Thin film micro-transformers for future power conversion

Terence O'Donnell; Ningning Wang; Magali Brunet; Saibal Roy; Andrew Connell; John Power; Cian O'Mathuna; Paul McCloskey

doi:10.1109/APEC.2004.1295935

Thin film micro-transformers for future power conversion

Terence O'Donnell
, Ningning Wang
, Magali Brunet
, Saibal Roy
, Andrew Connell
, John Power
, Cian O'Mathuna
, Paul McCloskey

Research output: Contribution to conference › Paper › peer-review

Abstract

This paper presents an investigation into the use of micro-fabricated transformers for future power conversion in the 5-10 MHz frequency range. The structure of the micro-transformers is described and an analytical model is used to optimize the transformer for maximum efficiency. The optimized devices are based on improved fabrication processes which give 80μm thick copper conductors and a two layer laminated magnetic core. The optimization suggests that an efficiency of 82 % at an output power of 3.5W can be achieved. Initial small signal results are presented for micro-transformers fabricated using the improved processes. The estimated efficiency of the fabricated microtransofmer based on these results is 78%.

Original language	English
Pages	939-944
Number of pages	6
DOIs	https://doi.org/10.1109/APEC.2004.1295935
Publication status	Published - 2004
Event	19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004 - Anaheim, CA., United States Duration: 22 Feb 2004 → 26 Feb 2004

Conference

Conference	19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004
Country/Territory	United States
City	Anaheim, CA.
Period	22/02/04 → 26/02/04

UN SDGs

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

SDG 9 Industry, Innovation, and Infrastructure

Keywords

Microfabrication
Optimisation
Power conversion
Transformers

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10.1109/APEC.2004.1295935

Cite this

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title = "Thin film micro-transformers for future power conversion",

abstract = "This paper presents an investigation into the use of micro-fabricated transformers for future power conversion in the 5-10 MHz frequency range. The structure of the micro-transformers is described and an analytical model is used to optimize the transformer for maximum efficiency. The optimized devices are based on improved fabrication processes which give 80μm thick copper conductors and a two layer laminated magnetic core. The optimization suggests that an efficiency of 82 \% at an output power of 3.5W can be achieved. Initial small signal results are presented for micro-transformers fabricated using the improved processes. The estimated efficiency of the fabricated microtransofmer based on these results is 78\%.",

keywords = "Microfabrication, Optimisation, Power conversion, Transformers",

author = "Terence O'Donnell and Ningning Wang and Magali Brunet and Saibal Roy and Andrew Connell and John Power and Cian O'Mathuna and Paul McCloskey",

year = "2004",

doi = "10.1109/APEC.2004.1295935",

language = "English",

pages = "939--944",

note = "19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004 ; Conference date: 22-02-2004 Through 26-02-2004",

}

TY - CONF

T1 - Thin film micro-transformers for future power conversion

AU - O'Donnell, Terence

AU - Wang, Ningning

AU - Brunet, Magali

AU - Roy, Saibal

AU - Connell, Andrew

AU - Power, John

AU - O'Mathuna, Cian

AU - McCloskey, Paul

PY - 2004

Y1 - 2004

N2 - This paper presents an investigation into the use of micro-fabricated transformers for future power conversion in the 5-10 MHz frequency range. The structure of the micro-transformers is described and an analytical model is used to optimize the transformer for maximum efficiency. The optimized devices are based on improved fabrication processes which give 80μm thick copper conductors and a two layer laminated magnetic core. The optimization suggests that an efficiency of 82 % at an output power of 3.5W can be achieved. Initial small signal results are presented for micro-transformers fabricated using the improved processes. The estimated efficiency of the fabricated microtransofmer based on these results is 78%.

AB - This paper presents an investigation into the use of micro-fabricated transformers for future power conversion in the 5-10 MHz frequency range. The structure of the micro-transformers is described and an analytical model is used to optimize the transformer for maximum efficiency. The optimized devices are based on improved fabrication processes which give 80μm thick copper conductors and a two layer laminated magnetic core. The optimization suggests that an efficiency of 82 % at an output power of 3.5W can be achieved. Initial small signal results are presented for micro-transformers fabricated using the improved processes. The estimated efficiency of the fabricated microtransofmer based on these results is 78%.

KW - Microfabrication

KW - Optimisation

KW - Power conversion

KW - Transformers

UR - https://www.scopus.com/pages/publications/2342591200

U2 - 10.1109/APEC.2004.1295935

DO - 10.1109/APEC.2004.1295935

M3 - Paper

AN - SCOPUS:2342591200

SP - 939

EP - 944

T2 - 19th Annual IEEE Applied Power Electronics Conference and Exposition - APEC 2004

Y2 - 22 February 2004 through 26 February 2004

ER -

Thin film micro-transformers for future power conversion

Abstract

Conference

UN SDGs

Keywords

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