现代模拟电路故障诊断技术发展综述

Summary of Development of Modern Diagnostic Techniques of Analog Circuit Fault

模拟电路的故障率长期以来居高不下,但模拟电路由于其客观世界信号本质无法完全被数字电路取代,模拟电路的可靠性也成为制约电路系统可靠性的关键因素;主要针对模拟电路的软故障诊断方法进行了研究,分析了模拟电路在故障诊断中的难点,分别对传统和智能化的故障诊断发展和研究现状进行了综述,展望了未来模拟电路故障诊断的发展趋势。

The failure rate of analog circuits has been high for a long time,but the analog circuit cannot be completely replaced by digital circuits because of its objective world signal nature.The reliability of analog circuits has become a key factor that limits the reliability of circuit systems.This article mainly studies the soft fault diagnosis method of analog circuit,analyzes the difficulties of analog circuit in fault diagnosis,and summarizes the development and research status of traditional and intelligent fault diagnosis,and forecasts the future fault diagnosis of analog circuit and its development trend.