Ingham, RH, James, R, Smith, PR et al. (2 more authors) (2013) Transducer excitation with switched-mode encoded signals for harmonic and amplitude control verified using the Leach model. In: IEEE International Ultrasonics Symposium, IUS. IEEE International Ultrasonics Symposium, IUS, 21-25 Jul 2013, Prague, Hungary. IEEE , 457 - 460. ISBN 9781467356862
Abstract
An excitation method to reduce harmonic content in the third harmonic was verified utilizing SPICE modeling. The SPICE model incorporated a MOSFET model and the Leach model to form a multi-level switch-mode pulser circuit. The pulser circuit was driven with a Harmonic Reduction PWM excitation sequence and a stepped excitation sequence with a fundamental frequency of 2 Mhz. An FFT of the excitation sequences was compared to verify the performance of the MOSFETs with the excitation sequences. It was found that at the third harmonic, the harmonic content was reduced by 22.2 dB.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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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) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 07 Jan 2015 11:03 |
Last Modified: | 19 Dec 2022 13:29 |
Published Version: | http://dx.doi.org/10.1109/ULTSYM.2013.0118 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/ULTSYM.2013.0118 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:81863 |