A coupled-inductor, zero-voltage-switched dual-SEPIC converter with low output ripple and noise

Author

Hsiu, Lengnien ; Kerwin, William ; Witulski, Arthur F. ; Carlsten, Ronald ; Ghotbi, Reza

Author_Institution

Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA

fYear

1992

Firstpage

186

Lastpage

193

Abstract

A zero-voltage switch (ZVS), coupled-inductor, multiple-output dual SEPIC power converter is constructed with the objective of low output ripple and noise. The output voltage and current relations for the ZVS dual SEPIC with multiple outputs are derived, and a design procedure is given. A simple conceptual model is developed of the coupled inductors and power transformers on a common core, and the effect of using quasiresonant switching on the zero-ripple condition is examined. A 36 V to 5 and 15 V experimental prototype is constructed, and total ripple and noise voltages of less than 3 mV peak are observed on both outputs

Keywords

power convertors; power inductors; power transformers; switching circuits; 15 V; 36 V; 5 V; ZVS; coupled inductors; design; dual SEPIC power converter; model; noise; output ripple; power inductors; power transformers; quasiresonant switching; switching circuits; Electromagnetic interference; Power amplifiers; Power harmonic filters; Power supplies; Resonance; Switches; Switching converters; Switching frequency; Working environment noise; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, 1992. INTELEC '92., 14th International

Conference_Location

Washington, DC

Print_ISBN

0-7803-0779-8

Type

conf

DOI

10.1109/INTLEC.1992.268443

Filename

268443