一种高稳定性压电驱动电源设计  

Design of Piezoelectric Driving Power Supply with High Stability

作　　者：张玉婷[1] 张文涛[1] 钱存 张紫杨 陈云 ZHANG Yuting;ZHANG Wentao;QIAN Cun;ZHANG Ziyang;CHEN Yun(Guangxi Key Laboratory of Optoelectronic Information Processing,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学广西光电信息处理重点实验室

出　　处：《压电与声光》2020年第1期104-107,共4页Piezoelectrics & Acoustooptics

基　　金：国家重点专项基金资助项目(2017ZX02101007-003);国家自然科学基金资助项目(61565004)

摘　　要：作为电压控制型器件,压电陶瓷驱动电源的稳定性受负载电容量变化的影响严重。针对负载等效电容在驱动电压变化下的动态特性,首次提出了一种基于容性负载的压电驱动电源。该电源采用RC前置滤波与电容超前反馈相结合,提高了系统稳定性与驱动电源的鲁棒性。分析结果表明,额定负载为1.5μF的驱动电源优化后在0~3μF内具有良好的动态性能,且输出电压精度达0.7 mV。As a voltage control device,the stability of piezoelectric ceramic drive power supply is seriously affected by the change of load capacitance.According to the dynamic characteristics of load equivalent capacitance under the change of driving voltage,a piezoelectric driving power supply based on capacitive load is proposed for the first time.The power supply combines RC pre-filtering and capacitive advanced feedback,which can improve the stability and the robustness of the power supply.The analysis results show that the optimized driving power supply with rated load of 1.5μF has good dynamic performance within 0~3μF,and the output voltage accuracy reaches 0.7 mV.

关 键 词：压电驱动电源 动态容性负载 超前反馈 稳定性分析 压电控制 

分 类 号：TN384[电子电信—物理电子学] TM22[一般工业技术—材料科学与工程]