An improved duty cycle ZVT two swicth forward converter

In this paper, an isolated dc-dc converter based on an active demagnetization structure is presented in order to demagnetize transformer of a converter. Also, duty cycle limitation of two switch forward converter is improved with using this structure. At the same time, A Zero Voltage Transition (ZVT...

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Bibliographic Details
Published in2018 5th International Conference on Electrical and Electronic Engineering (ICEEE) pp. 36 - 40
Main Authors Bodur, Haci, Zungor, Fatih, Akboy, Erdem
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2018
Subjects
Capacitors
Inductance
Logic gates
soft switching
Switches
Switching loss
two switch forward
Zero current switching
Zero voltage switching
zero voltage transition
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Summary:In this paper, an isolated dc-dc converter based on an active demagnetization structure is presented in order to demagnetize transformer of a converter. Also, duty cycle limitation of two switch forward converter is improved with using this structure. At the same time, A Zero Voltage Transition (ZVT) cell is integrated into this improved converter and Soft Switching (SS) for the switches is achieved, too. So, the proposed converter has features duty cycle more than %50 and no turn on switching losses. Operation principles, theoretical analyses and design methods are presented. These theoretical analyses are verified with simulation results using PowerSIM (PSIM) programme.
DOI:10.1109/ICEEE2.2018.8391297