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

本文研究的是模拟集成了模拟和数字元件的MOS（金属氧化物半导体）电路。他提出了一种算法，该算法将大规模电路网络划分为许多小规模的子电路，这些子电路彼此电阻隔离。该算法为电路创建了一个单向信号路径图。一旦完成了这一点，通过遵循图中的深度级别，将全局电路模拟解耦到单个子电路分析中。部分仿真使用事件驱动的松弛，这是事件驱动仿真和波形松弛的结合。他正在研究一种特殊用途的模拟模拟器来分析模拟行为。另一个问题是利用分段线性时序分析的算法来高效、准确地估计数字子电路的响应。

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.