Abstract:
This article presents a novel high-frequency isolated dc–dc converter feasible for level 2 and level 3 electric vehicle (EV) chargers. It exhibits pulsewidth modulation c...Show MoreMetadata
Abstract:
This article presents a novel high-frequency isolated dc–dc converter feasible for level 2 and level 3 electric vehicle (EV) chargers. It exhibits pulsewidth modulation characteristics on high-frequency rectification semiconductors, enabling the use of low-voltage diodes. The steady-state analysis is derived in terms of the operating stages, voltage gain behavior, soft-switching regions, and loss mechanism. A laboratory prototype is designed with a rated power of 10 kW and dc output voltage ranging between 200 V and 920 V, aiming to validate the theoretical assumptions. Under nominal operating conditions, the maximum obtained efficiency is above 98% while presenting good performance across the entire operating range for EV chargers.
Published in: IEEE Transactions on Power Electronics ( Volume: 40, Issue: 7, July 2025)
Funding Agency:
Raimundo Nonato Moura de Oliveira, Instituto Federal do Ceará, Instituto Federal do Ceará Campus Limoeiro do Norte, Limoeiro do Norte, Ceará, Brazil
Raimundo Nonato Moura de Oliveira was born in Limoeiro do Norte, Ceará, Brazil, in 1978. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Ceará, Sobral, Brazil, in 2015 and from the UFC, Fortaleza, Brasil, in 2018, respectively.
He is currently a Professor with the Federal Institute of Ceará, Limoeiro do Norte, Brazil. His research interests include static power converters, r...Show More
Raimundo Nonato Moura de Oliveira was born in Limoeiro do Norte, Ceará, Brazil, in 1978. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Ceará, Sobral, Brazil, in 2015 and from the UFC, Fortaleza, Brasil, in 2018, respectively.
He is currently a Professor with the Federal Institute of Ceará, Limoeiro do Norte, Brazil. His research interests include static power converters, r...View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
José Willamy Medeiros de Araújo was born in Fortaleza-CE, Brazil, in 1988. He received the Ph.D. degree in electrical engineering from the Federal University of Ceará, Fortaleza, Brazil, in 2022.
He is a Researcher with the Group of Power Processing and Control, Federal University of Ceará, where he is currently working on vehicle chargers. His research interests include static power converters, soft commutation and renewa...Show More
José Willamy Medeiros de Araújo was born in Fortaleza-CE, Brazil, in 1988. He received the Ph.D. degree in electrical engineering from the Federal University of Ceará, Fortaleza, Brazil, in 2022.
He is a Researcher with the Group of Power Processing and Control, Federal University of Ceará, where he is currently working on vehicle chargers. His research interests include static power converters, soft commutation and renewa...View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
Luiz Henrique Silva Colado Barreto (Senior Member, IEEE) received the Ph.D. degree in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 2003.
He is currently a Full Professor with the Federal University of Ceará, which is the Head of the Department of Electrical Engineering. He is working in electrical engineering with emphasis in power electronic and has been an Academic Advisor of m...Show More
Luiz Henrique Silva Colado Barreto (Senior Member, IEEE) received the Ph.D. degree in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 2003.
He is currently a Full Professor with the Federal University of Ceará, which is the Head of the Department of Electrical Engineering. He is working in electrical engineering with emphasis in power electronic and has been an Academic Advisor of m...View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
Dalton de Araujo Honorio (Senior Member, IEEE) received the B.Sc., M.Sc. and Ph.D. degrees in electrical engineer from the Federal University of Ceará, Fortaleza, Brazil, in 2011, 2013 and 2018, respectively.
He did a sandwich Ph.D. period with Oak Ridge National Laboratory in 2015. He is currently an Adjunct Professor with the Federal University of Ceará, where he participates in research focused on power conditioners, be...Show More
Dalton de Araujo Honorio (Senior Member, IEEE) received the B.Sc., M.Sc. and Ph.D. degrees in electrical engineer from the Federal University of Ceará, Fortaleza, Brazil, in 2011, 2013 and 2018, respectively.
He did a sandwich Ph.D. period with Oak Ridge National Laboratory in 2015. He is currently an Adjunct Professor with the Federal University of Ceará, where he participates in research focused on power conditioners, be...View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
Demercil de Souza Oliveira (Senior Member, IEEE) received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 1999 and 2001, respectively, and the Ph.D. degree in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 2004.
Since 2005, he has been a Professor with the Federal University of Ceará, Fortaleza, Brazil. ...Show More
Demercil de Souza Oliveira (Senior Member, IEEE) received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 1999 and 2001, respectively, and the Ph.D. degree in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 2004.
Since 2005, he has been a Professor with the Federal University of Ceará, Fortaleza, Brazil. ...View more
Contents Raimundo Nonato Moura de Oliveira, Instituto Federal do Ceará, Instituto Federal do Ceará Campus Limoeiro do Norte, Limoeiro do Norte, Ceará, Brazil
Raimundo Nonato Moura de Oliveira was born in Limoeiro do Norte, Ceará, Brazil, in 1978. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Ceará, Sobral, Brazil, in 2015 and from the UFC, Fortaleza, Brasil, in 2018, respectively.
He is currently a Professor with the Federal Institute of Ceará, Limoeiro do Norte, Brazil. His research interests include static power converters, renewable energy applications, softcommutation, and solid-state transformers.
Raimundo Nonato Moura de Oliveira was born in Limoeiro do Norte, Ceará, Brazil, in 1978. He received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Ceará, Sobral, Brazil, in 2015 and from the UFC, Fortaleza, Brasil, in 2018, respectively.
He is currently a Professor with the Federal Institute of Ceará, Limoeiro do Norte, Brazil. His research interests include static power converters, renewable energy applications, softcommutation, and solid-state transformers.View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
José Willamy Medeiros de Araújo was born in Fortaleza-CE, Brazil, in 1988. He received the Ph.D. degree in electrical engineering from the Federal University of Ceará, Fortaleza, Brazil, in 2022.
He is a Researcher with the Group of Power Processing and Control, Federal University of Ceará, where he is currently working on vehicle chargers. His research interests include static power converters, soft commutation and renewable energy applications.
José Willamy Medeiros de Araújo was born in Fortaleza-CE, Brazil, in 1988. He received the Ph.D. degree in electrical engineering from the Federal University of Ceará, Fortaleza, Brazil, in 2022.
He is a Researcher with the Group of Power Processing and Control, Federal University of Ceará, where he is currently working on vehicle chargers. His research interests include static power converters, soft commutation and renewable energy applications.View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
Luiz Henrique Silva Colado Barreto (Senior Member, IEEE) received the Ph.D. degree in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 2003.
He is currently a Full Professor with the Federal University of Ceará, which is the Head of the Department of Electrical Engineering. He is working in electrical engineering with emphasis in power electronic and has been an Academic Advisor of masters and Ph.D. students in the Graduate Program in Electrical Engineering from UFC since 2003. He was the Coordinator of the Graduate Program in electrical engineering with the UFC, from 2009 to 2011. He was a Reviewer for the journals IEEE Transactions on Industrial Electronics, IEEE Transactions on Power Electronics, and IEEE Transactions on Industry application and the Journal of SOBRAEP. Was the Chair of 10th IAS/IEEE/INDUSCON held in 2012. In 2015, he was the Vice-Chair of the 1st IEEE/PELS SPEC/COBEP held in Fortaleza, Brazil. He was Brazilian Society of Power Electronics treasurer for two terms (from 2010 to 2011 and from 2021 to 2023). He is the IEEE/PELS Region 9 Membership Chair and a Member of the Brazilian Society of Power Electronics (SOBRAEP) and Power Electronics (IEEE / PELS). His field of research interest includes ZVS and ZCS techniques, structures of dc–dc converter control, power factor and harmonics, UPS systems and multilevel converters.
Luiz Henrique Silva Colado Barreto (Senior Member, IEEE) received the Ph.D. degree in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 2003.
He is currently a Full Professor with the Federal University of Ceará, which is the Head of the Department of Electrical Engineering. He is working in electrical engineering with emphasis in power electronic and has been an Academic Advisor of masters and Ph.D. students in the Graduate Program in Electrical Engineering from UFC since 2003. He was the Coordinator of the Graduate Program in electrical engineering with the UFC, from 2009 to 2011. He was a Reviewer for the journals IEEE Transactions on Industrial Electronics, IEEE Transactions on Power Electronics, and IEEE Transactions on Industry application and the Journal of SOBRAEP. Was the Chair of 10th IAS/IEEE/INDUSCON held in 2012. In 2015, he was the Vice-Chair of the 1st IEEE/PELS SPEC/COBEP held in Fortaleza, Brazil. He was Brazilian Society of Power Electronics treasurer for two terms (from 2010 to 2011 and from 2021 to 2023). He is the IEEE/PELS Region 9 Membership Chair and a Member of the Brazilian Society of Power Electronics (SOBRAEP) and Power Electronics (IEEE / PELS). His field of research interest includes ZVS and ZCS techniques, structures of dc–dc converter control, power factor and harmonics, UPS systems and multilevel converters.View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
Dalton de Araujo Honorio (Senior Member, IEEE) received the B.Sc., M.Sc. and Ph.D. degrees in electrical engineer from the Federal University of Ceará, Fortaleza, Brazil, in 2011, 2013 and 2018, respectively.
He did a sandwich Ph.D. period with Oak Ridge National Laboratory in 2015. He is currently an Adjunct Professor with the Federal University of Ceará, where he participates in research focused on power conditioners, being the Head of the Power Conditioners Laboratory and a Member of the Power Processing and Control Group. He has been a Member of the Brazilian Power Electronics Society (SOBRAEP) since 2011, and he served as its first Secretary during the biennium 2022–2023. He has been a Member of the IEEE Power Electronics Society since 2016, located in the Northeast Brazil Section, R-9. His research focuses on power electronics applications, specifically on high conversion ratio dc–dc converters, as well as cascaded multilevel converters and modular multilevel converters applied in solid-state transformers.
Dalton de Araujo Honorio (Senior Member, IEEE) received the B.Sc., M.Sc. and Ph.D. degrees in electrical engineer from the Federal University of Ceará, Fortaleza, Brazil, in 2011, 2013 and 2018, respectively.
He did a sandwich Ph.D. period with Oak Ridge National Laboratory in 2015. He is currently an Adjunct Professor with the Federal University of Ceará, where he participates in research focused on power conditioners, being the Head of the Power Conditioners Laboratory and a Member of the Power Processing and Control Group. He has been a Member of the Brazilian Power Electronics Society (SOBRAEP) since 2011, and he served as its first Secretary during the biennium 2022–2023. He has been a Member of the IEEE Power Electronics Society since 2016, located in the Northeast Brazil Section, R-9. His research focuses on power electronics applications, specifically on high conversion ratio dc–dc converters, as well as cascaded multilevel converters and modular multilevel converters applied in solid-state transformers.View more
Departamento de Engenharia Elétrica, Universidade Federal do Ceará, Fortaleza, Ceará, Brazil
Demercil de Souza Oliveira (Senior Member, IEEE) received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 1999 and 2001, respectively, and the Ph.D. degree in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 2004.
Since 2005, he has been a Professor with the Federal University of Ceará, Fortaleza, Brazil. His research interests include power converter topologies, soft switching techniques, three-phase dc–dc power conversion, solid-state transformers, and renewable energy applications.
Demercil de Souza Oliveira (Senior Member, IEEE) received the B.Sc. and M.Sc. degrees in electrical engineering from the Federal University of Uberlândia, Uberlândia, Brazil, in 1999 and 2001, respectively, and the Ph.D. degree in electrical engineering from the Federal University of Santa Catarina, Florianópolis, Brazil, in 2004.
Since 2005, he has been a Professor with the Federal University of Ceará, Fortaleza, Brazil. His research interests include power converter topologies, soft switching techniques, three-phase dc–dc power conversion, solid-state transformers, and renewable energy applications.View more