of this new converter is guaranteed by the obtained results.

Keywords

DC-DC power convertors; PWM power convertors; switching convertors; DC voltage conversion ratio; PWM buck quadratic converter; duty cycle; operating condition; soft commutation techniques; soft switching; stressless buck quadratic PWM soft switched converter; switching frequency; Circuit topology; Frequency conversion; Pulse circuits; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Switching circuits; Switching converters; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 2002. INTELEC. 24th Annual International

Print_ISBN

0-7803-7512-2

Type

conf

DOI

10.1109/INTLEC.2002.1048649

Filename

1048649