新型超窄脉宽脉冲电源的设计与实现  

The Design and Implementation of a New Ultra-Narrow Pulse Power Supply

作　　者：林伟[1] 张春林[1] 

机构地区：[1]武汉理工大学自动化学院,湖北武汉430070

出　　处：《电加工与模具》2011年第B04期39-41,共3页Electromachining & Mould

基　　金：国家自然科学基金资助项目(60672058)

摘　　要：脉冲电源的脉宽及占空比对电化学加工的精度有着重要的影响。传统的脉冲电源一般采用开关斩波形式,对开关器件的开关速度要求很严格,且对开关器件的驱动也有很高的要求。对于电化学微细精加工,常用的开关器件很难达到超窄脉宽的要求。利用DDS信号电路产生基本信号,结合脉冲调理电路,设计一种新型超窄脉宽脉冲电源。实践表明:该超窄脉宽脉冲电源的脉宽最低可达10 ns,占空比可调,输出信号稳定性强,被成功应用于光学码板的加工。The Pulse width and pulse duty cycle of the pulse power have a significant impact for the precision of the electrochemical machining. The form of switching chopper is used by the traditional Pulse power generally, so the switching speed of the switching device is very important, and the drive for switching devices also have high demands for. The common switching devices are difficult to achieve ultra narrow pulse width. A new type of pulse power supply with the minimum pulse width of I0ns is designed based on DDS chip, pulse shaping circuit in this paper. The Output signal is stability, and suecessly used in the processing of optical codes boardo

关 键 词：脉冲电源 电化学加工 超窄脉宽 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]