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• Zaslona, J
• Michalski, J
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Actuators 2012, 1(1), 12-20; doi:10.3390/act1010012

Article

Square Wave Driver for Piezoceramic Actuators

Slawomir Jakiela, Jan Zaslona and Jacek A. Michalski*

Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

* Author to whom correspondence should be addressed.

Received: 17 May 2012; in revised form: 27 June 2012 / Accepted: 28 June 2012 / Published: 6 July 2012

Download PDF Full-Text [1329 KB, uploaded 6 July 2012 11:50 CEST]

Abstract: We present the circuit and performance of a square wave driver and power supply for piezoceramic actuators characterized by large capacitance, up to 3 μF. Capacitance of piezoceramic element is the key factor that limits the use of powerful actuators operating at high frequencies (kHz). It is thus important to build a driver that allows use of a possible wide set of actuators in the widest range of frequencies appropriate for the piezoelement. The driver that we report uses the properties of non-inductive resistors that allow for operation at high frequencies. Our report details the design, construction, tests and limitations of the device and its application to the control of a microfluidic valve.

Keywords: piezoceramic actuator; piezoceramic capacitance; square wave driver; microfluidic valve

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