An EMI Filter Selection Method Based on Spectrum of Digital Periodic Signal
AbstractThis paper describes a new method for the selection of an appropriate signal lineElectromagnetic Interference (EMI) filter. To date, EMI filter selection has been based onthe measurement of the radiation of the entire device. The new selection method based onthe signal’s Fast Fourier Transform (FFT) measurement has proved to be efficient. The EMIfilter is optimized separately for each line. The method described in this paper involving aCentral Processor Unit (CPU) module demonstrates that the proposed FFT-based selectionmethod is better than the radiation-based one. The radiation level in the frequency range 30MHz to 1 GHz is lower for approximate 2 – 6 dBμV/m.
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Podbersic, M.; Matko, V.; Segula, M. An EMI Filter Selection Method Based on Spectrum of Digital Periodic Signal. Sensors 2006, 6, 90-99.
Podbersic M, Matko V, Segula M. An EMI Filter Selection Method Based on Spectrum of Digital Periodic Signal. Sensors. 2006; 6(3):90-99.Chicago/Turabian Style
Podbersic, Marko; Matko, Vojko; Segula, Matjaz. 2006. "An EMI Filter Selection Method Based on Spectrum of Digital Periodic Signal." Sensors 6, no. 3: 90-99.