CURRENT CONTROL AMPLIFIER FOR PIEZOELECTRIC ACTUATOR IN PRECISION POSITIONING CONTROL

摘要：

Piezoelectric transducers are known to exhibit less hysterisis when driven with current or charge rather than voltage. Despite this advantage, such methods have found little practical application due to the poor low frequency response of present current and charge driver designs. In this paper, a current control piezoelectric amplifier is presented which can reduce hysteresis. Special circuits and a hybrid control algorithm realize the quick and precise positioning. Experimental results demonstrate that the amplifier can be used for dynamic and static applications. Low frequency bandwidths can be achieved.

关键词： Piezoelectric Actuator Current Amplifier Hybrid Control Hysteresis

作者: Changhai Ru

作者单位: Automation College, Harbin Engineering University, Harbin China 150001

会议类型: 国际会议

会议名称: 2007年微纳系统集成及其商业化应用国际学术会议(2007 International Conference & Exhibition on Integration and Commercialization of Micro and Nano-Systems)

会议地点: 海南三亚

会议语种:英文

在线出版日期: 2007-01-10（万方平台首次上网日期，不代表论文的发表时间）