Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers

Sergio Perez Pesca; Diego Bernal Cobaleda; Camilo Suarez; Wilmar Martinez; Rafael Diez

doi:10.1109/ANDESCON56260.2022.9989996

Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers

Sergio Perez Pesca, Diego Bernal Cobaleda, Camilo Suarez, Wilmar Martinez, Rafael Diez

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

5 Scopus citations

Abstract

One of the most important applications of power converters nowadays are Battery chargers in which the gain of the converter requires a wide range and high efficiency, the LLC resonant converter has become one of the most used topologies in this area. The most used approach for varying the output voltage is by changing its switching frequency. However, when the applications require wide variations of the output voltage it is necessary to perform wide frequency variations. This paper compares two methods to achieve wide voltage variations, the first one the previously mentioned technique of increasing the frequency and the second one the implementation of variable magnetics. The trade-offs of both techniques are presented and simulated.

Original language	English
Title of host publication	2022 IEEE ANDESCON
Subtitle of host publication	Technology and Innovation for Andean Industry, ANDESCON 2022
Editors	Mariela Cerrada Lozada, Paul Sanmartiin Mendoza
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781665488549
DOIs	https://doi.org/10.1109/ANDESCON56260.2022.9989996
State	Published - 2022
Event	11th IEEE Conference of the Andean Council, ANDESCON 2022 - Barranquilla, Colombia Duration: 16 Nov 2022 → 19 Nov 2022

Publication series

Name	2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022

Conference

Conference	11th IEEE Conference of the Andean Council, ANDESCON 2022
Country/Territory	Colombia
City	Barranquilla
Period	16/11/22 → 19/11/22

Keywords

DC-DC resonant converter
LLC
Variable transformer
wide voltage variation

Access to Document

10.1109/ANDESCON56260.2022.9989996

Cite this

Pesca, S. P., Cobaleda, D. B., Suarez, C., Martinez, W., & Diez, R. (2022). Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers. In M. C. Lozada, & P. S. Mendoza (Eds.), 2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022 (2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ANDESCON56260.2022.9989996

Pesca, Sergio Perez ; Cobaleda, Diego Bernal ; Suarez, Camilo et al. / Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers. 2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022. editor / Mariela Cerrada Lozada ; Paul Sanmartiin Mendoza. Institute of Electrical and Electronics Engineers Inc., 2022. (2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022).

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title = "Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers",

abstract = "One of the most important applications of power converters nowadays are Battery chargers in which the gain of the converter requires a wide range and high efficiency, the LLC resonant converter has become one of the most used topologies in this area. The most used approach for varying the output voltage is by changing its switching frequency. However, when the applications require wide variations of the output voltage it is necessary to perform wide frequency variations. This paper compares two methods to achieve wide voltage variations, the first one the previously mentioned technique of increasing the frequency and the second one the implementation of variable magnetics. The trade-offs of both techniques are presented and simulated.",

keywords = "DC-DC resonant converter, LLC, Variable transformer, wide voltage variation",

author = "Pesca, {Sergio Perez} and Cobaleda, {Diego Bernal} and Camilo Suarez and Wilmar Martinez and Rafael Diez",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE. ; 11th IEEE Conference of the Andean Council, ANDESCON 2022 ; Conference date: 16-11-2022 Through 19-11-2022",

year = "2022",

doi = "10.1109/ANDESCON56260.2022.9989996",

language = "English",

series = "2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Pesca, SP, Cobaleda, DB, Suarez, C, Martinez, W & Diez, R 2022, Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers. in MC Lozada & PS Mendoza (eds), 2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022. 2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022, Institute of Electrical and Electronics Engineers Inc., 11th IEEE Conference of the Andean Council, ANDESCON 2022, Barranquilla, Colombia, 16/11/22. https://doi.org/10.1109/ANDESCON56260.2022.9989996

Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers. / Pesca, Sergio Perez; Cobaleda, Diego Bernal; Suarez, Camilo et al.
2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022. ed. / Mariela Cerrada Lozada; Paul Sanmartiin Mendoza. Institute of Electrical and Electronics Engineers Inc., 2022. (2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Cobaleda, Diego Bernal

AU - Suarez, Camilo

AU - Martinez, Wilmar

AU - Diez, Rafael

PY - 2022

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N2 - One of the most important applications of power converters nowadays are Battery chargers in which the gain of the converter requires a wide range and high efficiency, the LLC resonant converter has become one of the most used topologies in this area. The most used approach for varying the output voltage is by changing its switching frequency. However, when the applications require wide variations of the output voltage it is necessary to perform wide frequency variations. This paper compares two methods to achieve wide voltage variations, the first one the previously mentioned technique of increasing the frequency and the second one the implementation of variable magnetics. The trade-offs of both techniques are presented and simulated.

AB - One of the most important applications of power converters nowadays are Battery chargers in which the gain of the converter requires a wide range and high efficiency, the LLC resonant converter has become one of the most used topologies in this area. The most used approach for varying the output voltage is by changing its switching frequency. However, when the applications require wide variations of the output voltage it is necessary to perform wide frequency variations. This paper compares two methods to achieve wide voltage variations, the first one the previously mentioned technique of increasing the frequency and the second one the implementation of variable magnetics. The trade-offs of both techniques are presented and simulated.

KW - DC-DC resonant converter

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KW - Variable transformer

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Pesca SP, Cobaleda DB, Suarez C, Martinez W, Diez R. Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers. In Lozada MC, Mendoza PS, editors, 2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022. Institute of Electrical and Electronics Engineers Inc. 2022. (2022 IEEE ANDESCON: Technology and Innovation for Andean Industry, ANDESCON 2022). doi: 10.1109/ANDESCON56260.2022.9989996

Analysis of Wide Voltage Variation in LLC Converters Using Variable Transformers

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