Carpenter, TM orcid.org/0000-0001-5676-1739, Cowell, DMJ orcid.org/0000-0003-0854-542X, Clegg, HR et al. (2 more authors) (2019) Gallium Nitride Based High-Power Switched HIFU Pulser with Real-Time Current/Voltage Monitoring. In: Proceedings of the 2019 IEEE International Ultrasonics Symposium (IUS). 2019 IEEE International Ultrasonics Symposium (IUS), 06-09 Oct 2019, Glasgow, United Kingdom,. IEEE , pp. 1959-1962. ISBN 978-1-7281-4597-6
Abstract
High-Intensity Focussed Ultrasound (HIFU) techniques make use of ultrasound transducers capable of delivering high powers to be delivered at high frequencies. Real-time monitoring of power delivered can avoid damage to the transducer and injury to patients due to overexposure. This paper demonstrates the real-time current and voltage monitoring capabilities of a new Gallium-Nitride (GaN) based switched mode transmit pulser developed for the University of Leeds High-Intensity Focussed Ultrasound Array Research Platform (HIFUARP) system, which uses a novel approach of using an Analog Front End (AFE) floating on the transmitter output to provide high bandwidth current measurement.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Transducers; Current measurement; Voltage measurement; Harmonic analysis; Gallium nitride; Switching circuits; Frequency-domain analysis |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) |
Funding Information: | Funder Grant number EPSRC Not Known EPSRC EP/S001069/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 05 Feb 2020 12:56 |
Last Modified: | 07 Feb 2020 15:51 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/ultsym.2019.8925869 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:156526 |