根据物理量之间关系确定动态电路冲激响应初始值

根据冲激函数的奇异性质,了解冲激响应初始值发生跃变的实质.提出在t=0时刻由于电容电压和电感电流还未及跃变,可以把电容用短路来替代,电感用开路来替代,画t=0时刻的等效电路,找到电容电流和电感电压谁是冲激量,由相关物理量之间的相互约束关系,确定冲激响应的初始值.

Determining the Initial Value of Impulse Response of Dynamic Circuit Based on the Relation between Physical Quantities

This paper introduces the nature of initial value jump of impulse response according to the singularity of impulse function. The proposal is that capacitor can be substituted by short circuit, and inductance by open circuit before capacitance voltage and inductor current jump when t = O. The equivalent circuit is drafted when t = O, in order to determine which is impulse intensity, capacitance voltage or inductor current. And the initial value of impulse response can be determined by analyzing the constraint relation between related physical quantities.