Modeling and Analysis of the Bendable Transformer

Godwin Kwun Yuan Ho; Cheng Zhang; Bryan M.H. Pong; S.Y. Ron Hui

doi:10.1109/TPEL.2015.2500606

Modeling and Analysis of the Bendable Transformer

Godwin Kwun Yuan Ho, Cheng Zhang, Bryan M.H. Pong, S.Y. Ron Hui

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

24 Citations (Scopus)

Abstract

This paper presents a study of a bendable transformer for wearable electronics. Printed on a thin and bendable film, this transformer is bendable to wrap around body limbs such as the forearm. A model using a partial equivalent circuit theory has been developed to analyze the characteristic of an inductor and a bendable transformer. The mutual inductance and self-inductance for the bendable transformer over a range of bent curvatures have been calculated based on the model and compared favorably with measurements. Simulation and experimental results of applying the bendable inductor and transformer in dc-dc converters as a 5-V 500-mA power supply are included to confirm the usefulness of the transformer and the validity of the model. © 2015 IEEE.

Original language	English
Article number	7328745
Pages (from-to)	6450-6460
Journal	IEEE Transactions on Power Electronics
Volume	31
Issue number	9
DOIs	https://doi.org/10.1109/TPEL.2015.2500606
Publication status	Published - 1 Sept 2016
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

buck converter
flexible transformer
LLC resonant converter
wearable electronics

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abstract = "This paper presents a study of a bendable transformer for wearable electronics. Printed on a thin and bendable film, this transformer is bendable to wrap around body limbs such as the forearm. A model using a partial equivalent circuit theory has been developed to analyze the characteristic of an inductor and a bendable transformer. The mutual inductance and self-inductance for the bendable transformer over a range of bent curvatures have been calculated based on the model and compared favorably with measurements. Simulation and experimental results of applying the bendable inductor and transformer in dc-dc converters as a 5-V 500-mA power supply are included to confirm the usefulness of the transformer and the validity of the model. {\textcopyright} 2015 IEEE.",

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AU - Hui, S.Y. Ron

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N2 - This paper presents a study of a bendable transformer for wearable electronics. Printed on a thin and bendable film, this transformer is bendable to wrap around body limbs such as the forearm. A model using a partial equivalent circuit theory has been developed to analyze the characteristic of an inductor and a bendable transformer. The mutual inductance and self-inductance for the bendable transformer over a range of bent curvatures have been calculated based on the model and compared favorably with measurements. Simulation and experimental results of applying the bendable inductor and transformer in dc-dc converters as a 5-V 500-mA power supply are included to confirm the usefulness of the transformer and the validity of the model. © 2015 IEEE.

AB - This paper presents a study of a bendable transformer for wearable electronics. Printed on a thin and bendable film, this transformer is bendable to wrap around body limbs such as the forearm. A model using a partial equivalent circuit theory has been developed to analyze the characteristic of an inductor and a bendable transformer. The mutual inductance and self-inductance for the bendable transformer over a range of bent curvatures have been calculated based on the model and compared favorably with measurements. Simulation and experimental results of applying the bendable inductor and transformer in dc-dc converters as a 5-V 500-mA power supply are included to confirm the usefulness of the transformer and the validity of the model. © 2015 IEEE.

KW - buck converter

KW - flexible transformer

KW - LLC resonant converter

KW - wearable electronics

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M3 - RGC 21 - Publication in refereed journal

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

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ER -

Modeling and Analysis of the Bendable Transformer

Abstract

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Research Keywords

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