Square Wave Driver for Piezoceramic Actuators

Actuators

Slawomir Jakiela¹  Jan Zaslona¹ 

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

关键词: piezoceramic actuator;    piezoceramic capacitance;    square wave driver;    microfluidic valve;   

DOI  :  10.3390/act1010012

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.