基于Simulink的数模混合电路仿真平台设计与实现

Design and Implementation of Digital Analog Hybrid Circuit Simulation Platform Based on Simulink

针对数模混合电路仿真精度与性能之间的矛盾问题和仿真工业级复杂数模混合电路时仿真工具存在主流芯片和电路模块不足问题,提出了一种粘合模式的数模混合仿真平台模型架构,基于该架构设计并实现了一种基于Simulink软件,通过嵌入数字电路和模拟电路主流仿真引擎获得充足主流芯片和电路模块支持的数模混合电路仿真平台,设计了一种结合了拓扑排序算法的仿真控制方式,实现了对工业级复杂电路进行流程化、模块化的数模混合仿真;最后通过一个能够时序上可以逻辑拆分的典型数模混合电路仿真验证了仿真平台的有效性。

Aiming at the contradiction between simulation accuracy and performance of digital analog hybrid circuits,and there is the shortage of mainstream chips and circuit modules in simulation tools by simulating industrial complex digital analog hybrid circuits,a digital analog hybrid simulation platform model architecture in the bonding mode is proposed.Based on this architecture,a software design based on the Matlab/Simulink tool is implemented.By embedding the mainstream simulation engine of digital circuit and analog circuit to obtain the digital analog hybrid circuit simulation platform,which is supported by the sufficient mainstream chips and circuit modules,a simulation control mode combined with the topology sorting algorithm is designed to realize the flow and modular digital analog hybrid simulation of industrial complex circuits.Finally,the effectiveness of the simulation platform is verified by the simulation of the typical digital analog hybrid circuit which can be logically split in timing.