空间激光通信系统精跟踪单元PZT驱动电源的设计  

Design of the Driving Power of Fine Tracking Unit PZT in Space Laser Communication System

作　　者：李奕[1] 李晓峰[1] 

机构地区：[1]电子科技大学空天科学技术研究院,四川成都611731

出　　处：《自动化信息》2012年第6期40-42,共3页Automation Information

摘　　要：压电陶瓷驱动电源是压电陶瓷微位移器应用中的关键部件。PA85是一种高电压、高功率MOSFET的带宽运算放大器，采用双电源供电，输出电流高达200mA，输出电压更可高达±215V。该文详细介绍了基于PA85的一种电源复合放大器的设计及仿真，通过对各项性能指标的仿真表明，该驱动电源具有精度高、分辨率高、稳定性好、纹波小和电路结构简单等优点。PZT driving power is the key component in the application of the micro-displacement piezoelectric actuator. The PA85 is a bandwidth operational amplifier with the high voltage, high power MOSFET, which is supplied by the dual power. Its out- put current reaches up to 200mA and the output voltage can be up to ±215V. The design and simulation of the PA85 based driving power composite amplifier are elaborated in this paper. The amplifier＇s performances are analyzed through the simulation with a result of high precision, high resolution, well stability, low ripple wave and simple circuit structure.

关 键 词：PA85 压电陶瓷 驱动电源 运算放大器 高电压 

分 类 号：TN929.1[电子电信—通信与信息系统]