Design and Study of a Micro Solar Converter Connected to an Autonomous Photovoltaic System

Mustapha Belhabib,Azzedine Hamid,Abderrahim Mokhefi,Vincent Bley,Tahar Alili,Fatima Zohra Medjaoui 한국전기전자재료학회 2023 Transactions on Electrical and Electronic Material Vol.24 No.5

In this study we presented the design and modeling of a DC–DC two boost micro-converter in parallel, containing two micro-coils identical planar circular spiral, which is part of a stand-alone photovoltaic system. This micro-converter is controlled by an MPPT command (incrementing conductance) which will ensure that the maximum power supplied by the photovoltaic module is maintained. This design required an in-depth study of each component of the photovoltaic system: The photovoltaic module, the micro-converter, the micro-coils and the MPPT control.

Design and Integration of Planar Inductances on PCB Application Passive Type Filters

Nisrine Senhadji,Azzedine Hamid,Vincent Bley,Thierry Leby 한국전기전자재료학회 2020 Transactions on Electrical and Electronic Material Vol.21 No.2

This paper is a synthesis of work encompassing simulation and experimental results aimed at designing, manufacturing and characterizing various fi xed and variable width circular and square spiral inductance topologies deposited on a PCB-FR4 substrate. These inductors will compose fi lters for diff erent applications of electronics and low power electronics. These prototypes of planar inductances were made at LAPLACE laboratory in Toulouse.

Conception and Manufacturing of a Planar Inductance on NiFe Substrate

Fatima Zohra Medjaoui,Azzedine Hamid,Yacine Guettaf,Pierre Spiteri,Vincent Bley 한국전기전자재료학회 2019 Transactions on Electrical and Electronic Material Vol.20 No.3

The present paper presents the study, realization and characterization of a micro-coil sandwiched using a relatively thick layer of magnetic material. The integration of this micro-coil with as a starting point a set of specifi cations, requires the following steps: Identifi cation and validation of geometric parameters for the calculation of electrical parameters. Losses dissipated as heat in these electronic systems are becoming a major concern for designers. This prompted to take into account the thermal design. The results obtained have allowed to realize a micro-coil micro square planar coil sandwiched shaped between two magnetic materials. Several carried measures focused on the inductance and resistance which are related to the frequency f , the module and phase of the impedance, and the gap g . The operation of these data is used to trace the evolution of theinductance value L s , the quality factor Q and the resistor R s as a function of frequency.

Conception and Manufacturing of a Planar Inductance on NiFe Substrate

Fatima Zohra Medjaoui,Azzedine Hamid,Yacine Guettaf,Pierre Spiteri,Vincent Bley 한국전기전자재료학회 2019 Transactions on Electrical and Electronic Material Vol.20 No.2

The present paper presents the study, realization and characterization of a micro-coil sandwiched using a relatively thick layer of magnetic material. The integration of this micro-coil with as a starting point a set of specifi cations, requires the following steps: Identifi cation and validation of geometric parameters for the calculation of electrical parameters. Losses dissipated as heat in these electronic systems are becoming a major concern for designers. This prompted to take into account the thermal design. The results obtained have allowed to realize a micro-coil micro square planar coil sandwiched shaped between two magnetic materials. Several carried measures focused on the inductance and resistance which are related to the frequency f , the module and phase of the impedance, and the gap g . The operation of these data is used to trace the evolution of theinductance value L s , the quality factor Q and the resistor R s as a function of frequency.

Design and Modeling of Octagonal Planar Inductor and Transformer in Monolithic Technology for RF Systems

Derkaoui Mokhtaria,Benhadda Yamina,Hamid Azzedine,Temmar Abdelkader 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.3

This paper presents the design and modeling of planar inductor and transformer for their integration in a Forward converter. The windings are of octagonal spiral planar topology. Basing on Wheeler method, we evaluate the inductance values of planar coils. All parasitic eff ects generated by stacking of diff erent material layers are summarized perfectly in the π-electrical model of both on chip inductor and transformer. The electromagnetic simulation, by using COMSOL Multiphysics 5.3 software, illustrates the distribution of magnetic fi eld lines, the current density and the temperature distribution in our integrated micro coils. To validate the diff erent geometric and electrical parameters values, we have simulated the circuit of the Forward converter containing the π-electrical circuit of on chip integrated inductor and transformer, using the software TINA 9.0.

Design and Implementation of Inductors with Variable Conductor Width Integrated in a Boost Micro Converter

Hayet Kharbouch,Yacine Guettaf,Azzedine Hamid,Vincent Bley,Yamina Benhadda 한국전기전자재료학회 2021 Transactions on Electrical and Electronic Material Vol.22 No.4

The aim of this paper is to present a work strategy uniting simulation and experimental results in order to optimize the design of two types of circular spiral inductors: standard and variable width spiral for the purpose of realize them. These inductors will be integrated in a boost micro converter. At first, we present the geometrical and electrical modelling of these inductors. We propose a comparison between the electrical and the electromagnetic behaviour of a standard and a tapered coil at 3 MHz. An application of our components in a boost micro converter is presented. The results presented in this article are based on the following characteristics of micro converter: output voltage 3 V, maximum current 5 A, output power 3.75 W, frequency of operation 3 MHz. The schematic simulation allows to explicit the behaviour of the inductor and the micro converter by analysing the wave’s form of currents and voltage. The prototyping process and the characterization of inductors took place at LAPLACE laboratory, Team MDCE, Toulouse, France.

Magnetothermal behavior of a planar coil

Fatima Zohra Medjaoui,Abderrahim Mokhfi,Yacine Guettaf,Pierre Spetiri,Azzedine Hamid 한국전기전자재료학회 2022 Transactions on Electrical and Electronic Material Vol.23 No.2

The world of microelectronics is punctuated by the permanent race for integration, in order to be able to reduce the sizes, costs and power consumption of products. The largest discrete components which are seek today are passive elements, present in an increasingly important proportion. In circuits (resistors, inductors and capacitors). The scientific research aimed at highlighting the magnetothermal behavior of this type of component shows a certain deficit. In this regard, this paper presents an investigation by way of numerical simulation of the magnetothermic behavior, allowing the enhancement of the design of a square planar coil sandwiched between two magnetic materials. It is intended to be inserted in a micro-converter of Buck type. The phenomenon studied is governed by Maxwell’s equations coupled with the heat equation, which are solved by the finite element method. The heat transfer processes by conduction and by convection are taken into account in steady state. Gap effects are considered as a control parameter on the magnetic, electrical and thermal behaviours, in order to determine it’s the optimal value allowing to have the best inductor operation while having an optimum cooling ratio. The materials composing this structure do not react in the same way to temperature variations, which will generate stresses in the materials that compose it and render it non-functional. The numerical simulation results show the distribution of the magnetic field, the role of the different materials constituting the substrate and the temperature distribution. On the other hand, they made it possible to optimize the gap value, which is considered as an important parameter during the dimensioning of the microcoil to determine the optimal geometric parameters.

Dimensioning and Realization of an LTCC Multilayer Capacitor for Energy Conversion

Tekkouk Adda Benattia,Rabia Melati,Hadj Larbi Beklaouz,Hamid Azzedine,Vincent Bley,Celine Combettes,Mohammed Ridha Benzidane 한국전기전자재료학회 2020 Transactions on Electrical and Electronic Material Vol.21 No.6

In this paper, we present the dimensioning as well as the thermal and electrostatic modelling of a multilayer capacitor lowtemperature co-fi red ceramic (LTCC) to insert it in a Buck converter. We also present the diff erent stages of the realization of the LTCC capacitor. Our aims are volume and weight reduction, good frequency behaviour, low values of the series inductance and series resistance, and small ripples of the output voltage. The results obtained after the realization are satisfactory and encouraging, with a 92% reduction in volume and 99% in the surface area. To validate the correct operation of the capacitor, we used the PSIM simulation software to compare the voltage and current waveforms of the outputs of the Buck converter with a perfect capacitor and others with LTCC capacitor. COMSOL multiphysics simulation software allowed us to determine the operating temperature of the LTCC capacitor and to validate its electrostatic behaviour (distribution of electrical potential, of electrical fi eld and electrical current density). The multilayer capacitor is manufactured in the LAPLACE laboratory at Paul Sabatier University.