Fuzzy Logic Control of Soft-Switching DC-DC Converter

Martin Leso, Jaroslava Zilkova, Marek Pastor, Jaroslav Dudrik


The paper presents a novel control technique for a phase-shifted PWM (PS-PWM) soft-switching dc-dc converter. The converter is a full bridge dc-dc converter with controlled output rectifier and an active snubber on the secondary side. To solve the problems with nonlinear nature of the dc-dc converter a fuzzy logic control is used. The fuzzy logic controller design and simulation is presented. The performance of the designed fuzzy logic controller is compared to classical PI controller.

DOI: http://dx.doi.org/10.5755/j01.eie.22.5.16334


DC-DC converter; fuzzy logic controller; soft switching

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Print ISSN: 1392-1215
Online ISSN: 2029-5731