Bi-directional piezoelectric transformer based converter for high-voltage capacitive applications

  title={Bi-directional piezoelectric transformer based converter for high-voltage capacitive applications},
  author={Martin S. Rodgaard},
  journal={2015 IEEE Applied Power Electronics Conference and Exposition (APEC)},
A piezoelectric transformer based converter is presented in this paper, which not only is capable of generating high voltages, but also incorporates a bi-directional power stage. Applications of high capacitive loads, such as dielectric electro active polymers (DEAP) [1], often suffer from poor overall system efficiency, as only a small fraction of the supplied electrical energy is transferred to mechanical energy (<;10%). The bi-directional power stage enables the recovery of the electrical… CONTINUE READING


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