Download or read book Contribution l tude des convertisseurs directs de fr quence transistors de puissance written by Arnaldo Perin and published by . This book was released on 1984 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conception et réalisation d'un nouveau type de convertisseur direct de fréquence, alimenté directement par un alternateur à vitesse variable, assimilé à une source de courant. Le convertisseur doit fournir, après filtrage, une tension d'amplitude et de fréquence fixes. La modulation utilisée est le résultat d'une optimisation des largeurs d'impulsions permettant de régler l'amplitude et la fréquence du courant de sortie du convertisseur, tout en minimisant les harmoniques de rang bas qui sont difficiles à filtrer. Dans la maquette une commande numérique impose un motif de commutation préalablement optimisé. Problèmes concernant la commutation des interrupteurs bidirectionnels nécessaires à ce type de convertisseur

Download or read book Contribution l tude des convertisseurs direct de fr quence transistors de puissance written by Arnaldo Perin and published by . This book was released on 1984 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soft Commutation written by Y. Cheron and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author gives a thorough explanation of soft commutation making use of the concept of duality to explain the principles of the technique and to place it in context in the field of power electronics.

Download or read book IECON 98 written by IEEE Industrial Electronics Society. Conference and published by . This book was released on 1998 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution l tude des convertisseurs continu continu en alternatif transistors written by Henri Cammas and published by . This book was released on 1974 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Contribution au d veloppement de convertisseurs type MLI transistors de puissance refroidis l eau written by Antoine LELLIG and published by . This book was released on 1991 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CONTRIBUTION AUX CARACTERISATIONS ELECTRIQUES ET THERMIQUES DES TRANSISTORS DE PUISSANCE A GRILLE ISOLEE written by EBRAHIM.. FARJAH and published by . This book was released on 1994 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'IGBT EST BIEN ADAPTE AUX APPLICATIONS DE MOYENNE PUISSANCE. LA TENDANCE ACTUELLE EST L'AMELIORATION DE SES POSSIBILITES TANT AU NIVEAU DE LA TENSION ET DU COURANT ADMISSIBLES QU'AU NIVEAU DE LA FREQUENCE DE FONCTIONNEMENT. CE TRANSISTOR DANS UN AVENIR TRES PROCHE DEVRAIT REMPLACER BON NOMBRE DE COMPOSANTS. UNE MEILLEURE CONNAISSANCE DE L'IGBT PASSE PAR SA CARACTERISATION ELECTRIQUE ET THERMIQUE PRECISE, AFIN D'AMELIORER LA CONCEPTION DES CONVERTISSEURS MODERNES DE L'ELECTRONIQUE DE PUISSANCE. DANS CE TRAVAIL, NOUS AVONS EFFECTUE UNE ETUDE DETAILLEE DES DIFFERENTES METHODES DE CARACTERISATION DES COMPOSANTS SEMICONDUCTEURS ET PLUS PARTICULIEREMENT DE L'IGBT. POUR ARRIVER A CE BUT, NOUS AVONS DEVELOPPE ET/OU UTILISE DES PROGRAMMES DE CALCUL ET DES LOGICIELS AYANT TRAIT AUX DOMAINES ELECTRIQUE ET THERMIQUE. DANS CERTAINS CAS, UN MODELE COMPORTEMENTAL, OU LE COMPOSANT EST CONSIDERE COMME UNE BOITE NOIRE EST ETUDIE PAR SES ENTREES ET SORTIES, EST SUFFISANT. FINALEMENT, COMME LES CARACTERISTIQUES ELECTRIQUES ET THERMIQUES DE L'IGBT SONT FORTEMENT COUPLEES, NOUS AVONS ETUDIE PLUSIEURS MANIERES DE PRENDRE EN COMPTE CE PHENOMENE DANS DES OUTILS DE SIMULATION

Download or read book CONTRIBUTION A L ETUDE DU VIEILLISSEMENT DES TRANSISTORS DE PUISSANCE BIPOLAIRES A GRILLE ISOLEE IGBT ET AU DIAGNOSTIC DES CONVERTISSEURS STATIQUES written by AREZKY.. BOUZOURENE and published by . This book was released on 2000 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE VIEILLISSEMENT DES INTERRUPTEURS ELECTRONIQUES CONDUIT, A TERME, A LA DEGRADATION DE LEUR FONCTIONNEMENT ENTRAINANT DES REPERCUSSIONS GRAVES ET SOUVENT DESTRUCTIVES SUR LEUR ENVIRONNEMENT (SYSTEME). IL EST DONC IMPORTANT, AUSSI BIEN POUR LE CONCEPTEUR QUE POUR L'UTILISATEUR, DE CONNAITRE L'AVOLUTION DE CE PHENOMENE DANS LE TEMPS AFIN DE PARER AUX DEFAILLANCES QU'IL GENERE. EN PARTANT DE LA STRUCTURE PHYSIQUE DU TRANSISTOR DE PUISSANCE IGBT, NOUS AVONS MIS AU POINT TROIS BANCS D'ESSAIS QUI ACCELERENT LE VIEILLISSEMENT DE CE TRANSISTOR PARTICULIER A TECHNOLOGIE D'INTEGRATION HYBRIDE. APRES ETUDE, NOUS AVONS MIS EN EVIDENCE, DANS UNE PREMIERE ETAPE, LA POSSIBILITE DE SUIVRE L'ETAT DE VIEILLISSEMENT DU COMPOSANT A TRAVERS L'EVOLUTION DE SES PARAMETRES ELECTRIQUES ; PUIS, DANS UNE SECONDE ETAPE, NOUS AVONS ANALYSE L'INFLUENCE D'UN IGBT VIEILLI SUR UN CONVERTISSEUR UNICELLULAIRE OU LA PRESENCE DE DECALAGE DES INSTANTS DE COMMUTATION A ETE DETECTEE. CE RESULTAT PEUT SERVIR DE CRITERE A PARTIR DUQUEL UN RISQUE DE DEFAILLANCE PEUT SURGIR DANS LES SYSTEMES MULTICELLULAIRES DE TYPE ONDULEUR. QUANT A LA TROISIEME ETAPE, ELLE EST CONSACREE A LA MODELISATION DE L'EVOLUTION DES PRINCIPAUX INDICATEURS DE VIEILLISSEMENT EN FONCTION DES CONDITIONS ET DU TEMPS D'UTILISATION DES TRANSISTORS. UN PREMIER MODELE MATHEMATIQUE, BASE A LA FOIS SUR LA THEORIE ET LES RESULTATS EXPERIMENTAUX, DONNANT LA CROISSANCE DE LA TENSION DE SEUIL EN FONCTION DE L'ETAT DE VIEILLISSEMENT DES IGBT EST PRESENTE ET UNE DISCUSSION SUR LE DIAGNOSTIC ET LA SURVEILLANCE DE CE PHENOMENE POUR CE TYPE DE TRANSISTOR PARTICULIER EST RAPPORTEE DANS CE MEMOIRE.

Download or read book Soft Commutation written by Y. Cheron and published by Springer Science & Business Media. This book was released on 1992-05-31 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author gives a thorough explanation of soft commutation making use of the concept of duality to explain the principles of the technique and to place it in context in the field of power electronics.

Download or read book Power Electronics Handbook written by Muhammad H. Rashid and published by Elsevier. This book was released on 2010-07-19 with total page 1189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power electronics, which is a rapidly growing area in terms of research and applications, uses modern electronics technology to convert electric power from one form to another, such as ac-dc, dc-dc, dc-ac, and ac-ac with a variable output magnitude and frequency. Power electronics has many applications in our every day life such as air-conditioners, electric cars, sub-way trains, motor drives, renewable energy sources and power supplies for computers. This book covers all aspects of switching devices, converter circuit topologies, control techniques, analytical methods and some examples of their applications. * 25% new content* Reorganized and revised into 8 sections comprising 43 chapters* Coverage of numerous applications, including uninterruptable power supplies and automotive electrical systems* New content in power generation and distribution, including solar power, fuel cells, wind turbines, and flexible transmission

Download or read book Ultra Low Noise CMOS Image Sensors written by Assim Boukhayma and published by Springer. This book was released on 2017-11-28 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis provides a thorough noise analysis for conventional CIS readout chains, while also presenting and discussing a variety of noise reduction techniques that allow the read noise in standard processes to be optimized. Two physical implementations featuring sub-0.5-electron RMS are subsequently presented to verify the proposed noise reduction techniques and provide a full characterization of a VGA imager. Based on the verified noise calculation, the impact of the technology downscaling on the input-referred noise is also studied. Further, the thesis covers THz CMOS image sensors and presents an original design that achieves ultra-low-noise performance. Last but not least, it provides a comprehensive review of CMOS image sensors.

Download or read book Continuous Time Sigma Delta A D Conversion written by Friedel Gerfers and published by Springer Science & Business Media. This book was released on 2006-02-27 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sigma-delta A/D converters are a key building block in wireless and multimedia applications. This comprehensive book deals with all relevant aspects arising during the analysis, design and simulation of the now widespread continuous-time implementations of sigma-delta modulators. The results of several years of research by the authors in the field of CT sigma-delta modulators are covered, including the analysis and modeling of different CT modulator architectures, CT/DT loop filter synthesis, a detailed error analysis of all components, and possible compensation/correction schemes for the non-ideal behavior in CT sigma-delta modulators. Guidance for obtaining low-power consumption and several practical implementations are also presented. It is shown that all the proposed new theories, architectures and possible correction techniques have been confirmed by measurements on discrete or integrated circuits. Quantitative results are also provided, thus enabling prediction of the resulting accuracy.

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 ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Download or read book Power Electronics Design written by Keith H. Sueker and published by Elsevier. This book was released on 2005-08-09 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wealth of practical design information ... the next-best-thing to having a mentor with a quarter-century of experience!

Download or read book UCRL written by U.S. Atomic Energy Commission and published by . This book was released on 19?? with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Learning to be written by Edgar Faure and published by UNESCO. This book was released on 1972-01-01 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: