中文摘要：

针对压电陶瓷驱动器在六自由度微动平台中的应用，研制了基于FPGA和PA85的六通道高精度数字驱动电源．该驱动电源分为D／A转换和高压线性放大两个模块，D／A转换模块将计算机发出的数字信号指令转换成模拟电压信号输出并进行初级低压放大，高压线性放大模块采用直流放大式电路，将经过初级放大的电压信号进行高压放大．实验结果表明，该驱动电源具有输出精度高、响应速度快、驱动能力强、稳定性好、结构简单、集成度高和调试方便等特点，能有效地应用于六自由度微动平台驱动中．

英文摘要：

High resolution piezoelectric ceramic （PZT） digital driving power supply based on FPGA and PA85 was designed for the application of the PZT actuator in six degrees of freedom of （6-DOF） micro-displacement platform. The driving power supply presented was composed of two modules. One was the D/A convert module, which converted the digital signal instruction from the computer to analog voltage signal, primarily amplifying the output signal under a low-voltage. The other was the high-voltage linear amplifier module, which amplified the voltage signal after primary step under a high voltage. The experiment results indicate that the driving power supply has the advantages of high precision, quick response, strong driving capability, high stability, simple circuit, high integration, convenient debugging and so on, which makes it suitable for the application of driving 6-DOF micro-displacement platform.