基于Laplace变换的RLC电路特性研究与仿真

摘要

In order to improve the understanding of RLC (resistance,inductance and capacitance)in the circuit, the transfer function is established by using the Laplace model for the RLC series two-order circuit.Through the transfer function,the working states of the underdamping,the critical damping and the overdamping of the circuit are analyzed,and their state traj ectories and frequency characteristics,etc.,are studied.The RLC series circuit is designed at the EDA software platform.The three working states,the state trajectories and the frequency characteristic curves are simulated,and the clear graphs are obtained.%为了提高对电路中电阻、电感、电容的理解,对RLC串联二阶电路采用Laplace模型建立了传递函数,通过传递函数对电路的欠阻尼、临界阻尼和过阻尼的工作状态进行分析,对其状态轨迹、频率特性等进行了研究.在EDA软件平台中设计了RLC串联电路,对3种工作状态、状态轨迹以及频率特性曲线进行了仿真,得到了清晰的图形.