Method of reliability tolerance design based on EDA technology and its application on DC hybrid contactor

Tolerance design, including tolerance analysis and distribution, is an important part of the electronic system＇s reliability design. The traditional design needs to construct mathematic model of material circuit, which involves large amount of workload and lacks of practicability. This paper discusses the basic theory of electronic system＇s reliability tolerance design and presents a new design method based on EDA （Electronic Design Automatic） software. This method has been validated through the application research on reliability tolerance design of the DC hybrid contactor＇s control circuit.