[PDF] The Conducted Emi In Dc Dc Converters eBook

Author : Piotr Musznicki
Publisher : Walter de Gruyter GmbH & Co KG
Page : 123 pages
File Size : 47,28 MB
Release : 2018-07-31
Category : Technology & Engineering
ISBN : 3110623927

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This book presents the phenomena of conducted electromagnetic interference (EMI) generation in DC-DC converters. The measurement and simulation are used to analyze the impact of the most important parameters on the character, level and propagation path of interference. In this book, the analysis of the interference generation and propagation is presented on the example of three basic converters. The wide banded behavior of all components is presented including basic elements and its parasitic and the connection layout. It focuses on the influence of parasitic components on the nature of interference in the frequency domain up to 30MHz was carried out. The book includes practical design and operation tips that will help to reduce the EMI. It provides useful knowledge about designing of the converters with the low level of outgoing EMI. They were obtained in original research and published in scientific articles by the author. Piotr Musznicki: Gdansk University of Technology / Faculty of Electrical and Control Engineering Buy this book on degruyter.com - www.degruyter.com/view/product/510353

Author : Xinbo Ruan
Publisher : Springer Nature
Page : 227 pages
File Size : 42,82 MB
Release : 2024-02-13
Category : Technology & Engineering
ISBN : 9819992958

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This book belongs to the subject of electrical engineering. It focuses on the modeling, prediction and reduction of conducted EMI in power converters including the AC-DC rectifiers, DC-DC converters and DC-AC inverters and provides the analytical models and solutions to conducted EMI issues in practical applications. The theoretical analysis, simulation and experimental results are well presented with figures and tables. This book is an essential and valuable reference for the graduate students and academics majoring in power electronics and the engineers being engaged in solving the conducted EMI issues in power converters. Senior undergraduate students majoring in electrical engineering and automation engineering also find this book useful.

Author : Bo Zhang
Publisher : John Wiley & Sons
Page : 257 pages
File Size : 11,84 MB
Release : 2015-04-30
Category : Technology & Engineering
ISBN : 1118451120

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Introduces chaos theory, its analytical methods and the means to apply chaos to the switching power supply design DC-DC converters are typical switching systems which have plenty of nonlinear behaviors, such as bifurcation and chaos. The nonlinear behaviors of DC-DC converters have been studied heavily over the past 20 years, yet researchers are still unsure of the practical application of bifurcations and chaos in switching converters. The electromagnetic interference (EMI), which resulted from the high rates of changes of voltage and current, has become a major design criterion in DC-DC converters due to wide applications of various electronic devices in industry and daily life, and the question of how to reduce the annoying, harmful EMI has attracted much research interest. This book focuses on the analysis and application of chaos to reduce harmful EMI of DC-DC converters. After a review of the fundamentals of chaos behaviors of DC-DC converters, the authors present some recent findings such as Symbolic Entropy, Complexity and Chaos Point Process, to analyze the characters of chaotic DC-DC converters. Using these methods, the statistic characters of chaotic DC-DC converters are extracted and the foundations for the following researches of chaotic EMI suppression are reinforced. The focus then transfers to estimating the power spectral density of chaotic PWM converters behind an introduction of basic principles of spectrum analysis and chaotic PWM technique. Invariant Density, and Prony and Wavelet analysis methods are suggested for estimating the power spectral density of chaotic PWM converters. Finally, some design-oriented applications provide a good example of applying chaos theory in engineering practice, and illustrate the effectiveness on suppressing EMI of the proposed chaotic PWM. Introduces chaos theory, its analytical methods and the means to apply chaos to the switching power supply design Approaches the subject in a systematic manner from analyzing method, chaotic phenomenon and EMI characteristics, analytical methods for chaos, and applying chaos to reduce EMI (electromagnetic interference) Highlights advanced research work in the fields of statistic characters of nonlinear behaviors and chaotic PWM technology to suppress EMI of switching converters Bridges the gap between numerical theory and real-world applications, enabling power electronics designers to both analyze the effects of chaos and leverage these effects to reduce EMI

Author : Djilali Hamza
Publisher : LAP Lambert Academic Publishing
Page : 92 pages
File Size : 28,96 MB
Release : 2009
Category :
ISBN : 9783838305622

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It is known that DC/DC converters are the principle culprits in generating conducted Electromagnetic noise interference due to the switching action of their MOSFET. Passive filters have been a straightforward solution to overcome conducted EMI problems at the expense of space, weight and power losses. The objective of this work is to find an EMI filtering method which does not depend on the input parameters of the power supply such as current, voltage, and load impedance which has direct effect on the size and the weight of the product. An active EMI filtering method is sought to be the the candidate. This technique is based on the superposition of two signals with the same magnitude and opposite phase, traveling in the same direction on the same medium. However, the combination of the active and the passive filters shows a substantial attenuation of the conducted EMI emissions as compared to the passive filter only. Also, this combination contributes to an important reduction of the size and weight of the bulky passive filter. A case-study to demonstrate the performance and the effectiveness of the active EMI filter in DC/DC converters is presented in this book.

Author : Robert Smolenski
Publisher : Springer Science & Business Media
Page : 175 pages
File Size : 21,1 MB
Release : 2012-03-23
Category : Technology & Engineering
ISBN : 1447129598

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As power systems develop to incorporate renewable energy sources, the delivery systems may be disrupted by the changes involved. The grid’s technology and management must be developed to form Smart Grids between consumers, suppliers and producers. Conducted Electromagnetic Interference (EMI) in Smart Grids considers the specific side effects related to electromagnetic interference (EMI) generated by the application of these Smart Grids. Conducted Electromagnetic Interference (EMI) in Smart Grids presents specific EMI conducted phenomena as well as effective methods to filter and handle them once identified. After introduction to Smart Grids, the following sections cover dedicated methods for EMI reduction and potential avenues for future development including chapters dedicated to: •potential system services, •descriptions of the EMI spectra shaping methods, •methods of interference voltage compensation, and theoretical analysis of experimental results. By focusing on these key aspects, Conducted Electromagnetic Interference (EMI) in Smart Grids provides a concise and comprehensive coverage of an extensive subject matter. It constitutes a key resource for any industry practitioners, researchers or system designers with interest in Smart Grids, particularly their electromagnetic compatibility in the conducted EMI frequency range.

Author : L. Ashok Kumar
Publisher : CRC Press
Page : 471 pages
File Size : 11,43 MB
Release : 2023-10-02
Category : Technology & Engineering
ISBN : 1000959341

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• Discusses about the basic principles of EMI/EMC including causes and events. • Makes reader understand the problems in different applications because of EMI/EMC and the reducing methods. • Explores real-world case studies with code to provide hands-on experience. • Reviews design strategies for mitigation of noise. • Includes MATLAB, PSPICE, ADS simulations for designing EMI Filter circuits.

Author : Li Zhai
Publisher : Springer Nature
Page : 447 pages
File Size : 36,64 MB
Release : 2021-01-30
Category : Technology & Engineering
ISBN : 9813361654

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This book introduces the electromagnetic compatibility(EMC) of electric vehicle(EV), including EMC of the whole vehicle, electromagnetic interference(EMI) prediction and suppression of motor drive system, EMI prediction and suppression of DC-DC converter, electromagnetic field safety and EMC of wireless charging system, signal integrity and EMC of the vehicle controller unit(VCU), EMC of battery management system(BMS), electromagnetic radiated emission diagnosis and suppression of the whole vehicle, etc. The analysis method, modeling and simulation method, test method and rectification method of EMC are demonstrated. The simulation and experimental results are presented as tables and figures. This book is useful as reference for graduate students, senior undergraduates and engineering technicians of vehicle engineering related majors. For EMI prediction, suppression and EMC optimization design for EVs, this book provides reference for engineers to solve EMC problems. This book is intended for senior undergraduates, postgraduates, lecturers and laboratory researchers engaged in electric vehicle and electromagnetic compatibility research.