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http://dx.doi.org/10.5370/KIEE.2012.61.12.1843

Study on High-Efficiency Driving of a Piezo Device Using Voltage Inversion Circuit  

Park, Han-Bin (Department of Aerospace Information Engineering, Konkuk University)
Park, Jin-Ho (Department of Digital/System Control Engineering, Hoseo University)
Hong, Sun-Ki (Department of Digital/System Control Engineering, Hoseo University)
Kang, Taesam (Department of Aerospace Information Engineering, Konkuk University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.61, no.12, 2012 , pp. 1843-1847 More about this Journal
Abstract
Piezo devices have large power density and simple structure. They can generate larger force than the conventional actuators. It has also wide bandwidth with fast response in a compact size. Thus the piezo devices are expected to be used widely in the future for small actuators with fast response time and large actuating force. However, the piezo actuators need high voltage with high driving current due to their large capacitive property. In this paper, we propose a simple method to drive piezo devices using voltage inversion circuit with coil inductance. Experiments with real circuit demonstrates that the proposed scheme can improve the energy efficiency very much.
Keywords
Piezo devices; Piezo device driving; Energy efficiency; Capacitive load driving;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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