Monte-carlo算法在开关电源容差分析中的应用  

Monte-carlo Algorithm Applied in the Analysis of the Allowance Design in Power Supply System

作　　者：孟慧英[1] 张常玉[1] 

机构地区：[1]上海贝尔股份有限公司,南京江苏210037

出　　处：《电源世界》2016年第2期32-34,31,共4页The World of Power Supply

摘　　要：容差分析技术是一种预测电路性能参数稳定性的方法。在电子电路的可靠性设计中,蒙特·卡罗分析法是进行容差分析的主要方法之一。通过多次分析结果估算出电路性能的统计分布规律,如电路性能的中心值、方差等。本文以电源输出调整率为例,应用蒙特·卡罗分析法运用Simetrix仿真工具进行容差分析设计,模拟实际生产中因电路中所用元器件参数的分散性所引起的电路性能的分散性,预见系统是否具有较好的稳定性,从而可以在节省设计时间和设计费用的条件下优化所设计的电路,提高所设计产品的可靠性。Tolerance analysis technique is a method to predict the stability of circuit performance, in the reliability design of electronic circuits, the Monte Carlo analysis method is one of the main methods of tolerance analysis. The statistical distribution of the circuit performance is estimated by multiple analysis results, such as the central value of the circuit performance, the variance, and so on. This paper used Monte Carlo analysis method, with the SIMetrix simulation tool simulating the power output adjustment rate as an example. simulated the dispersion of the components parameters in the actual production process, predicted the system ＇s stability, so as to optimize the design time and design cost of the circuit to improve the reliability of the designed product.

关 键 词：蒙特卡罗算法 容差分析 Simetrix 仿真 

分 类 号：TN86[电子电信—信息与通信工程]