Analysis of Intermittent Faults Mechanism of Aviation Computer Power Module
With the continuous and deep exploration of various countries in the aerospace field,various types of equipment are developing to wards intelligence and automation,the equipment structures are becoming more and more complex,and the working environments are becoming more diversified,intermittent faults gradually become a prominent problem in the smooth use and maintenance of electronic equipment.Among them,the in-termittent faults of the power conversion circuit module of the aviation computer occur repeatedly in recent years,which affect the stability of the aviation computers and the normal operation of the equipment.Facing the actual needs of engineering,the DC-DC power conversion circuit is taken as the research object.According to the existing theory of intermittent faults,through principle derivation,simulation analysis and experimental veri-fication,the intermittent faults mechanism that may occur in the circuit are deeply analyzed and recurrenced.The causes of intermittent faults are summarized,which provide the theoretical reference for intermittent faults diagnosis under the actual working conditions of aviation computers in the future.