TY - GEN
T1 - Analog circuits testing by means of walsh-hadamard spectrum of supply current transient state monitoring
AU - Golonek, Tomasz
PY - 2013
Y1 - 2013
N2 - The paper presents a practical technique of the analog circuits testing based on its supply current waveform evaluation. The decision about an actual circuit under test state is made during the circuit power turn on stage. The step of the supply voltage with an assumed rise time stimulates the circuit and the differential of its current response is decomposed by means of Walsh-Hadamard transform. The analysis of the spectra in the sequences domain allows to detect faults presence effectively. Finally, after the circuit testing on launching stage, only in case of its healthy state confirmation, it is admitted for use. Thanks to the minimal computational effort necessary for the applied kind of transformation, the proposed method is suitable to build in reliable systems with the use of a cheap microcontroller. Besides, the numerical complexity of the method can be easily reduced additionally by the set of the observed spectra points minimization by means of genetic algorithm.
AB - The paper presents a practical technique of the analog circuits testing based on its supply current waveform evaluation. The decision about an actual circuit under test state is made during the circuit power turn on stage. The step of the supply voltage with an assumed rise time stimulates the circuit and the differential of its current response is decomposed by means of Walsh-Hadamard transform. The analysis of the spectra in the sequences domain allows to detect faults presence effectively. Finally, after the circuit testing on launching stage, only in case of its healthy state confirmation, it is admitted for use. Thanks to the minimal computational effort necessary for the applied kind of transformation, the proposed method is suitable to build in reliable systems with the use of a cheap microcontroller. Besides, the numerical complexity of the method can be easily reduced additionally by the set of the observed spectra points minimization by means of genetic algorithm.
KW - Monte Carlo analysis
KW - Walsh-Hadamard transform
KW - analog faults detection
KW - circuit under test
UR - https://www.scopus.com/pages/publications/84883681805
U2 - 10.1109/HSI.2013.6577855
DO - 10.1109/HSI.2013.6577855
M3 - Conference contribution
AN - SCOPUS:84883681805
SN - 9781467356374
T3 - 2013 6th International Conference on Human System Interactions, HSI 2013
SP - 401
EP - 406
BT - 2013 6th International Conference on Human System Interactions, HSI 2013
T2 - 2013 6th International Conference on Human System Interactions, HSI 2013
Y2 - 6 June 2013 through 8 June 2013
ER -