HSpice在电路内部参数容差统计分析中的应用

提出一种基于HSpice的器件内部参数蒙特卡罗统计分析方法对电子电路进行仿真设计。针对PSpice软件只能采用特定库元件进行统计分析的局限性,研究HSpice蒙特卡罗分析的技巧、程序语句参数的设置、输出结果的判读等,解决基于高精度内部参数器件模型的电路性能仿真,给出应用该方法实现电路内部参数蒙特卡罗统计分析的仿真过程。可以有效地提高电路设计的准确性、可靠性和电子产品生产的合格率。实验表明这种方法可以对组成电路器件的任意参数进行蒙特卡罗统计分析,包括MOS管、运放等的模型内部参数,在优化电路设计中具有很高的实用性。

Statistical Tolerance Analysis of Interior Parameters of HSpice

An effective method is proposed by concatenating interior parametric statistical analysis of devices,with Monte-Carlo analysis based on HSpice.Aiming at the limitations of using specific components for statistical analysis,the technique procedure statement set of parameters and interpretation of output results about HSpice Monte-Carlo are researched.The circuit performance simulation based on high precision interior parameter device model,and the simulation process is given by this method to achieve interior parameter Monte-Carlo statistical analysis.It can enhance accuracy,reliability and eligibility.The simulation results show the proposed scheme can meet the design target specifications completely.The method is very effective and valuable for optimizing electronic circuit design.