Idrissa Gaye - Academia.edu (original) (raw)

Papers by Idrissa Gaye

Research paper thumbnail of AC Induction Motor (ACIM) Control using a Digital Signal Controller (DSC)

Research Journal of Applied Sciences, Engineering and Technology, 2012

This study describes the use of a digital signal controller for an AC Induction Motor (ACIM) cont... more This study describes the use of a digital signal controller for an AC Induction Motor (ACIM) control through a three phase inverter. The main feature of the work is the simplicity of the hardware-only a 16 bit fixed point microcontroller with associated external conditioning integrated circuits. This lead to an extremely simple, low-cost and reliable system. A laboratory inverter prototype using a Microchip DSPIC33FJ128MC804 digital signal controller is developed and typical results are presented.

Research paper thumbnail of Experimental Device for Acquisition of Propertiesi- V and V (T) of the Solar By Automatic Change Operating Point

Abstract: Design and implementation of a device for automation of variations of the resistive loa... more Abstract: Design and implementation of a device for automation of variations of the resistive load powered by solar cell. It is provided by a PIC16F877 running a computer program that we have developed on the basis of an algorithm according to the operation that we have set. Index Terms—Solar cell, PWM, PIC16F877,

Research paper thumbnail of Effect of Irradiation on the Transient Response of a Silicon

Research paper thumbnail of Thermal behavior of a parallel vertical junction Silicon photocell in static regime by study of the series and shunt resistances under the effect of temperature

This work presents a theoretical study of a vertical parallel junction solar cell under multispec... more This work presents a theoretical study of a vertical parallel junction solar cell under multispectral illumination in steady state. Based on the diffusion equation, the excess minority carrier's density is expressed and the characteristic current-voltage, series resistance ant shunts resistance are determined. For all these parameters we showed the effect of external temperature.

Research paper thumbnail of Effet De Lirradiation Par Des Particules Chargees Sur Le Coefficient De Diffusion De La Base Dune Photopile Au Silicium (N+-P-P+) :Determination De Lepaisseur Optimum Sous Eclairement Monochromatique

International Journal of Advanced Research

Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.)... more Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.) sur une photopile au silicium n+-p-p+ sous eclairement dune lumiere monochromatique est consideree dans la determination de lepaisseur optimum de la base. Des expressions de la vitesse de recombinaison a la face arriere (Sb1 intrinseque et Sb2 dependante de labsorption de la lumiere) sont comparees graphiquement, donnant les epaisseurs optimales necessaires pour lelaboration de photopilesau silicium devant fonctionner dans des cas de flux denergie dirradiation.

Research paper thumbnail of Experimental Device for Acquisition of Propertiesi- V and V (T) of the Solar By Automatic Change Operating Point

Design and implementation of a device for automation of variations of the resistive load powered ... more Design and implementation of a device for automation of variations of the resistive load powered by solar cell. It is provided by a PIC16F877 running a computer program that we have developed on the basis of an algorithm according to the operation that we have set.

Research paper thumbnail of D Modeling of a Vertical Junction Polycrystalline Silicon Solar Cell Under Monochromatic Illumination in Frequency Modulation

This work present a theoretical 3D study of a vertical junction polycrystalline silicon solar cel... more This work present a theoretical 3D study of a vertical junction polycrystalline silicon solar cell illuminated by a monochromatic light and in frequency modulation. Based on the excess minority carrier’s density, the photocurrent density and the photovoltage are calculated. The solar cell dynamic impedance defined as the ratio of the photovoltage by the photocurrent, is then determined. The dynamic impedance module and phase are then studied and we exhibited the effects of grain size, grain boundary recombination velocity, junction recombination velocity and illumination wavelength.

Research paper thumbnail of AC Back Surface Recombination Velocity in n＋-p-p＋ Silicon Solar Cell under Monochromatic Light and Temperature

Journal of Electromagnetic Analysis and Applications

Excess minority carrier's diffusion equation in the base of monofaciale silicon solar cell under ... more Excess minority carrier's diffusion equation in the base of monofaciale silicon solar cell under frequency modulation of monochromatic illumination is resolved. Using conditions at the base limits involving recombination velocities Sf and Sb, respectively at the junction (n + /p) and back surface (p + /p), the AC expression of the excess minority carriers' density δ (T, ω) is determined. The AC density of photocurrent J ph (T, ω) is represented versus recombination velocity at the junction for different values of the temperature. The expression of the AC back surface recombination velocity Sb of minority carriers is deduced depending on the frequency of modulation, temperature, the electronic parameters (D (ω)) and the thickness of the base. Bode and Nyquist diagrams are used to analyze it.

Research paper thumbnail of Effet De Lirradiation Par Des Particules Chargees Sur Le Coefficient De Diffusion De La Base Dune Photopile Au Silicium (N+-P-P+) :Determination De Lepaisseur Optimum Sous Eclairement Monochromatique

International Journal of Approximate Reasoning, 2021

Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.)... more Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.) sur une photopile au silicium n+-p-p+ sous eclairement dune lumiere monochromatique est consideree dans la determination de lepaisseur optimum de la base. Des expressions de la vitesse de recombinaison a la face arriere (Sb1 intrinseque et Sb2 dependante de labsorption de la lumiere) sont comparees graphiquement, donnant les epaisseurs optimales necessaires pour lelaboration de photopilesau silicium devant fonctionner dans des cas de flux denergie dirradiation.

Research paper thumbnail of École de météorologie de l'espace - Université de Thiès du 15 au 25 octobre 2019

Research paper thumbnail of Minority Carriers Mobility Determination in the Base Region of N+-P-P+ Silicon Solar Cell Under Effects of Irradiation Flux, Temperature and Magnetic Field

International Journal of Advanced Research

The aim of this study is to show the influence of temperature on the relative value of the short-... more The aim of this study is to show the influence of temperature on the relative value of the short-circuit photocurrent density obtained from an n+-p-p+silicon solar cell front illuminated with modulated polychromatic light. The solar cell was already subjected to charged particules irradiation flux (Φp) and intensity (kl,) and remained under both magnetic field (B) and temperature (T). Thus, the graphical representation of the relative value of the short-circuit photocurrent density as a function of the square of the magnetic field (B) yields to determine the slope, which is related to the mobility of minority carriers in the base. It is obtained for a back surface field silicon solar cellunder both temperature and irradiation flux of charged particules.

Research paper thumbnail of Development of Battery Charge/Discharge Regulator for Photovoltaic Systems

This work present the development of a battery charge/discharge regulator for photovoltaic system... more This work present the development of a battery charge/discharge regulator for photovoltaic systems. The system is designed to operate at 12V and accept solar panel up to 100W. The charge/discharge regulator is an analog one with protections respectively against battery deep discharge and overcharge, thermal drift, short circuit and polarity inversion. The proposed regulator has been realized and tested in a solar home system (SHS) composed with AC lamps and DC/AC inverter

Research paper thumbnail of AC Induction Motor (ACIM) Control using a Digital Signal Controller (DSC)

Research Journal of Applied Sciences, Engineering and Technology, 2012

This study describes the use of a digital signal controller for an AC Induction Motor (ACIM) cont... more This study describes the use of a digital signal controller for an AC Induction Motor (ACIM) control through a three phase inverter. The main feature of the work is the simplicity of the hardware-only a 16 bit fixed point microcontroller with associated external conditioning integrated circuits. This lead to an extremely simple, low-cost and reliable system. A laboratory inverter prototype using a Microchip DSPIC33FJ128MC804 digital signal controller is developed and typical results are presented.

Research paper thumbnail of Experimental Device for Acquisition of Propertiesi- V and V (T) of the Solar By Automatic Change Operating Point

Abstract: Design and implementation of a device for automation of variations of the resistive loa... more Abstract: Design and implementation of a device for automation of variations of the resistive load powered by solar cell. It is provided by a PIC16F877 running a computer program that we have developed on the basis of an algorithm according to the operation that we have set. Index Terms—Solar cell, PWM, PIC16F877,

Research paper thumbnail of Effect of Irradiation on the Transient Response of a Silicon

Research paper thumbnail of Thermal behavior of a parallel vertical junction Silicon photocell in static regime by study of the series and shunt resistances under the effect of temperature

This work presents a theoretical study of a vertical parallel junction solar cell under multispec... more This work presents a theoretical study of a vertical parallel junction solar cell under multispectral illumination in steady state. Based on the diffusion equation, the excess minority carrier's density is expressed and the characteristic current-voltage, series resistance ant shunts resistance are determined. For all these parameters we showed the effect of external temperature.

Research paper thumbnail of Effet De Lirradiation Par Des Particules Chargees Sur Le Coefficient De Diffusion De La Base Dune Photopile Au Silicium (N+-P-P+) :Determination De Lepaisseur Optimum Sous Eclairement Monochromatique

International Journal of Advanced Research

Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.)... more Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.) sur une photopile au silicium n+-p-p+ sous eclairement dune lumiere monochromatique est consideree dans la determination de lepaisseur optimum de la base. Des expressions de la vitesse de recombinaison a la face arriere (Sb1 intrinseque et Sb2 dependante de labsorption de la lumiere) sont comparees graphiquement, donnant les epaisseurs optimales necessaires pour lelaboration de photopilesau silicium devant fonctionner dans des cas de flux denergie dirradiation.

Research paper thumbnail of Experimental Device for Acquisition of Propertiesi- V and V (T) of the Solar By Automatic Change Operating Point

Design and implementation of a device for automation of variations of the resistive load powered ... more Design and implementation of a device for automation of variations of the resistive load powered by solar cell. It is provided by a PIC16F877 running a computer program that we have developed on the basis of an algorithm according to the operation that we have set.

Research paper thumbnail of D Modeling of a Vertical Junction Polycrystalline Silicon Solar Cell Under Monochromatic Illumination in Frequency Modulation

This work present a theoretical 3D study of a vertical junction polycrystalline silicon solar cel... more This work present a theoretical 3D study of a vertical junction polycrystalline silicon solar cell illuminated by a monochromatic light and in frequency modulation. Based on the excess minority carrier’s density, the photocurrent density and the photovoltage are calculated. The solar cell dynamic impedance defined as the ratio of the photovoltage by the photocurrent, is then determined. The dynamic impedance module and phase are then studied and we exhibited the effects of grain size, grain boundary recombination velocity, junction recombination velocity and illumination wavelength.

Research paper thumbnail of AC Back Surface Recombination Velocity in n＋-p-p＋ Silicon Solar Cell under Monochromatic Light and Temperature

Journal of Electromagnetic Analysis and Applications

Excess minority carrier's diffusion equation in the base of monofaciale silicon solar cell under ... more Excess minority carrier's diffusion equation in the base of monofaciale silicon solar cell under frequency modulation of monochromatic illumination is resolved. Using conditions at the base limits involving recombination velocities Sf and Sb, respectively at the junction (n + /p) and back surface (p + /p), the AC expression of the excess minority carriers' density δ (T, ω) is determined. The AC density of photocurrent J ph (T, ω) is represented versus recombination velocity at the junction for different values of the temperature. The expression of the AC back surface recombination velocity Sb of minority carriers is deduced depending on the frequency of modulation, temperature, the electronic parameters (D (ω)) and the thickness of the base. Bode and Nyquist diagrams are used to analyze it.

Research paper thumbnail of Effet De Lirradiation Par Des Particules Chargees Sur Le Coefficient De Diffusion De La Base Dune Photopile Au Silicium (N+-P-P+) :Determination De Lepaisseur Optimum Sous Eclairement Monochromatique

International Journal of Approximate Reasoning, 2021

Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.)... more Linfluence de lirradiation de particules chargees (helium, electrons, protons, ions lourds, etc.) sur une photopile au silicium n+-p-p+ sous eclairement dune lumiere monochromatique est consideree dans la determination de lepaisseur optimum de la base. Des expressions de la vitesse de recombinaison a la face arriere (Sb1 intrinseque et Sb2 dependante de labsorption de la lumiere) sont comparees graphiquement, donnant les epaisseurs optimales necessaires pour lelaboration de photopilesau silicium devant fonctionner dans des cas de flux denergie dirradiation.

Research paper thumbnail of École de météorologie de l'espace - Université de Thiès du 15 au 25 octobre 2019

Research paper thumbnail of Minority Carriers Mobility Determination in the Base Region of N+-P-P+ Silicon Solar Cell Under Effects of Irradiation Flux, Temperature and Magnetic Field

International Journal of Advanced Research

The aim of this study is to show the influence of temperature on the relative value of the short-... more The aim of this study is to show the influence of temperature on the relative value of the short-circuit photocurrent density obtained from an n+-p-p+silicon solar cell front illuminated with modulated polychromatic light. The solar cell was already subjected to charged particules irradiation flux (Φp) and intensity (kl,) and remained under both magnetic field (B) and temperature (T). Thus, the graphical representation of the relative value of the short-circuit photocurrent density as a function of the square of the magnetic field (B) yields to determine the slope, which is related to the mobility of minority carriers in the base. It is obtained for a back surface field silicon solar cellunder both temperature and irradiation flux of charged particules.

Research paper thumbnail of Development of Battery Charge/Discharge Regulator for Photovoltaic Systems

This work present the development of a battery charge/discharge regulator for photovoltaic system... more This work present the development of a battery charge/discharge regulator for photovoltaic systems. The system is designed to operate at 12V and accept solar panel up to 100W. The charge/discharge regulator is an analog one with protections respectively against battery deep discharge and overcharge, thermal drift, short circuit and polarity inversion. The proposed regulator has been realized and tested in a solar home system (SHS) composed with AC lamps and DC/AC inverter