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Vol. 163, Issue 1, January 2014, pp. 28-32

 

Bullet

 

Design and Research of Piezoelectric Ceramics Drive Power
 

Guang Ya LIU, Guang Yu XU

Electronic Engineering, Hubei University of Technology, Wuhan, 430068, Hubei Province, China

E-mail: whltxz@aliyun.com, shaoyu817@163.com

 

Received: 11 December 2013 /Accepted: 9 January 2014 /Published: 31 January 2014

Digital Sensors and Sensor Sysstems

 

Abstract: Piezoelectric amplifier is a very important part of the piezoelectric actuator. It does not only require high positioning accuracy, but also high frequency response. This paper designs the error amplifier drive power consisting of high-voltage op amp and discrete components, consisting of an error-amplified circuit, a power amplifier circuit, a feedback network and a discharge circuit. A compensation technique based on feedback zero compensation is proposed and it increases the frequency bandwidth and dynamic characteristics of the PZT power effectively. Through the power of the theoretical analysis and Multisim software simulation, the power supply has a good drive capability.

 

Keywords: PZT, Driver power, Power amplifier, Simulation.

 

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