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All Journal International Journal of Electrical and Computer Engineering APTIKOM Journal on Computer Science and Information Technologies (CSIT)
Maouhoub, Noureddine
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Computer Science & IT Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology

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EXTRACTION OF SERIES RESISTANCE AND MOBILITY DEGRADATION IN MOSFETS USING ITERATIVE METHOD Maouhoub, Noureddine; Rais, Khalid
APTIKOM Journal on Computer Science and Information Technologies Vol 5 No 1 March (2020): APTIKOM Journal on Computer Science and Information Technologies (CSIT)
Publisher : APTIKOM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34306/csit.v5i1 March.124

Abstract

Series resistance and mobility attenuation parameter are parasitic phenomena that limit the scaling of advanced MOSFETs. In this work, an iterative method is proposed to extract the series resistance and mobility degradation parameter in short channel MOSFETs. It also allows us to extract the surface roughness amplitude. The principle of this method is based on the exponential model of effective mobility and the least squares methods. From these, two analytical equations are obtained to determine the series resistance and the low field mobility as function of the mobility degradation. The mobility attenuation parameter is extracted using an iterative procedure to minimize the root means squared error (RMSE) value. The results obtained by this technique for a single short channel device have shown the good agreement with measurements data at strong inversion.  
Extraction of photovoltaic generator parameters through combination of an analytical and iterative approach Benahmida, Abdelaaziz; Maouhoub, Noureddine; Tifidat, Kawtar; Sahsah, Hassan
International Journal of Electrical and Computer Engineering (IJECE) Vol 12, No 5: October 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v12i5.pp4529-4537

Abstract

In the present work, we propose an improved method based on a combination of an analytical and iterative approach to extract the photovoltaic (PV) module parameters using the measured current-voltage characteristics and the simple diode model. First, we calculate the series resistance using a set of analytical formulas for the base values of the three current-voltage curves. Then, the three other parameters are analytically expressed as functions of serial resistance and ideality factor based on the linear least-squares method. Finally, the ideality factor is calculated applying an iterative algorithm to minimize the normalized root mean square error (NRMSE) value. The proposed method was validated with a real experimental set of two PV generators, which showed the best fit to the I-V curve. Moreover, the proposed method needs only the initial value of the ideality factor.
Co-Authors Benahmida, Abdelaaziz Rais, Khalid Sahsah, Hassan Tifidat, Kawtar