A novel fault-tolerance design model for automatic synthesis of circuit robust to unknown fault

Abstract

Analog circuits are indispensable in many electronic system design, as fundament. Considering accuracy and stability of circuit, fault-tolerance design is of great significance. For the lack of automatic design of fault-tolerant analog circuit robust to unknown fault, this paper presents a fault-tolerance design process with two steps: standard design and fault-tolerant design. A novel fault-tolerance design model and three fault-models are proposed. An Ultra-Wideband Highpass Filter satisfying RF design specification is designed as a case study. Experimental results shows that, the tolerant-circuit performs relatively robust compared with Butterworth highpass filter and standard-design circuit. The two-steps fault-tolerance design process is successfully used to design fault-tolerant analog circuit robust unknown fault.