论文部分内容阅读
鉴于强电磁脉冲对电子产品的强大损坏力,建模分析了强电磁脉冲在电源线上的耦合电压大小。基于耦合电压大小,设计了直流电源防护电路。防护电路由瞬态防护部分和低通滤波部分组成。其中,瞬态电路用来降低耦合电压脉冲幅度,低通滤波电路滤除耦合电压的高频部分。最后,不同电路参数进行优化组合得出最优效果的防护电路。仿真和实验结果表明:本文设计的防护电路可以很好地防护直流电源不受强电磁脉冲影响。
In view of the powerful damage of strong electromagnetic pulse on electronic products, the modeling analyzes the coupling voltage of strong electromagnetic pulse on the power line. Based on the coupling voltage, a DC protection circuit is designed. Protection circuit by the transient protection and low-pass filter part of the composition. Among them, the transient circuit is used to reduce the coupling voltage pulse amplitude, low-pass filter circuit to filter out the high frequency part of the coupling voltage. Finally, different circuit parameters to optimize the combination of the best protective effect of the circuit. The simulation and experimental results show that the protection circuit designed in this paper can well protect the DC power supply from the strong electromagnetic pulse.