lumped circuit

Telegraph equations, can be looked as cascade connection of two-port network of lumped circuit of transmission line, is a hyperbolic partial differential equations.

传输线可以看作集中参数二端口网络的级联，其数学模型&电报方程是一阶双曲型偏微分方程组。

parameter estimation of lumped circuit models for conducted emi in power converters

变换器传导电磁干扰集中等效模型参数估计方法

PCB design is based on the signal integrity analysis, through the lumped circuit elements ( resistors, capacitors and inductors) and transmission lines are equivalent, modeling and analysis, and thus the physical properties change into electrical model.

PCB的设计是在基于信号完整性分析的基础上，通过对集总电路元件（电阻、电容和电感）和传输线等进行等效、建模分析，从而把物理特性转化为电气模型。