Asymmetric snubberless current-fed full-bridge isolated DC-DC converters

This paper presents two isolated current-fed fullbridge DC-DC converters that can be used to interface a lower voltage source into a DC bus of higher voltage. The first topology uses a resonant circuit to force current redistribution between low-voltage-side transistors and a passive rectifier. The...

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Main Authors: Kosenko Roman, Blinov Andrei, Vinnikov Dmitri, Chub Andrii
Format: Article
Language:English
Published: Riga Technical University Press 2018-07-01
Series:Electrical, Control and Communication Engineering
Subjects:
Online Access:https://doi.org/10.2478/ecce-2018-0001
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author Kosenko Roman
Blinov Andrei
Vinnikov Dmitri
Chub Andrii
author_facet Kosenko Roman
Blinov Andrei
Vinnikov Dmitri
Chub Andrii
author_sort Kosenko Roman
collection DOAJ
description This paper presents two isolated current-fed fullbridge DC-DC converters that can be used to interface a lower voltage source into a DC bus of higher voltage. The first topology uses a resonant circuit to force current redistribution between low-voltage-side transistors and a passive rectifier. The second topology utilizes an active rectifier with secondary modulation to achieve the same goal. The resonant circuit can be formed by using transformer leakage inductance and the parasitic capacitances of the switches. The converters feature soft switching of semiconductors over a wide range of operating conditions. This is achieved with decreased energy circulation when compared to existing topologies with symmetric control and with fewer semiconductors than in those with phase-shift control. The topologies can be implemented in renewable, supercapacitor, battery, fuel cell, and DC microgrid applications. Steady-state operation and design aspects of the converters are presented and verified experimentally with 400 W prototypes
format Article
id doaj-art-e22cd04c9e77444c8442617dbe14a70f
institution Kabale University
issn 2255-9159
language English
publishDate 2018-07-01
publisher Riga Technical University Press
record_format Article
series Electrical, Control and Communication Engineering
spelling doaj-art-e22cd04c9e77444c8442617dbe14a70f2025-01-02T16:35:58ZengRiga Technical University PressElectrical, Control and Communication Engineering2255-91592018-07-0114151110.2478/ecce-2018-0001ecce-2018-0001Asymmetric snubberless current-fed full-bridge isolated DC-DC convertersKosenko Roman0Blinov Andrei1Vinnikov Dmitri2Chub Andrii3Student Member, IEEE, Chernihiv State University of Technology,Chernihiv, UkraineMember, IEEE, Tallinn University of Technology,Tallinn, EstoniaSenior Member, IEEE, Tallinn University of Technology,Tallinn, EstoniaMember, IEEE, Chernihiv State Technological University,Chernihiv, UkraineThis paper presents two isolated current-fed fullbridge DC-DC converters that can be used to interface a lower voltage source into a DC bus of higher voltage. The first topology uses a resonant circuit to force current redistribution between low-voltage-side transistors and a passive rectifier. The second topology utilizes an active rectifier with secondary modulation to achieve the same goal. The resonant circuit can be formed by using transformer leakage inductance and the parasitic capacitances of the switches. The converters feature soft switching of semiconductors over a wide range of operating conditions. This is achieved with decreased energy circulation when compared to existing topologies with symmetric control and with fewer semiconductors than in those with phase-shift control. The topologies can be implemented in renewable, supercapacitor, battery, fuel cell, and DC microgrid applications. Steady-state operation and design aspects of the converters are presented and verified experimentally with 400 W prototypeshttps://doi.org/10.2478/ecce-2018-0001dc-dc power converterssoft switchingzerocurrent switchingzero-voltage switching
spellingShingle Kosenko Roman
Blinov Andrei
Vinnikov Dmitri
Chub Andrii
Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
Electrical, Control and Communication Engineering
dc-dc power converters
soft switching
zerocurrent switching
zero-voltage switching
title Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
title_full Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
title_fullStr Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
title_full_unstemmed Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
title_short Asymmetric snubberless current-fed full-bridge isolated DC-DC converters
title_sort asymmetric snubberless current fed full bridge isolated dc dc converters
topic dc-dc power converters
soft switching
zerocurrent switching
zero-voltage switching
url https://doi.org/10.2478/ecce-2018-0001
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AT blinovandrei asymmetricsnubberlesscurrentfedfullbridgeisolateddcdcconverters
AT vinnikovdmitri asymmetricsnubberlesscurrentfedfullbridgeisolateddcdcconverters
AT chubandrii asymmetricsnubberlesscurrentfedfullbridgeisolateddcdcconverters