Faults Classification in Analog Circuits Using Nearest Neighbours of Fault Variables

Faults classification using nearest neighbour estimate of fault variables of circuit under test (CUT) is
proposed. Fault variables corresponding to the components of CUT are found from the fault free,
faulty circuit parameters and test vectors of the components. The proposed method does not require
any test point or node selection techniques for fault diagnosis. The faults classification technique is
tested using benchmark circuits like Sallen Key Band Pass Filter.