Title :
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
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;
Conference_Titel :
Telecommunications Energy Conference, 1992. INTELEC '92., 14th International
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-0779-8
DOI :
10.1109/INTLEC.1992.268443
