Magnetic material selection for high power high frequency inductors in DC-DC converters

Marek S. Ryłko; Kelvin J. Hartnett; John G. Hayes; Michael G. Egan

doi:10.1109/APEC.2009.4802955

Magnetic material selection for high power high frequency inductors in DC-DC converters

Marek S. Ryłko
, Kelvin J. Hartnett
, John G. Hayes
, Michael G. Egan

School of Biological, Earth and Environmental Sciences

University College Cork

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

Abstract

Dc-dc converter size and efficiency are driving factors in industrial, aerospace and automotive applications. Thus, optimal component selection is essential for a compact design. The inductor often appears as the converter's largest component. This paper presents analytical and experimental comparisons of the magnetic materials used in a practical design. The investigation is concerned with magnetic material selection for a dc-dc power inductor in the medium (20 kHz) to high (150 kHz) frequency range and the low (1%) to high (220%) current ripple range. The materials under investigation are iron-based amorphous metal, silicon steel, nanocrystalline, ferrite, powdered iron and gap-less powder materials. A newly developed silicon steel material from JFE-Steel Co. is presented. A novel material comparison which includes thermal conductivity and saturation capability is proposed. The area product analysis for material comparison is presented for 10 kW dc-dc inductor design examples. The variation of core power loss with dc-bias is experimentally investigated for different materials. A 1.25 kW half-bridge dc-dc converter is used in experimental validation.

Original language	English
Title of host publication	24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009
Pages	2043-2049
Number of pages	7
DOIs	https://doi.org/10.1109/APEC.2009.4802955
Publication status	Published - 2009
Event	24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009 - Washington, DC, United States Duration: 15 Feb 2009 → 19 Feb 2009

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Conference

Conference	24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009
Country/Territory	United States
City	Washington, DC
Period	15/02/09 → 19/02/09

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Inductor size analysis
Magnetic materials

Access to Document

10.1109/APEC.2009.4802955

Cite this

Ryłko, M. S., Hartnett, K. J., Hayes, J. G., & Egan, M. G. (2009). Magnetic material selection for high power high frequency inductors in DC-DC converters. In 24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009 (pp. 2043-2049). Article 4802955 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC.2009.4802955

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title = "Magnetic material selection for high power high frequency inductors in DC-DC converters",

abstract = "Dc-dc converter size and efficiency are driving factors in industrial, aerospace and automotive applications. Thus, optimal component selection is essential for a compact design. The inductor often appears as the converter's largest component. This paper presents analytical and experimental comparisons of the magnetic materials used in a practical design. The investigation is concerned with magnetic material selection for a dc-dc power inductor in the medium (20 kHz) to high (150 kHz) frequency range and the low (1\%) to high (220\%) current ripple range. The materials under investigation are iron-based amorphous metal, silicon steel, nanocrystalline, ferrite, powdered iron and gap-less powder materials. A newly developed silicon steel material from JFE-Steel Co. is presented. A novel material comparison which includes thermal conductivity and saturation capability is proposed. The area product analysis for material comparison is presented for 10 kW dc-dc inductor design examples. The variation of core power loss with dc-bias is experimentally investigated for different materials. A 1.25 kW half-bridge dc-dc converter is used in experimental validation.",

keywords = "Inductor size analysis, Magnetic materials",

author = "Ry{\l}ko, \{Marek S.\} and Hartnett, \{Kelvin J.\} and Hayes, \{John G.\} and Egan, \{Michael G.\}",

year = "2009",

doi = "10.1109/APEC.2009.4802955",

language = "English",

isbn = "9781424428120",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

pages = "2043--2049",

booktitle = "24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009",

note = "24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009 ; Conference date: 15-02-2009 Through 19-02-2009",

}

Ryłko, MS, Hartnett, KJ, Hayes, JG & Egan, MG 2009, Magnetic material selection for high power high frequency inductors in DC-DC converters. in 24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009., 4802955, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, pp. 2043-2049, 24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009, Washington, DC, United States, 15/02/09. https://doi.org/10.1109/APEC.2009.4802955

Magnetic material selection for high power high frequency inductors in DC-DC converters. / Ryłko, Marek S.; Hartnett, Kelvin J.; Hayes, John G. et al.
24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009. 2009. p. 2043-2049 4802955 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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

TY - GEN

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AU - Ryłko, Marek S.

AU - Hartnett, Kelvin J.

AU - Hayes, John G.

AU - Egan, Michael G.

PY - 2009

Y1 - 2009

N2 - Dc-dc converter size and efficiency are driving factors in industrial, aerospace and automotive applications. Thus, optimal component selection is essential for a compact design. The inductor often appears as the converter's largest component. This paper presents analytical and experimental comparisons of the magnetic materials used in a practical design. The investigation is concerned with magnetic material selection for a dc-dc power inductor in the medium (20 kHz) to high (150 kHz) frequency range and the low (1%) to high (220%) current ripple range. The materials under investigation are iron-based amorphous metal, silicon steel, nanocrystalline, ferrite, powdered iron and gap-less powder materials. A newly developed silicon steel material from JFE-Steel Co. is presented. A novel material comparison which includes thermal conductivity and saturation capability is proposed. The area product analysis for material comparison is presented for 10 kW dc-dc inductor design examples. The variation of core power loss with dc-bias is experimentally investigated for different materials. A 1.25 kW half-bridge dc-dc converter is used in experimental validation.

AB - Dc-dc converter size and efficiency are driving factors in industrial, aerospace and automotive applications. Thus, optimal component selection is essential for a compact design. The inductor often appears as the converter's largest component. This paper presents analytical and experimental comparisons of the magnetic materials used in a practical design. The investigation is concerned with magnetic material selection for a dc-dc power inductor in the medium (20 kHz) to high (150 kHz) frequency range and the low (1%) to high (220%) current ripple range. The materials under investigation are iron-based amorphous metal, silicon steel, nanocrystalline, ferrite, powdered iron and gap-less powder materials. A newly developed silicon steel material from JFE-Steel Co. is presented. A novel material comparison which includes thermal conductivity and saturation capability is proposed. The area product analysis for material comparison is presented for 10 kW dc-dc inductor design examples. The variation of core power loss with dc-bias is experimentally investigated for different materials. A 1.25 kW half-bridge dc-dc converter is used in experimental validation.

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KW - Magnetic materials

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T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

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T2 - 24th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2009

Y2 - 15 February 2009 through 19 February 2009

ER -

Magnetic material selection for high power high frequency inductors in DC-DC converters

Abstract

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UN SDGs

Keywords

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