Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC

This paper proposes a single-module Active-Clamp Forward-Flyback (ACFF) converter for the next-generation low-voltage DC-DC converter (LDC) ensuring 4kW output power. The proposed converter employs an integrated planar transformer for applications requiring wide input voltage and high output current...

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Main Authors: Gyeong-Hyun Kwon, Dong-In Lee, Seong-Wook Jeong, Han-Shin Youn
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10776992/
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author Gyeong-Hyun Kwon
Dong-In Lee
Seong-Wook Jeong
Han-Shin Youn
author_facet Gyeong-Hyun Kwon
Dong-In Lee
Seong-Wook Jeong
Han-Shin Youn
author_sort Gyeong-Hyun Kwon
collection DOAJ
description This paper proposes a single-module Active-Clamp Forward-Flyback (ACFF) converter for the next-generation low-voltage DC-DC converter (LDC) ensuring 4kW output power. The proposed converter employs an integrated planar transformer for applications requiring wide input voltage and high output current. Previously, to meet the 4kW output specification, two 2kW LDC single modules were connected in series-parallel, resulting in a total of four cores functioning as transformers and output inductors. The core of the proposed converter consists of one core functioning as a transformer and two cores functioning as output inductors, resulting in higher power density and cost competitiveness compared to the conventional 4kW LDC modules. Additionally, integrating the cores from four to three offers the advantage of reduced magnetic core losses. In conclusion, the proposed converter is suitable for high-power LDC applications exceeding 3kW.
format Article
id doaj-art-ad7ac1cfd8dd47a0a3914851a2d7a1f5
institution Kabale University
issn 2169-3536
language English
publishDate 2025-01-01
publisher IEEE
record_format Article
series IEEE Access
spelling doaj-art-ad7ac1cfd8dd47a0a3914851a2d7a1f52025-01-07T00:02:19ZengIEEEIEEE Access2169-35362025-01-01132449246210.1109/ACCESS.2024.351149510776992Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDCGyeong-Hyun Kwon0https://orcid.org/0009-0003-1363-0634Dong-In Lee1Seong-Wook Jeong2Han-Shin Youn3https://orcid.org/0000-0002-7924-5136Department of Electrical Engineering, Incheon National University, Incheon, South KoreaDepartment of Electrical Engineering, Incheon National University, Incheon, South KoreaDepartment of Electrical Engineering, Incheon National University, Incheon, South KoreaDepartment of Electrical Engineering, Incheon National University, Incheon, South KoreaThis paper proposes a single-module Active-Clamp Forward-Flyback (ACFF) converter for the next-generation low-voltage DC-DC converter (LDC) ensuring 4kW output power. The proposed converter employs an integrated planar transformer for applications requiring wide input voltage and high output current. Previously, to meet the 4kW output specification, two 2kW LDC single modules were connected in series-parallel, resulting in a total of four cores functioning as transformers and output inductors. The core of the proposed converter consists of one core functioning as a transformer and two cores functioning as output inductors, resulting in higher power density and cost competitiveness compared to the conventional 4kW LDC modules. Additionally, integrating the cores from four to three offers the advantage of reduced magnetic core losses. In conclusion, the proposed converter is suitable for high-power LDC applications exceeding 3kW.https://ieeexplore.ieee.org/document/10776992/Electric vehicles (EVs)low-voltage dc-dc converter (LDC)active-clamp forward (ACF) converterintegrated transformerplanar transformer
spellingShingle Gyeong-Hyun Kwon
Dong-In Lee
Seong-Wook Jeong
Han-Shin Youn
Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC
IEEE Access
Electric vehicles (EVs)
low-voltage dc-dc converter (LDC)
active-clamp forward (ACF) converter
integrated transformer
planar transformer
title Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC
title_full Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC
title_fullStr Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC
title_full_unstemmed Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC
title_short Next-Generation Active-Clamp Forward-Flyback Converter With Integrated Planar Transformer for 4 kW LDC
title_sort next generation active clamp forward flyback converter with integrated planar transformer for 4 kw ldc
topic Electric vehicles (EVs)
low-voltage dc-dc converter (LDC)
active-clamp forward (ACF) converter
integrated transformer
planar transformer
url https://ieeexplore.ieee.org/document/10776992/
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AT donginlee nextgenerationactiveclampforwardflybackconverterwithintegratedplanartransformerfor4kwldc
AT seongwookjeong nextgenerationactiveclampforwardflybackconverterwithintegratedplanartransformerfor4kwldc
AT hanshinyoun nextgenerationactiveclampforwardflybackconverterwithintegratedplanartransformerfor4kwldc