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access icon openaccess Automated design tools for piezoelectric transformer-based power supplies

This paper proposed a design approach for piezoelectric-transformer-based power supplies. Initially, an analytical approach is used to derive the Mason equivalent circuit parameters of a PT. This is coupled with a semi-automated procedure to decide the appropriate physical dimensions of the PT. The procedure is applied to a typical low-power power supply specification, whereupon a specific transformer is design, verified using COMSOL and used as a simulated converter in SPICE. Results show that the design can be successfully implemented while maintaining efficient zero-voltage switching operation.


    1. 1)
      • 5. Erturk, A., Inman, D.J.: ‘Piezoelectric energy harvesting’ (Wiley, Chichester, 2011), Appendix E.
    2. 2)
      • 3. Horsley, E.L.: ‘Modelling and analysis of radial mode piezoelectric transformers and inductor-less resonant power converters’. PhD Thesis, The University of Sheffield, Sheffield, 2011.
    3. 3)
      • 1. Woodward, D.I., Reaney, I.M., Eitel, R.E., et al: ‘Crystal and domain structure of the BiFeO3-PbTiO3 solid solution’, J. Appl. Phys., 2003, 94, (5), pp. 33133318.
    4. 4)
      • 2. Woodward, D.I., Knudsen, J., Reaney, I.M.: ‘Review of crystal and domain structures in the PbZrxTi1−xO3 solid solution’, Phys. Rev. B, 2005, 72, (10), 104110.
    5. 5)
      • 4. Foster, M.P., Davidson, J.N., Horsley, E.L., et al: ‘Critical design criterion for achieving zero voltage switching in inductorless half-bridge-driven piezoelectric-transformer-based power supplies’, IEEE Trans. Power Electron., 2016, 31, (7), pp. 50575066.

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