高压开关电源开环与闭环特性比较  

Comparison of Open Loop and Closed Loop Characteristics of the High Voltage Switching Power Supply

作　　者：姜静[1] 潘琳琳[1] 李宏达[2,3] 车龙[2] 赵红阳[2] 尹伯 

机构地区：[1]沈阳理工大学自动化与电气工程学院,辽宁沈阳110168 [2]沈阳理工大学装备工程学院,辽宁沈阳110168 [3]清华大学机械系,北京100084

出　　处：《电子科技》2016年第8期1-3,共3页Electronic Science and Technology

基　　金：国家自然科学基金资助项目(51207096);爆炸科学与技术国家重点实验室(北京理工)开放基金资助项目(KFJJ13-6M)

摘　　要：现研制出紧凑型重复频率的高压开关电源,该电源具有体积小、成本低等优点,设计指标是在70 kΩ负载阻抗上上升沿600 ns,半脉宽1.5μs,输出瞬时电压峰值30-210 k V可调且电压正负可转换。采用Matlab/Simulink软件仿真和实验验证高压开关电源开环性能指标,针对开环输出电压难以保持稳定,且难以使开关电极稳定触发的缺点,加入反馈构成闭环系统并利用Pspice软件仿真,可获得稳定输出电压154 k V,达到稳定时间20μs。通过对高压开关电源开环和闭环系统的计算机仿真结果比较,可得加入反馈系统的高压开关电源具有良好的稳压特性。A small-size low-cost high voltage switching power supply is developed. An output voltage of 30 - 210 kV can be adjusted and converted at 70 kΩ and a half width of 1.5 μs. The performance index are verified by matlab/simulink simulation and experiments, and the Pspice simulation is also introduced in view of the difficulty in maintaining the stability of open loop output voltage and the switch electrode of the feedback loop system, thus offering a stable output voltage of 154 kV at a stable time of 20 μs. Computer simulation results show that the high voltage switching power supply with the feedback system has good voltage regulation characteristics.

关 键 词：高压开关电源 开环 反馈系统 闭环 稳压 

分 类 号：TN86[电子电信—信息与通信工程]