中文摘要：

根据电解-机械复合加工方法的特点,分析了加工所需脉冲电源的要求,设计了一种双极性脉冲电源。该电源采用PIC18F458单片机作为控制系统的核心,主电路采用双电源斩波结构,可实现双极性方波交流、直流、脉冲电流等多种输出。正负半波的幅值、频率及占空比均可调节,经实际使用,证明该电源具有稳定、可靠的特点,能满足电解复合磨削的工艺要求。

英文摘要：

According to the specific characteristics of machine-electrochemistry,this paper analyses demands of machining for the pulse power supply,then puts forward bipolar pulse generator.The power supply adopts PIC18F458 as a core of the control system,the main circuit uses double powers chopper. It can output several kinds of voltage such as bipolar square wave AC,DC and pulse current etc.Its current frequency,positive and negative current time and amplitude value can adjust respectively. And it is stable and reliable during actual using, and satisfies the process of the machine-electrochemistry.