分布电容及倍压电路输出电压研究  

Study on Output Voltage of Distributed Capacitance and Voltage Doubling Circuit

作　　者：贺增辉 毛鹏[1] 张晓强[1] HE Zenghui;MAO Peng;ZHANG Xiaoqiang(College of Information,North China University of Technology,Beijing 100144,China)

机构地区：[1]北方工业大学信息学院,北京100144

出　　处：《电气传动自动化》2022年第3期52-55,共4页Electric Drive Automation

基　　金：国家重点研发计划(2021YFE0103800)。

摘　　要：X射线管在工作时需要高压电源进行供电,其高压是通过多级倍压电路来产生的,其中最常见的是半波Cockcroft-Walton倍压整流电路。在HWCW倍压整流电路结构下,对不同电容分布所产生的阻抗大小进行对比,同时又对结构相同且电容分布相同的对称倍压整流电路进行对比。实验结果表明,对称式倍压整流电路的阻抗最小,即每级倍压整流单元均采用同容值电容,其输出阻抗比其他结构可以降低2倍以上且输出电压最高,对该理论的正确性也进行了相关的仿真验证研究。The X-ray tubes need high-voltage power supply when they work.The high voltage is generated by multi-stage voltage doubling circuit.The most common one is half wave Cockcroft-Walton voltage doubling rectifier circuit.Under the structure of HWCW voltage doubling rectifier circuit,the impedance generated by different capacitance distribution is compared,and the symmetrical voltage doubling rectifier circuit with the same structure and capacitance distribution is compared.The experimental results show that the impedance of the symmetrical voltage doubling rectifier circuit is the smallest,that is,each voltage doubling rectifier unit adopts the same capacitance,its output impedance can be reduced by more than 2 times compared with other structures,and the output voltage is the highest.The correctness of this theory is also verified by simulations.

关 键 词：高压电源 半波Cockcroft-Walton电路 倍压整流电路 

分 类 号：TM86[电气工程—高电压与绝缘技术]