电容器通过变压器对脉冲形成线充电过程

从T模型等效电路出发，在等效电路中磁化电感两端的电压在形成线等效电容充电到第一个峰值之前变化较小这一假设之下，推导了电容器通过变压器对脉冲形成线充电的解析表达式，给出了考虑回路存在电阻和杂散电感下的表达式。最后利用电路模拟来验证解析表达式，结果表明:给出的解析表达式能够较好地分析电容器通过变压器对脉冲形成线充电过程；在形成线充电的第一个半周期内，解析理论得到的结果与模拟结果比较吻合，在原边电容和形成线等效电容可比较的情况下，从变压器耦合系数较低（不超过0.7）到耦合系数接近于1的情况都适用。

Charging process of pulse forming line with capacitor through transformer

From the T-model’s equivalent circuit, the analytical expressions of charging pulse forming line (PFL) with capacitor through transformer are obtained, based on the assumption that the voltage on magnetization inductance in the equivalent circuit varying a little during the charging process of the PFL from the start to the first charging voltage peak. The loop resistance and the loop inductance are considered in the expressions. The simulation shows that the results of the analytical expressions are in good accordance with those of the simulation from the start of charging to the first charging voltage peak. The expressions are valid as the coupling coefficient of transformer is varied from no more than 0.7 to nearly 1, in the case that the primary capacitance and the equivalent capacita