ACTUATOR 2014 Manuscript B3.1


Author: Hubert Borgmann
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Pages: 4
Language: English
Publication date: 30/11/-0001
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Manuscript B3.1 published in Conference Proceedings ACTUATOR 2014
Bi-Directional Piezoelectric Transformer Based Converter Driving Dielectric Electro Active Polymer Actuators

M.S. Rødgaard
Noliac A/S, Kvistgaard, Denmark

Abstract:
The dielectric electro active polymer (DEAP) technology has some unique features in terms of flexibility and dynamics, it has a high potential in various applications and in achieving a lower production cost. However it has the drawback of requiring a very high operational voltage, as well of having a relative low electromechanical coupling. In this paper a piezoelectric transformer based DEAP actuator driver is presented, which not only is capable of generating high voltages, but also incorporates a bi-directional power stage that will provide better system efficiency. Due to the low electromechanical coupling, only a small fraction of the supplied electrical energy is converted to mechanical energy. The bi-directional power stage enables the recovery of the electrical stored energy in the actuator, improving the system efficiency significantly. The main achievements of this work are the demonstration of bi-directional functionality and energy recovery, as well as an evaluation of the efficiency.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (www.actuator.de)
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (www.ithec.de)

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