Costa, G.; Pous, M.; Atienza, A.; Silva, F. International Symposium on Electromagnetic Compatibility p. 833-837 DOI: 10.1109/EMCEurope.2014.6931019 Presentation's date: 2014-09-03 Presentation of work at congresses
In Electromagnetic Compatibility emission measurements, a common problem takes place when equipment producing intermittent disturbances are measured according to standard procedures. In many cases, it is impossible to capture the maximum emission using conventional receivers with only one or several sweeps. A significant measurement improvement is possible when time-domain captures and post-processing implementing digital fast Fourier transform (DFT) is used to obtain the frequency spectrum. In addition, the time-domain method offers the possibility to capture all the spectrum frequency range of one single event and evaluate rapidly all the different functional modes of a complex EUT. In this paper, the time-domain method is described and validated for conducted emissions test. For the validation proposes, a multisine signal is measured using the developed method and the results are compared with results acquire from an EMI receiver. Finally, after validation, the time-domain method is applied to complex equipment observing the main advantages that the developed method provides.
Cristófoli,, L.; Silva, F.; Hengles, A.; Benfica, J.; Bolzani, L.; Vargas, F.; Atienza, A. European Symposium on Electromagnetic Compatibility p. 899-904 DOI: 10.1109/APEMC.2010.5475640 Presentation's date: 2010-09-16 Presentation of work at congresses
Cristofoli, L.; Henglez, A.; Benfica, J.; Bolzani, L.; Vargas, F.; Atienza, A.; Silva, F. Asia-Pacific Symposium on Electromagnetic Compatibility p. 1047-1050 Presentation's date: 2010-04-13 Presentation of work at congresses
Nowadays, the major part of electronic devices make use of synchronous circuits controlled by a global clock signal. However, the noise sensitivity as well as the electromagnetic emission of this type of circuit is very high. In this context, asynchronous circuits represent a very interesting solution, since they are naturally more robust than the synchronous counterparts. The proposed work aims at comparing the robustness of synchronous and asynchronous circuits generated according to the Desynchronization Approach presented in when they are exposed to power supply disturbances (PSD). To provide the necessary results to compare the two different design paradigms, we performed a set of experiments according to the IEC 61.000-4-17 and the IEC 61.000-4-29 Normatives. The obtained results demonstrate that the asynchronous circuit is significantly more robust than the synchronous one.
Quilez, M.; Atienza, A.; Fernández-Chimeno, M.; Fernandez, M.; Riu, P.; Silva, F.; Aragon, M. IEEE transactions on electromagnetic compatibility Vol. 50, num. 4, p. 1007- Date of publication: 2008-11 Journal article