Research Initiation: Mixed-Mode Analog/Digital Simulation of MOS Circuits

本文对集成了模拟和数字元件的MOS(金属氧化物半导体)电路进行了仿真研究。他提出了一种算法，将一个由大型电路组成的网络划分为许多相互电阻隔离的小型子电路。该算法为电路创建单向信号路径图。一旦完成此操作，全局电路仿真就会按照图中的深度级别分解为单独的子电路分析。部分模拟使用事件驱动松弛，这是事件驱动模拟和波形松弛的组合。他正在研究一种特殊用途的模拟模拟器，以分析模拟行为。另一个问题是使用分段线性时序分析来高效、准确地估计数字子电路响应的算法。

This rewsearch is on simulating MOS (metal oxide semiconductor) circuits which integrate analog and digital components. He proposes an algorithm which partitions a network of large-scale circuits into numerous small-scale subcircuits which are resistively isolated from each other. The algorithm creates a unidirectional signal path graph for the circuit. Once this is done, the global circuit simulation is decoupled into individual subcircuit analyses by following the depth levels in the graph. Part of the simulation uses event-driven relaxation, which is a combination of event-driven simulation and wave-form relaxation. He is investigating a special purpose analog simulator to analyze analog behavior. Another problem is algorithms which use piece- wise linear timing analysis to efficiently and accurately estimate digital subcircuit response.