Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer

This paper proposes analytical modeling and design of a 27.12 MHz single-switch dc-dc converter with galvanic isolation using a PCB transformer. The ODE-based analytical approach provides a more accurate circuit design by considering the high-order harmonics and non-ideal components such as the diod...

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Main Authors: Hyukjae Kwon, Junhyeong Lee, Juwon Lee, Jung-Ik Ha
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10035942/
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author Hyukjae Kwon
Junhyeong Lee
Juwon Lee
Jung-Ik Ha
author_facet Hyukjae Kwon
Junhyeong Lee
Juwon Lee
Jung-Ik Ha
author_sort Hyukjae Kwon
collection DOAJ
description This paper proposes analytical modeling and design of a 27.12 MHz single-switch dc-dc converter with galvanic isolation using a PCB transformer. The ODE-based analytical approach provides a more accurate circuit design by considering the high-order harmonics and non-ideal components such as the diode capacitances. The proposed dimensionless mathematical model simplifies the design of the desired circuit model and requires less tuning procedure. In addition, the effective analytical model offers the design curves to obtain the optimized circuit parameters at any duty ratio. Meanwhile, the multilayer planar PCB transformer is designed to achieve the isolation and high power density for the high-frequency dc-dc converter. Based on Neumann’s formula, the analytical model of the PCB transformer is proposed to calculate the inductances for the spiral structure accurately in the high-frequency conditions. As a result, the computational burden for calculating the coil inductances is alleviated using the proposed method. The simulation and experimental results using a 3W converter prototype verify the effectiveness and feasibility of the analytical modeling and design of the proposed converter.
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spelling doaj.art-c65483ea47894524804daa59e5263ca32023-02-15T00:00:20ZengIEEEIEEE Access2169-35362023-01-0111127421275410.1109/ACCESS.2023.324201010035942Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB TransformerHyukjae Kwon0Junhyeong Lee1Juwon Lee2https://orcid.org/0000-0001-9926-8821Jung-Ik Ha3https://orcid.org/0000-0002-5411-1414Department of Electrical and Computer Engineering, Seoul National University, Seoul, Republic of KoreaDepartment of Electrical and Computer Engineering, Seoul National University, Seoul, Republic of KoreaDepartment of Electrical and Computer Engineering, Seoul National University, Seoul, Republic of KoreaDepartment of Electrical and Computer Engineering, Seoul National University, Seoul, Republic of KoreaThis paper proposes analytical modeling and design of a 27.12 MHz single-switch dc-dc converter with galvanic isolation using a PCB transformer. The ODE-based analytical approach provides a more accurate circuit design by considering the high-order harmonics and non-ideal components such as the diode capacitances. The proposed dimensionless mathematical model simplifies the design of the desired circuit model and requires less tuning procedure. In addition, the effective analytical model offers the design curves to obtain the optimized circuit parameters at any duty ratio. Meanwhile, the multilayer planar PCB transformer is designed to achieve the isolation and high power density for the high-frequency dc-dc converter. Based on Neumann’s formula, the analytical model of the PCB transformer is proposed to calculate the inductances for the spiral structure accurately in the high-frequency conditions. As a result, the computational burden for calculating the coil inductances is alleviated using the proposed method. The simulation and experimental results using a 3W converter prototype verify the effectiveness and feasibility of the analytical modeling and design of the proposed converter.https://ieeexplore.ieee.org/document/10035942/Analytical modelhigh-frequencyplanar PCB transformersingle-switch DC-DC convertersoft-switching
spellingShingle Hyukjae Kwon
Junhyeong Lee
Juwon Lee
Jung-Ik Ha
Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer
IEEE Access
Analytical model
high-frequency
planar PCB transformer
single-switch DC-DC converter
soft-switching
title Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer
title_full Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer
title_fullStr Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer
title_full_unstemmed Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer
title_short Analytical Modeling and Design of 27.12 MHz Single-Switch DC–DC Converter With PCB Transformer
title_sort analytical modeling and design of 27 12 mhz single switch dc x2013 dc converter with pcb transformer
topic Analytical model
high-frequency
planar PCB transformer
single-switch DC-DC converter
soft-switching
url https://ieeexplore.ieee.org/document/10035942/
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AT junhyeonglee analyticalmodelinganddesignof2712mhzsingleswitchdcx2013dcconverterwithpcbtransformer
AT juwonlee analyticalmodelinganddesignof2712mhzsingleswitchdcx2013dcconverterwithpcbtransformer
AT jungikha analyticalmodelinganddesignof2712mhzsingleswitchdcx2013dcconverterwithpcbtransformer