Download or read book Mod le distribu de transistors bipolaires pour la C A O des circuits en lectronique de puissance written by Pierre Gillet and published by . This book was released on 1995 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mod le facile d emploi de transistor bipolaire pour la CAO en lectronique de puissance written by Khadidja Benchaib and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE TRAITE DE LA MODELISATION DES TRANSISTORS BIPOLAIRES SILICIUM EN REGIME STATIQUE ET EN REGIME DYNAMIQUE. UN NOUVEAU MODELE UNIDIMENSIONNEL ET A CONSTANTE LOCALISEE DE TYPE COMPACT EST PROPOSE POUR SIMULER LE FONCTIONNEMENT EN COMMUTATION DES TRANSISTORS BIPOLAIRES DE PUISSANCE. CE MODELE EST A LA FOIS SIMPLE ET FACILE A METTRE EN UVRE PAR UN CONCEPTEUR DE CIRCUIT. SON UTILISATION EST TRES AVANTAGEUSE, CAR IL NE FAIT INTERVENIR QUE PEU DE PARAMETRES QUI PEUVENT, AVEC DES MOYENS INFORMTIQUES LEGERS, FACILEMENT ETRE IDENTIFIES A PARTIR DES FEUILLES DE SPECIFICATION DES FABRICANTS DE COMPOSANTS. LE DIMENSIONNEMENT DES ELEMENTS DU SCHEMA EQUIVALENT SIMPLIFIE STATIQUE EST REALISE A PARTIR DE L'EXPRESSION DU GAIN EN COURANT COLLECTEUR. EN FONCTIONNEMENT DYNAMIQUE, LE MODELE EST COMPLETE PAR UNE CAPACITE BASE-EMETTEUR EQUIVALENTE, REPRESENTANT LA CHARGE STOCKEE DANS LA BASE ELECTRIQUE. LE MODELE FINAL, EST ALORS BIEN ADAPTE A L'ETUDE ET A LA CARACTERISATION DU TRANSISTOR BIPOLAIRE DE PUISSANCE ET PERMET D'EN SIMULER LE FONCTIONNEMENT EN COMMUTATION. LA BONNE CONCORDANCE ENTRE LES COMPORTEMENTS MESURES ET SIMULES DES ECHANTILLONS TESTES, JUSTIFIE L'APPROCHE CHOISIE

Download or read book Mod le distribu de transistor bipolaire pour la C A O des circuits en lectronique de puissance written by Pierre Gillet (ingènieur) and published by . This book was released on 1995 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE EST CONSACRE A LA PRISE EN COMPTE DE LA NATURE DISTRIBUEE DE LA DYNAMIQUE DES CHARGES, DANS LA MODELISATION DU TRANSISTOR BIPOLAIRE DE PUISSANCE DESTINE A LA CONCEPTION ASSISTEE PAR ORDINATEUR DES CIRCUITS. POUR CELA, NOUS PROPOSONS UNE METHODE DE RESOLUTION ANALOGIQUE DE L'EQUATION DE DIFFUSION AMBIPOLAIRE DANS LA ZONE DE STOCKAGE DE CHARGE, BASEE SUR UNE REPRESENTATION SPECTRALE DE LA REPARTITION DES PORTEURS. CETTE METHODE NOUS CONDUIT A TRAITER UN SYSTEME DE N EQUATIONS DIFFERENTIELLES DU PREMIER ORDRE, QUI PEUT ETRE TRADUIT SOUS FORME DE CIRCUIT ELECTRIQUE EQUIVALENT DU TYPE LIGNE RC SERIE. CES LIGNES RC, A PARAMETRES VARIABLES DANS LE TEMPS, REPRESENTENT LE NOYAU DE CALCUL DU MODELE A PARTIR DUQUEL NOUS DEDUISONS LES GRANDEURS PHYSIQUES INTERNES RESPONSABLES DU COMPORTEMENT EXTERNE DU DISPOSITIF. CE NOYAU EST COMPLETE PAR LA REPRESENTATION DES REGIONS DE BASE PHYSIQUE ET D'EMETTEUR TRAITEES DE MANIERE LOCALISEE, AINSI QUE L'INFLUENCE DU COURANT DE DEPLACEMENT, DE LA CHARGE DES PORTEURS EN TRANSIT ET DU PROFIL DE DOPAGE. ENFIN, UNE COMPARAISON SIMULATION EXPERIENCE DANS UN ENVIRONNEMENT CIRCUIT SIMPLE MAIS REALISTE, METTANT EN EVIDENCE LES INTERACTIONS COMPOSANT-CIRCUIT, MONTRE LE BIEN FONDE DE CETTE APPROCHE

Download or read book GRAPHE DE LIENS DU TRANSISTOR BIPOLAIRE DE PUISSANCE EN VUE DE LA SIMULATION DE CIRCUITS written by Bruno Allard and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA CAO EN ELECTRONIQUE DE PUISSANCE EXIGE NOTAMMENT QUE LA SIMULATION D'UN CIRCUIT PREDISE, AVEC PRECISION, LES CONTRAINTES ELECTRIQUES (ET THERMIQUES) ENDUREES PAR LES DISPOSITIFS A SEMICONDUCTEUR, AU COURS DES COMMUTATIONS. LES MODELES LES PLUS UTILISES ACTUELLEMENT (GUMMEL-POON, SPICE) SE MONTRENT INSUFFISANTS POUR DE TELLES SIMULATIONS, A CAUSE DE LA REPRESENTATION TROP EMPIRIQUE DU PHENOMENE DE SATURATION. LA SATURATION EST LA CONSEQUENCE DE LA PRESENCE D'UNE ZONE NEUTRE EN FORTE INJECTION DANS LE COLLECTEUR. POUR MODELISER CORRECTEMENT CE PHENOMENE, LE TRAVAIL PRESENTE FAIT APPEL A DES TECHNIQUES DE L'ANALYSE FONCTIONNELLE (APPROXIMATION INTERNE), ET DE LA THEORIE DES SYSTEMES (VARIABLES D'ETAT, GRAPHES DE LIENS). LE MODELE OBTENU EST UN GRAPHE DE LIENS SUPERPOSABLE A LA STRUCTURE GEOMETRIQUE DU DISPOSITIF, ET SUIT FIDELEMENT LES PHENOMENES PHYSIQUES INTERNES AU COMPOSANT. EN OUTRE, CONTRAIREMENT AU MODELE DE GUMMEL-POON, LES PARAMETRES SONT PEU NOMBREUX, TOUS SIGNIFICATIFS, ET CORRESPONDENT A LA SEULE DESCRIPTION TECHNOLOGIQUE DU DISPOSITIF. ENFIN, LES RESULTATS DE SIMULATION SONT TRES CONFORMES A L'EXPERIENCE, BIEN MEILLEURS QUE CEUX PRODUITS PAR SPICE DANS LE CADRE DE LA SATURATION, AVEC UN COUT DE CALCUL EQUIVALENT

Download or read book Power Electronics Semiconductor Devices written by Robert Perret and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book relates the recent developments in several key electrical engineering R&D labs, concentrating on power electronics switches and their use. The first sections deal with key power electronics technologies, MOSFETs and IGBTs, including series and parallel associations. The next section examines silicon carbide and its potentiality for power electronics applications and its present limitations. Then, a dedicated section presents the capacitors, key passive components in power electronics, followed by a modeling method allowing the stray inductances computation, necessary for the precise simulation of switching waveforms. Thermal behavior associated with power switches follows, and the last part proposes some interesting prospectives associated to Power Electronics integration.

Download or read book Mod le lectrothermique distribu de transistor bipolaire h t rojonction written by Marie Anne Pérez and published by . This book was released on 1998 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE TRAVAIL CONSTITUE UNE NOUVELLE APPROCHE SUR LA MODELISATION DE TRANSISTORS BIPOLAIRES A HETEROJONCTION ET SON UTILISATION POUR LA CONCEPTION NON LINEAIRE D'AMPLIFICATEURS DE PUISSANCE A HAUT RENDEMENT. UN RECAPITULATIF DE LA TECHNIQUE DE MODELISATION DE TBH DEVELOPPEE A L'IRCOM EST EXPOSE. LA NOUVELLE APPROCHE CONCERNE LA DISTRIBUTION THERMIQUE DU MODELE ET SA VALIDATION EN PETIT SIGNAL. CETTE DISTRIBUTION THERMIQUE NOUS A PERMIS D'ETUDIER LE PHENOMENE DE CRUNCH PRESENT DANS LES TBH MULTIDOIGTS. NOUS AVONS PU SIMULER LES CONSEQUENCES DU CRUNCH EN COMPORTEMENT STATIQUE ET DYNAMIQUE. CE MODELE DE TBH NOUS A AUSSI PERMIS D'ABORDER UNE CONCEPTION D'AMPLIFICATEUR DE PUISSANCE OPTIMISE EN TEMPERATURE. UN AMPLIFICATEUR EN BANDE X A ETE CONCU ET REALISE. UNE ANALYSE DE STABILITE A ETE UTILISEE POUR PREDIRE LES PROBLEMES D'OSCILLATIONS. LES MESURES EN BOITIER DE CET AMPLIFICATEUR EN PETIT SIGNAL ET EN PUISSANCE NOUS PERMETTENT DE VALIDER LA METHODOLOGIE DE CONCEPTION AINSI QUE LE MODELE ELECTROTHERMIQUE UTILISE.

Download or read book MODELE ELECTROTHERMIQUE UNIDIMENSIONNEL DU TRANSISTOR BIPOLAIRE DE PUISSANCE POUR LA SIMULATION DE CIRCUITS written by THIERRY.. MAUREL and published by . This book was released on 1995 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS AVONS DEVELOPPE UN MODELE ELECTROTHERMIQUE UNIDIMENSIONNEL DU TRANSISTOR BIPOLAIRE DE PUISSANCE DANS LE SIMULATEUR DE CIRCUITS SABER. AU NIVEAU ELECTRIQUE, LA DYNAMIQUE DE LA CHARGE STOCKEE DANS LE COLLECTEUR, PREPONDERANTE POUR CE TYPE DE COMPOSANT, EST PRISE EN COMPTE DE FACON NON QUASI-STATIQUE COMME UNE VARIABLE D'ETAT DU MODELE POUR DEVELOPPER LES SOLUTIONS CORRESPONDANT AU MODE STATIQUE ET AUX DIFFERENTS TRANSITOIRES D'OUVERTURE ET DE FERMETURE DU TRANSISTOR. LE MODELE THERMIQUE PREND EN COMPTE LES ECHANGES DE CHALEUR ENTRE LA PUCE DE SILICIUM ET SON ENVIRONNEMENT. DEUX VERSIONS DU MODELE THERMIQUE ONT ETE DEVELOPPEES: LA PREMIERE EST UNIDIMENSIONNELLE ET UTILISE L'ANALOGIE THERMIQUE-ELECTRIQUE ET LES NOTIONS DE RESISTANCE THERMIQUE ET DE CAPACITE THERMIQUE. LA DEUXIEME EST DEDIEE AUX STRUCTURES BIPOLAIRES ET UTILISE UN CALCUL A DEUX DIMENSIONS DE LA TEMPERATURE DANS LE SILICIUM POUR METTRE EN EVIDENCE L'APPARITION D'UN GRADIENT DE TEMPERATURE LONGITUDINAL EN SURFACE DE PUCE POUR LES FORTES PUISSANCES DISSIPEES. LE MODELE COMPLET DU TRANSISTOR PREND EN COMPTE LE COUPLAGE ELECTROTHERMIQUE TEMPERATURE-PUISSANCE DISSIPEE PAR L'INTERMEDIAIRE DE LOIS DE DEPENDANCE EN TEMPERATURE AFFECTEES AUX PARAMETRES PHYSIQUES DU SILICIUM. LE MODELE EST VALIDE PAR LA CARACTERISATION DE PLUSIEURS TRANSISTORS BIPOLAIRES DE PUISSANCE DU COMMERCE, TANT AU NIVEAU DE SON FONCTIONNEMENT PUREMENT ELECTRIQUE EN MODE STATIQUE ET TRANSITOIRE (SANS AUTOECHAUFFEMENT) QUE DE SON COMPORTEMENT LORSQUE LE TRANSISTOR EST SOUMIS A DE FORTS AUTOECHAUFFEMENTS

Download or read book MODELE ELECTRO THERMIQUE UNIDIMENSIONNEL DU TRANSISTOR BIPOLAIRE A GRILLE ISOLEE IGBT POUR LA SIMULATION DE CIRCUITS DE PUISSANCE written by ADEL.. AMIMI and published by . This book was released on 1997 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS LE DOMAINE DE L'ELECTRONIQUE DE PUISSANCE, OU L'ENVIRONNEMENT ET LE MODE DE FONCTIONNEMENT DU COMPOSANT JOUENT UN ROLE PRIMORDIAL, NOUS CONSTATONS QUE LES ASPECTS THERMIQUES DOIVENT ETRE EVALUES DE LA MEME MANIERE QUE LES ASPECTS STRICTEMENT ELECTRIQUES. CELA SUPPOSE ENTRE AUTRES QUE LA TEMPERATURE INTERNE DES COMPOSANTS DOIT POUVOIR EVOLUER COMME TOUTES LES GRANDEURS ELECTRIQUES. DANS CE CONTEXTE, NOUS AVONS DEVELOPPE UN MODELE ANALYTIQUE DU TRANSISTOR BIPOLAIRE A GRILLE ISOLEE (IGBT) PRENANT EN COMPTE LES INTERACTIONS ELECTRO-THERMIQUES DANS LE COMPOSANT, EN ASSOCIANT AU MODELE ELECTRIQUE DU COMPOSANT UN RESEAU THERMIQUE. POUR CELA, DEUX SOLUTIONS DE COMPLEXITE DIFFERENTES ONT ETE ENVISAGEES POUR L'ELABORATION DU MODELE THERMIQUE. LA PREMIERE APPROCHE (CELLULAIRE) EST BASEE SUR L'ANALOGIE ELECTRIQUE-THERMIQUE. EN EFFET, LA PROPAGATION DU FLUX DE CHALEUR DANS LE COMPOSANT EST MODELISEE PAR UN RESEAU CELLULAIRE RTH(I) - CTH(I) DONT LES CARACTERISTIQUES SONT DETERMINEES A PARTIR DE L'IMPEDANCE THERMIQUE TRANSITOIRE ZTH DU COMPOSANT. LA SECONDE APPROCHE (DITE MIXTE), FONDEE SUR LA RESOLUTION A UNE DIMENSION DE L'EQUATION DE DIFFUSION DE LA CHALEUR, UTILISE UN CALCUL PLUS PRECIS DE LA TEMPERATURE DANS LA COUCHE DE SILICIUM, TOUT EN CONSERVANT UNE REPRESENTATION A BASE DE CELLULES RTH-CTH POUR L'ENSEMBLE DU BOITIER ET DE L'ENVIRONNEMENT. LE MODELE ELECTRO-THERMIQUE AINSI DEVELOPPE EST IMPLANTE EN LANGAGE MAST DANS LE SIMULATEUR DE CIRCUITS SABER.

Download or read book Integration d un modele physique de transistor bipolaire a heterojonction dans l environnement de la C A O non lineaire des circuits monolithiques microondes written by Raphaël Sommet and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Download or read book Lightning Protection Guidelines for Aerospace Vehicles written by C. C. Goodloe and published by . This book was released on 1999 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modern Power Devices written by B. Jayant Baliga and published by Wiley-Interscience. This book was released on 1987-03-10 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in a tutorial form, the text supplies in-depth the physics, design, and fabrication technology for power devices. Each chapter includes a discussion of the basic concepts of device operation and their electrical characteristics, a detailed analysis of the device physics, and the technology of fabrication. Extensive analytical solutions are used to enable the reader to obtain an understanding of the physics.

Download or read book Local Approximation Techniques in Signal and Image Processing written by Vladimir I︠A︡kovlevich Katkovnik and published by SPIE-International Society for Optical Engineering. This book was released on 2006 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with a wide class of novel and efficient adaptive signal processing techniques developed to restore signals from noisy and degraded observations. These signals include those acquired from still or video cameras, electron microscopes, radar, X-rays, or ultrasound devices, and are used for various purposes, including entertainment, medical, business, industrial, military, civil, security, and scientific. In many cases useful information and high quality must be extracted from the imaging. However, often raw signals are not directly suitable for this purpose and must be processed in some way. Such processing is called signal reconstruction. This book is devoted to a recent and original approach to signal reconstruction based on combining two independent ideas: local polynomial approximation and the intersection of confidence interval rule.

Download or read book Handbook of Aerospace Electromagnetic Compatibility written by Dr. Reinaldo J. Perez and published by John Wiley & Sons. This book was released on 2018-11-30 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive resource that explores electromagnetic compatibility (EMC) for aerospace systems Handbook of Aerospace Electromagnetic Compatibility is a groundbreaking book on EMC for aerospace systems that addresses both aircraft and space vehicles. With contributions from an international panel of aerospace EMC experts, this important text deals with the testing of spacecraft components and subsystems, analysis of crosstalk and field coupling, aircraft communication systems, and much more. The text also includes information on lightning effects and testing, as well as guidance on design principles and techniques for lightning protection. The book offers an introduction to E3 models and techniques in aerospace systems and explores EMP effects on and technology for aerospace systems. Filled with the most up-to-date information, illustrative examples, descriptive figures, and helpful scenarios, Handbook of Aerospace Electromagnetic Compatibility is designed to be a practical information source. This vital guide to electromagnetic compatibility: • Provides information on a range of topics including grounding, coupling, test procedures, standards, and requirements • Offers discussions on standards for aerospace applications • Addresses aerospace EMC through the use of testing and theoretical approaches Written for EMC engineers and practitioners, Handbook of Aerospace Electromagnetic Compatibility is a critical text for understanding EMC for aerospace systems.

Download or read book Proof Theory and Automated Deduction written by Jean Goubault-Larrecq and published by Springer Science & Business Media. This book was released on 2001-11-30 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in computer applications has led to a new attitude to applied logic in which researchers tailor a logic in the same way they define a computer language. In response to this attitude, this text for undergraduate and graduate students discusses major algorithmic methodologies, and tableaux and resolution methods. The authors focus on first-order logic, the use of proof theory, and the computer application of automated searches for proofs of mathematical propositions. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book The Challenge of Change written by Rebecca Hampl and published by Christian Faith Publishing, Inc.. This book was released on 2022-08-01 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the age of twenty-eight, Marty Ellis is still a bachelor who graduated with a major in journalism and a minor in photojournalism. He enjoys his life with various girlfriends while knocking back drinks in bars, going out to dinner, and rolling in the sheets. Yet inevitably, he grows tired of these surface-level-only feelings, shells out his standard goodbye speech, and moves on. However, using only his body and saying sayonara to his love lifeaEUR(tm)s revolving door is not how he wants to live for the rest of his life. How will he ever know what true love feels like if he doesnaEUR(tm)t ascertain how to actually give it? In what way will he begin to be able to discover the whole package that runs beneath the surface of a woman? Unexpectedly, Marty is blindsided when his best friend invites him to leave New Jersey for a weekend trip. Lauren Morris is a beautiful thirty-two-year-old woman who, after graduating at the age of twenty-one with a masteraEUR(tm)s degree in business, took a huge leap of faith and purchased an old farmhouse in Vermont. After ten years of hard work and sweat equity, she has transformed it into a beautiful inn that has become extremely lucrative. But winter is fast approaching, and she is dreading that feeling of loneliness that is connected to darkened afternoons and long, empty nights. Will a man ever enter her life? One that she could love and perhaps be with until death due them part? After meeting Marty, Lauren begins to consider if this man might be the one she has been waiting for her whole life. But then again, she is older than he is; long distance relationships hardly ever work out; and sudden heartbreaking unforeseen events rock both of their worlds. And if they do fall in love, which one of them will have to make the ultimate sacrifice and give up what theyaEUR(tm)ve worked so hard to achieve in order to be together? With so many changes causing so many challenges, will they get through them together, or will one push the other away?

Download or read book Power Semiconductor Drives written by P V Rao and published by . This book was released on 2017-02 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Semiconductor devices play a vital role in electrical power systems and are used widely in transmission, distribution and control of electric power. It deals with the fundamentals of machines, converters and control of machines with solid state devices. It is divided into eight chapters covering d.c. motor, single and three phases controlled rectifiers, d.c. motor driver by dual converter, four quadrant drive, d.c. choppers, induction motor with VSI, CSI and cycloconverters, control of induction motors and control of synchronous motors. Features * Each topic is explained lucidly so that the student can understand every aspect of the drive system easily. * Number of worked-out examples are given at the end of each chapter. * A number of quiz type questions are also given with answers after each chapter.