A Reliability Analysis of Cascaded TMR Systems
Cascaded TMRs (Triple Module Redundancy) have been used in various areas like pipeline process, redundant Poly-Si TFT, and etc. Original cascaded TMR with one voter has a single point of failure problem, so that a lot of model studies of cascaded TMR have been done for making more reliable and cost-effective model than previous one. The model with one voter in previous work improves reliability compared to the original one by solving a single point of failure problem. However, the model requires strict rule to improve the reliability. The way to loosen the strict rule is to use more than one voter per stage. However, using more than one voter in the every stage is not a cost-effective solution. In this paper, we suggested a cost-effective new model of cascaded TMR. At the same time, the model also loosened the strict rule in previous works.
KeywordsCascaded TMR Multi-Stage TMR Reliability Fault-Tolerance
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