Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment

Dibin Zhu; Neil J. Grabham; Lindsay Clare; Bernard H. Stark; Steve P. Beeby

doi:10.1109/WPT.2015.7140116

Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment

Dibin Zhu, Neil J. Grabham, Lindsay Clare, Bernard H. Stark, Steve P. Beeby

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

16 Citations (Scopus)

31 Downloads (Pure)

Abstract

Wireless power transfer (WPT) is an attractive approach for recharging wearable technologies and therefore textile implementations are of interest. Such textile WPT systems are inherently flexible and prone to misalignments of the inductively coupled coils which affects performance. This paper investigates two methods to reduce the effect of coil misalignment in inductive WPT in e-textile applications: a single large transmitter coil and a switched transmitter coil array. Transmission efficiency and maximum received power are determined for both methods, and compared against the baseline system that uses a single small transmitter coil. All coils used in this study were fabricated using automated stitching of PTFE insulated flexible wire onto a polyester/cotton textile. This fabrication method allows coils to be sewn directly to existing garments.

Original language	English
Title of host publication	2015 IEEE Wireless Power Transfer Conference (WPTC 2015)
Subtitle of host publication	Proceedings of a meeting held 13-15 May 2015, Boulder, Colorado, USA
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	4
ISBN (Electronic)	9781467374477
ISBN (Print)	9781467374484
DOIs	https://doi.org/10.1109/WPT.2015.7140116
Publication status	Published - Aug 2015
Event	2015 IEEE Wireless Power Transfer Conference, WPTC 2015 - Boulder, United States Duration: 13 May 2015 → 15 May 2015

Conference

Conference	2015 IEEE Wireless Power Transfer Conference, WPTC 2015
Country/Territory	United States
City	Boulder
Period	13/05/15 → 15/05/15

Structured keywords

Digital Health
SPHERE

Keywords

e-textiles
flexible coil
Misalignment
wireless power transfer

Access to Document

10.1109/WPT.2015.7140116

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Zhu, D., Grabham, N. J., Clare, L., Stark, B. H., & Beeby, S. P. (2015). Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment. In 2015 IEEE Wireless Power Transfer Conference (WPTC 2015): Proceedings of a meeting held 13-15 May 2015, Boulder, Colorado, USA [7140116] Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/WPT.2015.7140116

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title = "Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment",

abstract = "Wireless power transfer (WPT) is an attractive approach for recharging wearable technologies and therefore textile implementations are of interest. Such textile WPT systems are inherently flexible and prone to misalignments of the inductively coupled coils which affects performance. This paper investigates two methods to reduce the effect of coil misalignment in inductive WPT in e-textile applications: a single large transmitter coil and a switched transmitter coil array. Transmission efficiency and maximum received power are determined for both methods, and compared against the baseline system that uses a single small transmitter coil. All coils used in this study were fabricated using automated stitching of PTFE insulated flexible wire onto a polyester/cotton textile. This fabrication method allows coils to be sewn directly to existing garments.",

keywords = "e-textiles, flexible coil, Misalignment, wireless power transfer",

author = "Dibin Zhu and Grabham, {Neil J.} and Lindsay Clare and Stark, {Bernard H.} and Beeby, {Steve P.}",

year = "2015",

month = aug,

doi = "10.1109/WPT.2015.7140116",

language = "English",

isbn = "9781467374484",

booktitle = "2015 IEEE Wireless Power Transfer Conference (WPTC 2015)",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "2015 IEEE Wireless Power Transfer Conference, WPTC 2015 ; Conference date: 13-05-2015 Through 15-05-2015",

}

Zhu, D, Grabham, NJ, Clare, L , Stark, BH & Beeby, SP 2015, Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment. in 2015 IEEE Wireless Power Transfer Conference (WPTC 2015): Proceedings of a meeting held 13-15 May 2015, Boulder, Colorado, USA., 7140116, Institute of Electrical and Electronics Engineers (IEEE), 2015 IEEE Wireless Power Transfer Conference, WPTC 2015, Boulder, United States, 13/05/15. https://doi.org/10.1109/WPT.2015.7140116

Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment. / Zhu, Dibin; Grabham, Neil J.; Clare, Lindsay et al.
2015 IEEE Wireless Power Transfer Conference (WPTC 2015): Proceedings of a meeting held 13-15 May 2015, Boulder, Colorado, USA. Institute of Electrical and Electronics Engineers (IEEE), 2015. 7140116.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

TY - GEN

T1 - Inductive Power transfer in E-Textile Applications

T2 - 2015 IEEE Wireless Power Transfer Conference, WPTC 2015

AU - Zhu, Dibin

AU - Grabham, Neil J.

AU - Clare, Lindsay

AU - Stark, Bernard H.

AU - Beeby, Steve P.

PY - 2015/8

Y1 - 2015/8

N2 - Wireless power transfer (WPT) is an attractive approach for recharging wearable technologies and therefore textile implementations are of interest. Such textile WPT systems are inherently flexible and prone to misalignments of the inductively coupled coils which affects performance. This paper investigates two methods to reduce the effect of coil misalignment in inductive WPT in e-textile applications: a single large transmitter coil and a switched transmitter coil array. Transmission efficiency and maximum received power are determined for both methods, and compared against the baseline system that uses a single small transmitter coil. All coils used in this study were fabricated using automated stitching of PTFE insulated flexible wire onto a polyester/cotton textile. This fabrication method allows coils to be sewn directly to existing garments.

AB - Wireless power transfer (WPT) is an attractive approach for recharging wearable technologies and therefore textile implementations are of interest. Such textile WPT systems are inherently flexible and prone to misalignments of the inductively coupled coils which affects performance. This paper investigates two methods to reduce the effect of coil misalignment in inductive WPT in e-textile applications: a single large transmitter coil and a switched transmitter coil array. Transmission efficiency and maximum received power are determined for both methods, and compared against the baseline system that uses a single small transmitter coil. All coils used in this study were fabricated using automated stitching of PTFE insulated flexible wire onto a polyester/cotton textile. This fabrication method allows coils to be sewn directly to existing garments.

KW - e-textiles

KW - flexible coil

KW - Misalignment

KW - wireless power transfer

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U2 - 10.1109/WPT.2015.7140116

DO - 10.1109/WPT.2015.7140116

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84942863566

SN - 9781467374484

BT - 2015 IEEE Wireless Power Transfer Conference (WPTC 2015)

PB - Institute of Electrical and Electronics Engineers (IEEE)

Y2 - 13 May 2015 through 15 May 2015

ER -

Zhu D, Grabham NJ, Clare L , Stark BH, Beeby SP. Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment. In 2015 IEEE Wireless Power Transfer Conference (WPTC 2015): Proceedings of a meeting held 13-15 May 2015, Boulder, Colorado, USA. Institute of Electrical and Electronics Engineers (IEEE). 2015. 7140116 Epub 2015 Jul 2. doi: 10.1109/WPT.2015.7140116

Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment

Abstract

Conference

Structured keywords

Keywords

Access to Document

Handle.net

Other files and links

Fingerprint

SPHERE (EPSRC IRC)

Cite this

Inductive Power transfer in E-Textile Applications: Reducing the Effects of Coil Misalignment

Abstract

Conference

Structured keywords

Keywords

Access to Document

Handle.net

Other files and links

Fingerprint

Projects

SPHERE (EPSRC IRC)

Cite this