International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2569

Full Length Research Paper

Two methods for extracting the parameters of a non-ideal diode

M. Khalis
  • M. Khalis
  • Laboratory of Condensed Matter, Faculty of Sciences and Techniques, University of Hassan II Mohammedia, Casablanca, Avenue Hassan II, BP 146, 28800 Mohammedia, Morocco.
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R. Masrour
  • R. Masrour
  • Laboratory of Materials, Processes, Environment and Quality, Cady Ayyed University, National School of Applied Sciences, Safi, Morocco. LMPHE (URAC 12), Department of Physics, B.P. 1014, Faculty of Science, Mohammed V-Agdal University, Rabat, Morocco.
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Y. Mir
  • Y. Mir
  • Laboratory of Condensed Matter, Faculty of Sciences and Techniques, University of Hassan II Mohammedia, Casablanca, Avenue Hassan II, BP 146, 28800 Mohammedia, Morocco.
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M. Zazoui
  • M. Zazoui
  • Laboratory of Condensed Matter, Faculty of Sciences and Techniques, University of Hassan II Mohammedia, Casablanca, Avenue Hassan II, BP 146, 28800 Mohammedia, Morocco.
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  •  Received: 15 January 2015
  •  Accepted: 26 March 2015
  •  Published: 30 April 2015

Abstract

We describe two methods of extracting physical parameters of a non ideal p-n diodes. These include the ideality factor, saturation current and series resistance. The proposed techniques that treat extraction parameters, using the current-voltage characteristic (I,V) forward biased. The first method is to learn three different points of the curve, with the coordinates of these points, one can generate a system of nonlinear equations expressing the electrical parameters. The resolution of these non-linear equations was performed by the numerical method of Newton-Raphson. The second is based on the least squares method. Both methods are tested using programs developed in Matlab code based on the experimental characteristic (I-V) of two different diodes in silicon.
 
Key words: Diode characteristic, electrical parameters, w-function Lambert, equations of non-linear system, method of least squares.