基于Blumlein脉冲形成网络的直线变压器驱动源设计

Design of linear transformer driver based on Blumlein pulse forming network

设计了基于Blumlein脉冲形成网络的直线变压器驱动源单元模块。双路阻抗各为20Ω的Blumlein脉冲形成网络对称连接于直线变压器驱动源(LTD)的初级绕组上,此种接法降低了脉冲形成网络(PFN)的设计难度,有利于形成更好的脉冲。在LTD次级绕组所接的10Ω匹配负载上输出高压脉冲,实验结果表明,单个LTD模块输出脉冲半高宽约200 ns,前沿约为55 ns,平顶约为100 ns。

A cell module of linear transformer driver（LTD）,based on Blumlein pulse forming network（PFN）,is designed.Two Blumlein PFNs with 20 Ω resistance are symmetrically connected with the LTD＇s primary coil.The connection reduces the design difficulty of PFN and improves the output pulse quality.High voltage pulses are derived from a 10 Ω matching load connected with the LTD＇s secondary coil.The output pulse of the LTD module is about 200 ns in duration with a rise time of about 55 ns and a flat top of about 100 ns.