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.
出处
《自动化信息》
2012年第6期40-42,共3页
Automation Information
关键词
PA85
压电陶瓷
驱动电源
运算放大器
高电压
PA85
Piezoelectric Ceramics
Driving Power
Operational Amplifier
High Voltage
