Investigation, development and verification of printed circuit board embedded air-core solenoid transformers

Jakob Døllner Mønster; Mickey Pierre Madsen; Jeppe Arnsdorf Pedersen; Arnold Knott

doi:10.1109/APEC.2015.7104343

Investigation, development and verification of printed circuit board embedded air-core solenoid transformers

Jakob Døllner Mønster, Mickey Pierre Madsen, Jeppe Arnsdorf Pedersen, Arnold Knott

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Abstract

A new printed circuit board embedded air-core transformer/coupled inductor is proposed and presented. The transformer is intended for use in power converter applications operating at very high frequency between 30 MHz to 300 MHz. The transformer is based on two or more solenoid structures in different configurations. The different configurations are compared for usefulness as a transformer solution, and an analytical model of the inductive parameters for the most suitable configuration is derived for design purpose. The analytical model is verified by comparing calculations and measurements of prototypes. The analytical model shows good agreement with the measured results. The model can predict the inductive parameters of the transformer with a deviation range of approximately 3 % to 22 %. Lastly a prototype is used in a VHF converter to achieve a rise of 2.2% points in efficiency.

Original language	English
Title of host publication	Proceedings of APEC 2015
Publisher	IEEE
Publication date	2015
Pages	133-139
ISBN (Print)	9781479967353
DOIs	https://doi.org/10.1109/APEC.2015.7104343
Publication status	Published - 2015
Event	30th Applied Power Electronics Conference and Exposition - Charlotte Convention Center, Charlotte, United States Duration: 15 Mar 2015 → 19 Mar 2015

Conference

Conference	30th Applied Power Electronics Conference and Exposition
Location	Charlotte Convention Center
Country/Territory	United States
City	Charlotte
Period	15/03/2015 → 19/03/2015

Keywords

Air-core
VHF
Transformer
PCB
Resonant converter

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10.1109/APEC.2015.7104343

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title = "Investigation, development and verification of printed circuit board embedded air-core solenoid transformers",

abstract = "A new printed circuit board embedded air-core transformer/coupled inductor is proposed and presented. The transformer is intended for use in power converter applications operating at very high frequency between 30 MHz to 300 MHz. The transformer is based on two or more solenoid structures in different configurations. The different configurations are compared for usefulness as a transformer solution, and an analytical model of the inductive parameters for the most suitable configuration is derived for design purpose. The analytical model is verified by comparing calculations and measurements of prototypes. The analytical model shows good agreement with the measured results. The model can predict the inductive parameters of the transformer with a deviation range of approximately 3 % to 22 %. Lastly a prototype is used in a VHF converter to achieve a rise of 2.2% points in efficiency.",

keywords = "Air-core, VHF, Transformer, PCB, Resonant converter",

author = "M{\o}nster, {Jakob D{\o}llner} and Madsen, {Mickey Pierre} and Pedersen, {Jeppe Arnsdorf} and Arnold Knott",

year = "2015",

doi = "10.1109/APEC.2015.7104343",

language = "English",

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pages = "133--139",

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AU - Madsen, Mickey Pierre

AU - Pedersen, Jeppe Arnsdorf

AU - Knott, Arnold

PY - 2015

Y1 - 2015

N2 - A new printed circuit board embedded air-core transformer/coupled inductor is proposed and presented. The transformer is intended for use in power converter applications operating at very high frequency between 30 MHz to 300 MHz. The transformer is based on two or more solenoid structures in different configurations. The different configurations are compared for usefulness as a transformer solution, and an analytical model of the inductive parameters for the most suitable configuration is derived for design purpose. The analytical model is verified by comparing calculations and measurements of prototypes. The analytical model shows good agreement with the measured results. The model can predict the inductive parameters of the transformer with a deviation range of approximately 3 % to 22 %. Lastly a prototype is used in a VHF converter to achieve a rise of 2.2% points in efficiency.

AB - A new printed circuit board embedded air-core transformer/coupled inductor is proposed and presented. The transformer is intended for use in power converter applications operating at very high frequency between 30 MHz to 300 MHz. The transformer is based on two or more solenoid structures in different configurations. The different configurations are compared for usefulness as a transformer solution, and an analytical model of the inductive parameters for the most suitable configuration is derived for design purpose. The analytical model is verified by comparing calculations and measurements of prototypes. The analytical model shows good agreement with the measured results. The model can predict the inductive parameters of the transformer with a deviation range of approximately 3 % to 22 %. Lastly a prototype is used in a VHF converter to achieve a rise of 2.2% points in efficiency.

KW - Air-core

KW - VHF

KW - Transformer

KW - PCB

KW - Resonant converter

U2 - 10.1109/APEC.2015.7104343

DO - 10.1109/APEC.2015.7104343

M3 - Article in proceedings

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EP - 139

BT - Proceedings of APEC 2015

PB - IEEE

T2 - 30th Applied Power Electronics Conference and Exposition

Y2 - 15 March 2015 through 19 March 2015

ER -

Investigation, development and verification of printed circuit board embedded air-core solenoid transformers

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