论文部分内容阅读
在含有两个独立动态元件的电路中,单网络变量的电路方程是二阶微分方程,这样的电路称二阶电路。用时域分析直接求解二阶微分方程时、费时、费力、难度较大,须建立电路方程,求特解、通解以及用初始条件确定积分常数等。若使用拉普拉斯变换,将时域函数转化为S域函数,待确定响应后再用拉氏反变换得到时域响应即最后的解。这种分析方法不用求特解,通解及确定积分常数,求解较为简单。
In a circuit with two independent dynamic components, the circuit equations for a single network variable are second order differential equations. Such a circuit is called a second order circuit. Time-domain analysis of direct solution of second-order differential equations, time-consuming, laborious, more difficult, the need to establish circuit equations, seek special solutions, general solution as well as the initial conditions to determine the integral constant. If the Laplace transform is used, the time-domain function is transformed into a S-domain function. After the response is determined, the time-domain response, ie, the final solution, is obtained using the Laplace inverse transform. This analytical method does not require special solutions, general solution and determine the integral constant, the solution is relatively simple.