NYI: Improved Circuit Simulation Using Results from Circuit Theory

NYI：使用电路理论的结果改进电路仿真

• 批准号: 9457387
• 负责人: Michael Green
• 金额: $ 15万
• 依托单位: SUNY at Stony Brook
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-15 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9457387&HistoricalAwards=false
• 关键词: NYI; Improved; Circuit; Simulation; Using

This research is applying the principal investigator's previous work in the area of nonlinear circuit theory to make major enhancements to the way designers simulate analog circuits. In particular, improvements to the continuation methods of solving dc operating points of circuits are being made guaranteeing that all of a circuit's operating points will be found during a single analysis. Moreover, continuation methods are being applied to sensitivity analysis of circuits; for example, by making observations of a continuation curve, a designer could determine whether a circuit is prone to a latch up condition. Erroneous models are thought to be a major source of convergence problems and erroneous results in circuit simulation. Another enhancement to circuit simulation includes checking the accuracy of transistor models by verifying that all models satisfy passivity and the no- gain condition.

这项研究应用了首席研究员之前在非线性电路理论领域的工作，对设计人员模拟模拟电路的方式进行了重大改进。 特别是，正在对求解电路直流工作点的连续方法进行改进，以保证在单次分析期间找到电路的所有工作点。 此外，连续方法也被应用于电路的灵敏度分析；例如，通过观察连续曲线，设计人员可以确定电路是否容易出现闩锁状况。 错误的模型被认为是电路仿真中收敛问题和错误结果的主要原因。 电路仿真的另一个增强功能包括通过验证所有模型是否满足无源性和无增益条件来检查晶体管模型的准确性。