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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Wang, Ying
University of Twente
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2023Vital Signs Estimation Using a 26 GHz Multi-Beam Communication Testbed
- 2022Ostwald Ripening in an Oxide‐on‐Metal Systemcitations
- 2021Effect of Unit-Cell Size on the Barely Visible Impact Damage in Woven Compositescitations
- 2021Effect of Unit-Cell Size on the Barely Visible Impact Damage in Woven Compositescitations
- 2020Following the effect of braid architecture on performance and damage of carbon fibre/epoxy composite tubes during torsional straining
- 2020Damage evolution in braided composite tubes under torsion studied by in-situ X-ray computed tomographycitations
- 20187.6 Computed tomography of compositescitations
- 2018A finite element and experimental analysis of durability tested springscitations
- 2018Efficient and Selective Photocatalytic Oxidation of Benzylic Alcohols with Hybrid Organic-Inorganic Perovskite Materialscitations
- 2017X-ray computed tomography study of kink bands in unidirectional compositescitations
- 2015Time-lapse X-ray microtomographic imaging of compressive failure in carbon fibre-epoxy composites
- 2015A finite element analysis of composite T-joints used in wind turbine bladescitations
- 2011Power Converters for Power-Ultrasonic Transducers
- 2010Effect of the phenyl ring orientation in the polystyrene buffer layer on the performance of pentacene thin-film transistorscitations
- 2006Remarkably wide four-layer smectic phases in mixtures of liquid crystals and highly chiral dopantscitations
- 2004Association behavior between end-functionalized block copolymers PEO-PPO-PEO and poly(acrylic acid)citations
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document
Power Converters for Power-Ultrasonic Transducers
Abstract
High-performance power-converters in the form of single-tone class-D amplifiers are required to drive power-ultrasonic transducers in industrial applications. These must produce low-distortion, variable-frequency, and variable-amplitude sinusoidal currents to efficiently drive the piezoelectric cell and horn of transducers, and thereby vibrate materialprocessing stages. A resonant-tracking control strategy is generally used to efficiently couple and regulate output power delivery at a high-Q probe-system resonant mode. This paper reviews a number of power-converter control options suitable for such probe drivers, including quasi-squarewave (QS), naturally sampling pulse width modulation (PWM) and programmed PWM (PPWM). Typical output-waveform quality and the PSPICE models of the power-converter and piezoelectric transducer developed to assess and compare methods are presented.