Abstract: A tolerance design method based on maximum tolerance region is presented in this article. First, the concept of maximum tolerance region is given, and its properties and features are analyzed. Second, taking the volume of the tolerance region as a design criterion, a circuit tolerance design method is proposed. To achieve optimized design, an algorithm based on electronic design automatic (EDA) tool is used. Finally, an example of an amplifier circuit design is conducted, and the result illustrates the validity of the proposed method. This method is especially suitable in early stages of design and it can meet the requirements of robustness more efficiently since it eliminates the flaw of the traditional tolerance design based on tolerancecost function.

Key words: maximum tolerance region, tolerance design, robust design, optimization, electronic design automatic