Author: Publisher: Food & Agriculture Org.
ISBN: 9251390592
Category :
Languages : en
Pages : 220
Book Description
Author: Publisher: Food & Agriculture Org.
ISBN: 9251390592
Category :
Languages : en
Pages : 220
Book Description
Modelling non Linear Magnetic Cores at High Frequencies for PSpice Simulation
Author: Rafael Garcia GilPublisher: Universal-Publishers
ISBN: 1581122950
Category : Science
Languages : en
Pages : 87
Book Description
(Dissertation is written in Spanish.) Using PSpice of MiscroSim to simulate power converters sometimes brings awkward complications such as the simulation of real magnetic components. It deals a little bit of work to bring a good agreement between experimental and simulated results. Simulation with linear inductors or transformers does not produce good results. The reason is that real magnetic components present saturation and hysteresis, a phenomenon that characterises magnetic materials. The hysteresis or B-H loop of a magnetic component is highly dependent on frequency, waveform (not very important for ferrite material), temperature, excitation level, etc. Although PSpice includes in its magnetic library a list of non-linear components, rarely these parameters are coincident with our working conditions or simply they are not specified. In all of these cases it is necessary the modelling of non-linear magnetic cores for each particular application. Here we present a systematic procedure to obtain real PSpice parameters to model magnetic materials using the Jiles & Atherton theory. The procedure is totally general and models the static B-H loop given by any manufacturer as well as the one that can be obtained in accordance with some specific working conditions. This is really important, since it helps the designer in obtaining model parameters for any high frequency applications, which are not correctly presented in PSpice libraries. The modelled magnetic material is used for power electronics circuit simulation, which uses magnetic materials, working at frequencies in the region of kH, to construct transformers and inductors. Magnetic materials are the most critical components in electronics simulators due to their non-linear behaviour. This work examines the modelling of the magnetic core hysteresis for high-frequency applications. As example of application, a buck converter with their inductor working near saturation is implemented and their experimental waveforms are compared with the simulated ones obtained with this model. With this procedure a good concordance between experimental and simulated B-H loop is obtained and the simulation of the power converter is reached properly.
Liderazgo zero
Author: Iñaki PiñuelPublisher: Editorial Almuzara
ISBN: 8483561735
Category : Business & Economics
Languages : en
Pages : 205
Book Description
Iñaki Piñuel propone que es posible un liderazgo más allá del poder, la rivalidad y la violencia.
Micromagnetism of cylindrical nanowires with compositional and geometric modulations
Author: J. A. Fernandez-RoldanPublisher: J. A. Fernandez-Roldan
ISBN:
Category : Science
Languages : en
Pages : 161
Book Description
PhD dissertation awarded with the International Mention in the PhD Programme Condensed Matter Physics, Nanoscience and Biophysics of the Autonomous University of Madrid in year 2019. Explore this PhD dissertation, awarded with an International Mention in the PhD Programm Condensed Matter Physics, Nanoscience, and Biophysics from the Autonomous University of Madrid in 2019. This edition has enhanced readability with refreshing redesign and unique botanic motifs from the international expedition led by Jose Mutis that aim to inspire scientists and science lovers. This thesis delves into micromagnetic and analytical modelling of magnetization processes in three-dimensional nanomagnetism, focusing on design for nanotechnological applications of cylindrical nanowires. The exploration covers topics like remanent states, hysteresis processes, and pinning properties of nanowires of magnetic alloys and several geometries. Results provide a foundation for applications such as 3D magnetic memories, sensors, permanent magnets, bio-magnetic innovations, and water purification. Overall, this book communicates excellence in Research with an appealing design that covey an innovative approach of research for all readers.
The Pacific Reporter
Author: Publisher:
ISBN:
Category : Law reports, digests, etc
Languages : en
Pages : 1164
Book Description
Odisea nº 1: Revista de estudios ingleses
Author: José Francisco Fernández SánchezPublisher: Universidad Almería
ISBN:
Category : Foreign Language Study
Languages : en
Pages : 189
Book Description
Revista de Estudios Ingleses es un anuario dirigido y gestionado por miembros del Departamento de Filología Inglesa y Alemana de la Universidad de Almería con el propósito de ofrecer un foro de intercambio de producción científica en campos del conocimiento tan diversos como la lengua inglesa, literatura en lengua inglesa, didáctica del inglés, traducción, inglés para fines específicos y otros igualmente vinculados a los estudios ingleses.
Boletin de la Universidad de Guadalajara
Author: Universidad de GuadalajaraPublisher:
ISBN:
Category :
Languages : en
Pages : 1092
Book Description
Algebra and Trigonometry with Analytic Geometry
Author: Walter FlemingPublisher: Pearson Educación
ISBN: 9789688802229
Category : Mathematics
Languages : en
Pages : 808
Book Description
Guide to the Law and Legal Literature of Argentina, Brazil and Chile
Author: Edwin BorchardPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 524
Book Description
Monthly Bulletin
Author: Publisher:
ISBN:
Category : America
Languages : en
Pages : 1094
Book Description
