Pulse Frequency Modulation of 3D Wireless Power Transfer for Capsule Endoscopy

Zhang, H; Liu, W; Li, Z; Lee, CK

Pulse Frequency Modulation of 3D Wireless Power Transfer for Capsule Endoscopy

Zhang, H Liu, W Li, Z Lee, CK

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Publisher:: Institute of Electrical and Electronics Engineers (IEEE)
Publication Type:: Journal Article
Citation:: IEEE Transactions on Industrial Electronics, 2024, PP, (99), pp. 1-10
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Zhang, H
dc.contributor.author	Liu, W
dc.contributor.author	Li, Z
dc.contributor.author	Lee, CK
dc.date.accessioned	2024-09-13T03:58:38Z
dc.date.available	2024-09-13T03:58:38Z
dc.date.issued	2024-01-01
dc.identifier.citation	IEEE Transactions on Industrial Electronics, 2024, PP, (99), pp. 1-10
dc.identifier.issn	0278-0046
dc.identifier.issn	1557-9948
dc.identifier.uri	http://hdl.handle.net/10453/180810
dc.description.abstract	In this article, a new attempt of utilizing pulse frequency modulation (PFM) control method to transfer power wirelessly to a pill-camera is presented. Experimental results confirm that the PFM control method surpassed the conventional phase shift control (PSC) method in terms of power loss reduction in both power converters and magnetic couplers. A 33.3% reduction in power loss and 55% gain in the overall system efficiency are recorded at maximum transmission power in a full-scale and fully functional engineering prototype. This significant improvement paves the way for the future development of wireless charging systems for humans, particularly when considering battery life. The target devices cover various health sensors, medical devices, biology, and industry applications. This article provides a complete study of proposed PFM method and comparison with conventional PSC method. The design parameters and fabrication of the engineering prototype are presented including a three-dimensional transmitting coil (3DTC) system and a one-dimensional receiving coil. The attitude information of the pill-camera is wirelessly transmitted to the controller to manipulate the magnitude and phase angle of the transmitter currents. System performance with the pill-camera in different orientations in 3DTC is measured. The advantage of using proposed control method is experimentally demonstrated and confirmed.
dc.language	en
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation.ispartof	IEEE Transactions on Industrial Electronics
dc.relation.isbasedon	10.1109/TIE.2024.3404150
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	08 Information and Computing Sciences, 09 Engineering
dc.subject.classification	Electrical & Electronic Engineering
dc.subject.classification	40 Engineering
dc.subject.classification	46 Information and computing sciences
dc.title	Pulse Frequency Modulation of 3D Wireless Power Transfer for Capsule Endoscopy
dc.type	Journal Article
utslib.citation.volume	PP
utslib.for	08 Information and Computing Sciences
utslib.for	09 Engineering
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	in_progress	*
dc.date.updated	2024-09-13T03:58:36Z
pubs.issue	99
pubs.publication-status	Published
pubs.volume	PP
utslib.citation.issue	99

Abstract:

In this article, a new attempt of utilizing pulse frequency modulation (PFM) control method to transfer power wirelessly to a pill-camera is presented. Experimental results confirm that the PFM control method surpassed the conventional phase shift control (PSC) method in terms of power loss reduction in both power converters and magnetic couplers. A 33.3% reduction in power loss and 55% gain in the overall system efficiency are recorded at maximum transmission power in a full-scale and fully functional engineering prototype. This significant improvement paves the way for the future development of wireless charging systems for humans, particularly when considering battery life. The target devices cover various health sensors, medical devices, biology, and industry applications. This article provides a complete study of proposed PFM method and comparison with conventional PSC method. The design parameters and fabrication of the engineering prototype are presented including a three-dimensional transmitting coil (3DTC) system and a one-dimensional receiving coil. The attitude information of the pill-camera is wirelessly transmitted to the controller to manipulate the magnitude and phase angle of the transmitter currents. System performance with the pill-camera in different orientations in 3DTC is measured. The advantage of using proposed control method is experimentally demonstrated and confirmed.

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http://hdl.handle.net/10453/180810