A Fault Detection Method for Reversible Circuits

This paper represents a redundancy based mechanism for fault detection in reversiblecircuits. In this method reversible circuit has been duplicated for fault detection. This duplication isbased on self complementary feature of reversible circuits. We have used a fully redundant circuitand a comparator for the purpose fault detection. In order to analyze the proposed method, singleand double faults have been investigated in the following four cases: fault tolerant comparator andsingle fault, non-fault tolerant comparator and single fault, fault tolerant comparator and doublefault, non-fault tolerant comparator and double fault. The results show that the proposed techniqueoffers 100%, 83%, 75% and 64% of fault detection respectively.