基于AD9850的微电铸超窄脉冲电源的设计与应用  

Design of Micro Electroforming Ultra-narrow Pulse Power Supply Based on AD9850 and Its Application

作　　者：赵忠 朱鹏程[1] ZHAO Zhong;ZHU Pengcheng(Jiangsu Provincial Key Laboratory of Advanced Manufacturing for Marine Mechanical Equipment,School of Mechanical Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003,China)

机构地区：[1]江苏科技大学机械工程学院,江苏省船海机械先进制造及工艺重点实验室,江苏镇江212003

出　　处：《电加工与模具》2021年第4期46-50,共5页Electromachining & Mould

基　　金：江苏省自然科学青年基金资助项目(BK20170583);中国博士后科学基金资助项目(2019M661736);江苏科技大学自制实验教学仪器设备项目(180813102002)。

摘　　要：为了克服微电铸技术应用中普通脉冲电源开关控制难度大、成本高、干扰强的缺点,采用STC89C51单片机与AD9850芯片设计了一款百纳秒级脉冲宽度、兆赫兹级脉冲频率的超窄高频脉冲电源,完成了脉冲电源硬件与软件的设计,并制作了电源样机,采用脉冲电源制作电镀层,利用扫描电镜与表面轮廓仪表征了电镀层表面质量。结果表明:脉冲电源输出波形较好,制作的电镀层表面质量较高,适用于微电铸加工。In order to overcome the shortcomings of ordinary pulse power switch in the application of micro electroforming area such as difficult in control,high cost and strong electrical interference,the STC89C51 microcontroller and AD9850 chip were used to design an ultra-narrow high pulse power supply with width of hundred nanoseconds and pulse frequency of megahertzs.The design of the hardware and software of the pulse power supply were completed,and the power supply prototype was made.The pulse power supply was used to make the electroplating layer,and the surface quality of the layer was characterized by the scanning electron microscope and the surface profiler.The results showed that the pulse power supply has a better output waveform and a better surface quality of the electroplated layer.It was demonstrated that the pulse power supply is suitable for micro electroforming processing.

关 键 词：微电铸 高频脉冲电源 单片机 电镀层 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]