Power enhancement of piezoelectric transformers for power supplies
Power enhancement of piezoelectric transformers for power supplies
- Author(s): M. Ekhtiari ; A.R. Steenstrup ; Zhe Zhang ; M.A.E. Andersen
- DOI: 10.1049/cp.2016.0378
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- Author(s): M. Ekhtiari ; A.R. Steenstrup ; Zhe Zhang ; M.A.E. Andersen Source: 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016), 2016 page ()
- Conference: 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)
- DOI: 10.1049/cp.2016.0378
- ISBN: 978-1-78561-188-9
- Location: Glasgow, UK
- Conference date: 19-21 April 2016
- Format: PDF
This paper studies power enhancement of piezoelectric transformers to be used in inductorless, half-bridge, piezoelecteric-based switch mode power supplies for driving a piezo actuator motor system in a high strength magnetic environment for magnetic resonance imaging and computed tomography applications. A new multi element-piezo transformer solution is proposed along with a dual mode piezo transformer, providing power scaling and potentially improving the internal heat-up of a high power piezo transformer system.
Inspec keywords: magnetic resonance imaging; transformers; piezoelectric motors; bridge circuits; computerised tomography; piezoelectric actuators; switched mode power supplies
Subjects: Power electronics, supply and supervisory circuits; Piezoelectric motors; Inductors and transformers; Piezoelectric devices
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