Tuned driving of piezoelectric resonators: Impedance matching

Jose L Pons*, J. F. Fernández, M. Villegas, P. Ochoa, R. Ceres, L. Calderón, E. Rocon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


For optimal operation of piezoelectric resonators, the electrical impedance of electronic drivers and the resonator itself must be matched. Lack of matching results in a non smooth transmission of electrical power between the drive and the load which, in turn, leads to heating and poor efficiency. The rest of properties of the driving voltage (frequency, amplitude and phase) are also affected by this mismatch. This paper presents the optimal design of power drivers for piezoelectric resonators. This approach is based on a first stage of electro-mechanical experimental characterization. This first step sets the basis for an impedance matching process. The approach has been experimentally validated on a well known piezoelectric resonator: the ultrasonic motor.

Original languageEnglish (US)
Pages (from-to)178-183
Number of pages6
JournalBoletin de la Sociedad Espanola de Ceramica y Vidrio
Issue number3
StatePublished - 2006


  • Impedance matching
  • Mechatronic design
  • Piezoelectric resonators
  • Ultrasonic motors

ASJC Scopus subject areas

  • Ceramics and Composites
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering

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