Journal articles: 'EMI/EMC'

1

Holmstrom, F. R., D. Turner, and E. Fernald. "Rail transit EMI-EMC." IEEE Electromagnetic Compatibility Magazine 1, no. 1 (2012): 79–82. http://dx.doi.org/10.1109/memc.2012.6244954.

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Wu, Yong, Qishuang Ma, and Ping Xu. "Progress of Electromagnetic Compatibility Design for Unmanned Aerial Vehicles." MATEC Web of Conferences 316 (2020): 04008. http://dx.doi.org/10.1051/matecconf/202031604008.

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The electromagnetic environment of UAV system was studied, and three key elements of electromagnetic interference(EMI) are analyzed. The research status of electromagnetic characteristics of UAV system at home and abroad was summarized from numerical simulation of EMI, experimental test of EMI and design of electromagnetic compatibility(EMC). The main contents include the research on electromagnetic characteristics of airborne antenna, EMI of data link and its mechanism, electromagnetic characteristics of internal cables, electromagnetic radiation test, electromagnetic conduction test, system-level EMC design, etc. The key technical challenges faced by the research on EMC of unmanned aerial vehicles at home and abroad are pointed out.

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Wang, Xiyu, Angyang Li, Yanchao Cong, and Hongwei Mu. "Research on electromagnetic compatibility prediction and test verification of spacecraft wireless system." Journal of Physics: Conference Series 2336, no. 1 (August 1, 2022): 012012. http://dx.doi.org/10.1088/1742-6596/2336/1/012012.

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Abstract A calculation method of electromagnetic interference(EMI) margin of spacecraft wireless system is analyzed and researched in this paper, meanwhile the EMI margin is simulated and calculated. The electromagnetic compatibility (EMC) of wireless system is prognosed for a couple of wireless equipment which indicate that there is a risk of EMI among this couple of wireless equipment. According to the simulation results, a series of EMC test including tabletop dispersedly test and comprehensive test has been implemented to verify the prediction method. The test results indicate that there is EMI phenomenon among this couple of wireless equipment which support the accuracy of the prediction method. Combined with simulation and test results, a method for spacecraft wireless system EMC prediction has been proposed. The method will reduce the EMI problem in spacecraft development process and be benefit to subsequent maintenance.

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Ma, Feng Ying. "EMI Soft-Sensing and Filter Based on Wavelet Applied in Underground Monitoring System." Advanced Materials Research 503-504 (April 2012): 1360–64. http://dx.doi.org/10.4028/www.scientific.net/amr.503-504.1360.

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In order to enhance Electromagnetic Compatibility (EMC) of monitoring system, the EMI distribution should be obtained. But the measurement could not be accomplished perfectly because of underground condition. A novel EMI soft-sensing method was proposed to measure the electromagnetic interference(EMI) indirectly. The wavelet time-frequency analysis was introduced to monitoring system and the EMI source could be ascertained. The startup time, duration and waveform could be detected based on the running records of underground electric equipments. The electrical fast transient/burst (EFT/B), the most outstanding interference, was studied to verify the validity of wavelet analysis. EMI filter was improved in accordance of the EMI gotten from wavelet analysis. Power port immunity was developed obviously. Therefore the EFT/B of data port was restrained markedly with wavelet filtration. Coordinative effect of EMI power and wavelet filter resulted in reduction of false alarms. Results indicate that wavelet analysis and the improved EMI filter have enhanced the EMC of monitoring substations and sensors obviously. It is concluded the wavelet analysis is of guiding significance to measure underground EMI distribution and EMC of the underground monitoring system.

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Gao, Feng, Chengkai Ye, Zilong Wang, and Xu Li. "Improvement of Low-Frequency Radiated Emission in Electric Vehicle by Numerical Analysis." Journal of Control Science and Engineering 2018 (October 1, 2018): 1–8. http://dx.doi.org/10.1155/2018/5956973.

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In this paper, a methodology for improving vehicle-level radiated electromagnetic interference (EMI) in electric vehicle (EV) is proposed. This methodology predicts vehicle-level radiated EMI by using the multiport network theory, based on analyzing the contribution from each electronic component to find out the main EMI source. To validate its effectiveness, the proposed methodology is applied in an actual EV for low-frequency radiated emissions. Simulation in a commercially available electromagnetics software and measurement in the EV are combined to predict the vehicle-level emissions, and then the electronic component with the greatest EMI that causes failure to meet the EMC standard is identified. After improving this component, the vehicle-level radiated emission is reduced to comply with the EMC standard, proving that the presented numerical method is effective. The proposed methodology can also be used in other EMC issues, regardless of the amount of interference sources and sensitive equipment.

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Wu, Cunxue, Feng Gao, Hanzhe Dai, and Zilong Wang. "A Topology-Based Approach to Improve Vehicle-Level Electromagnetic Radiation." Electronics 8, no. 3 (March 25, 2019): 364. http://dx.doi.org/10.3390/electronics8030364.

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The popularity of the electric vehicle (EV) brings us many challenges of electromagnetic compatibility (EMC). Automotive manufacturers are obliged to keep their products in compliance with EMC regulations. However, the EV is a complex system composed of various electromagnetic interferences (EMI), sensitive equipment and complicated coupling paths, which pose great challenges to the efficient troubleshooting of EMC problems. This paper presents an electromagnetic topology (EMT) based model and analysis method for vehicle-level EMI prediction, which decomposes an EV into multi-subsystems and transforms electromagnetic coupling paths into network parameters. This way, each part could be modelled separately with different technologies and vehicle-level EMI was able to be predicted by algebra calculations. The effectiveness of the proposed method was validated by comparing predicted vehicle-radiated emissions at low frequency with experimental results, and application to the troubleshooting of emission problems.

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Ganesan, R., and K. R. Kini. "Electromagnetic Interference/Compatibility (EMI/EMC) Measurement." IETE Technical Review 20, no. 5 (September 2003): 415–24. http://dx.doi.org/10.1080/02564602.2003.11417100.

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Li, Hongyi, Di Zhao, Shaofeng Xu, Pidong Wang, and Jiaxin Chen. "High Dimensional Electromagnetic Interference Signal Clustering Based On SOM Neural Network." Electronics ETF 20, no. 1 (July 15, 2016): 27. http://dx.doi.org/10.7251/els1620027l.

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In this paper, we study the spectral characteristics and global representations of strongly nonlinear, non-stationary electromagnetic interferences (EMI), which is of great significance in analysing the mathematical modelling of electromagnetic capability (EMC) for a large scale integrated system. We firstly propose to use Self-Organizing Feature Map Neural Network (SOM) to cluster EMI signals. To tackle with the high dimensionality of EMI signals, we combine the dimension reduction and clustering approaches, and find out the global features of different interference factors, in order to finally provide precise mathematical simulation models for EMC design, analysis, forecasting and evaluation. Experimental results have demonstrated the validity and effectiveness of the proposed method.

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Seidman, Seth J., Wolfgang Kainz, Jon Casamento, and Donald Witters. "Electromagnetic Compatibility Testing of Implantable Neurostimulators Exposed to Metal Detectors." Open Biomedical Engineering Journal 4, no. 1 (March 9, 2010): 63–70. http://dx.doi.org/10.2174/1874120701004010063.

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This paper presents results of electromagnetic compatibility (EMC) testing of three implantable neurostimulators exposed to the magnetic fields emitted from several walk-through and hand-held metal detectors. The motivation behind this testing comes from numerous adverse event reports involving active implantable medical devices (AIMDs) and security systems that have been received by the Food and Drug Administration (FDA). EMC testing was performed using three neurostimulators exposed to the emissions from 12 walk-through metal detectors (WTMDs) and 32 hand-held metal detectors (HHMDs). Emission measurements were performed on all HHMDs and WTMDs and summary data is presented. Results from the EMC testing indicate possible electromagnetic interference (EMI) between one of the neurostimulators and one WTMD and indicate that EMI between the three neurostimulators and HHMDs is unlikely. The results suggest that worst case situations for EMC testing are hard to predict and testing all major medical device modes and setting parameters are necessary to understand and characterize the EMC of AIMDs.

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V, Popov, and Shevchenko A. "ELECTROMAGNETIC COMPATIBILITY OF RES ON RAILWAY." Visnyk Universytetu “Ukraina”, no. 1 (28) 2020 (2020): 7–22. http://dx.doi.org/10.36994/2707-4110-2020-1-28-01.

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This work reviews the main related problems of electromagnetic compatibility (EMC) of the locomotive radio system GSM-R in modern railway transport. The typical internal electromagnetic interference (EMI), caused by the high density of the equipment layout in the rolling stock, and external electromagnetic interference generated by public cellular mobile communication networks and other radio systems are considered. The results of experiments to determine the parameters of public cellular mobile communication networks along the selected railway section show a rather high level of signals that are EMI for GSM-R and affecting on EMC.

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Sayed, Waseem El, Piotr Lezynski, Robert Smolenski, Niek Moonen, Paolo Crovetti, and Dave W. P. Thomas. "The Effect of EMI Generated from Spread-Spectrum-Modulated SiC-Based Buck Converter on the G3-PLC Channel." Electronics 10, no. 12 (June 12, 2021): 1416. http://dx.doi.org/10.3390/electronics10121416.

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Power line communication (PLC) is increasingly emerging as an important communication technology for the smart-grid environment. As PLC systems use the existing infrastructure, they are always exposed to conducted electromagnetic interference (EMI) from switching mode power converters, which need to be tightly controlled to meet EMC regulations and to ensure the proper operation of the PLC system. For this purpose, spread-spectrum modulation (SSM) techniques are widely adopted to decrease the amplitude of the generated EMI from the power converters so as to comply with EMC regulations. In this paper, the influence of a spread-spectrum-modulated SiC-based buck converter on the G3-PLC channel performance is described in terms of channel capacity reduction using the Shannon–Hartley equation. The experimental setup was implemented to emulate a specific coupling path between the power and communication circuits and the channel capacity reduction was evaluated by the Shannon–Hartley equation in several operating scenarios and compared with the measured frame error rate. Based on the obtained results, SSM provides the EMI spectral peak amplitude reduction required to pass the electromagnetic compatibility (EMC) tests, but results in increased EMI-induced channel capacity degradation and increased transmission error rate in PLC systems.

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Juras, Joseph, and Donald Cebulski. "Ship Topside Integration and Electromagnetic Interference Control." Marine Technology and SNAME News 29, no. 01 (January 1, 1992): 36–49. http://dx.doi.org/10.5957/mt1.1992.29.1.36.

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Electromagnetic Interference (EMI) is rapidly becoming one of the major contributors to mission degradation in the U.S. Fleet today. Topside design and integration efforts have been used to reduce EMI, but this is not the total solution to the problem. A program of total ship and system EMI control must be implemented that will span battle groups and be effective during joint operations before optimum combat system effectiveness can be realized. This paper gives examples of some of the major EMI problems in the fleet today. It discusses both intraship and intership EMI problems, how these problems arose, and how they might have been prevented through the use of techniques such as frequency management, equipment design, better element placement and improved cable shielding. It describes the current topside design process, electromagnetic compatibility (EMC) improvements being made and traces the history of EMC requirements and their application to date. It also describes a developing program for managing ship topside arrangement configuration. The authors project where the challenges lie for future topside and EM engineering designers and describe how the equipment acquisition process must improve in order to meet the challenge of effective EMI control.

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13

Sauerwald, Mark. "Successfully Designing with Automotive EMC/EMI Requirements." ATZelektronik worldwide 11, no. 1 (February 2016): 58–61. http://dx.doi.org/10.1007/s38314-016-0009-7.

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14

Rao, D. A. V. Krishna, and S. Veerabhadraiah. "Effects of EMI/EMC on Electronic Devices." IETE Technical Review 7, no. 1 (January 1990): 70–74. http://dx.doi.org/10.1080/02564602.1990.11438586.

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15

Wang, Jialiang. "RF Circuit EMI Suppression and EMC Analysis." Highlights in Science, Engineering and Technology 27 (December 27, 2022): 820–25. http://dx.doi.org/10.54097/hset.v27i.3851.

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The radio frequency circuit will generate strong electromagnetic interference in the process of signal transmission, and its own resistance to electromagnetic interference is weak, and the radio frequency circuits operating in the same electromagnetic environment are prone to mutual interference. Therefore, it is necessary to analyze the electromagnetic interference effect of radio frequency circuits, and then find effective suppression measures, build a good public electromagnetic environment, realize electromagnetic compatibility, and ensure the reliability of signal transmission. This research first briefly introduces electromagnetic interference and electromagnetic compatibility and then analyzes the key points of electromagnetic interference suppression in radio frequency circuits. On this basis, the specific application of electromagnetic interference suppression and electromagnetic compatibility technology of radio frequency circuit is discussed. It can serve as a guide for the design of the radio frequency circuit by analyzing the characteristics and suppression mechanism of the electromagnetic interference of the radio frequency circuit. To ensure the suppression impact of electromagnetic interference, various suppression measures are broadly implemented in accordance with the three components of electromagnetic interference. The electromagnetic compatibility-based design of RF circuits can reduce the mutual interference of RF circuits in the system and guarantee the stability and dependability of signal transmission.

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16

Silasi, David. "Power Up." Consumer Electronics Test & Development 2021, no. 1 (July 2021): 80. http://dx.doi.org/10.12968/s2754-7744(23)70025-0.

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K, Ramya, and Janaki G. "The Digital Modernization and Necessity of Electromagnetic Compliance: Concern about Human Well -Being in Future." ECS Transactions 107, no. 1 (April 24, 2022): 10767–76. http://dx.doi.org/10.1149/10701.10767ecst.

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Digital Modernization and Digital Transformation have become a predominant source of Electro Magnetic Interference (EMI) in today’s world. The DC-DC Converters market is also expanding due to the emergence of digital market. DC-DC converters produce lots of EMI and affect the performance of neighbouring sensitive systems. It is very important to comply with specifications to ensure electromagnetic compatibility (EMC) standards by prioritizing the sustainability and incorporating the social responsibilities for the human well-being. It’s really a great challenge to the design engineers to give a best solution to EMI and at the same time producing a cost-effective system. During the development of a new system itself at most care need to be taken to prevent EMI. Numerous design methods, simulation tools are available to predict the noise level and provide feasible/reliable solutions to the problems at low cost. In-spite of that, there are some deviations in the end results in reality compare to the simulated values. This research paper focuses on the quick review of EMI, EMC standards as well as the comparative analysis of simulated measurements of a different design Buck-Boost DC-DC converter.

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SUDO, Toshio, and Atsushi NAKAMURA. "EMI Simulation and EMC Design. Perspectives for EMC Design and Recent Topics." Journal of Japan Institute of Electronics Packaging 2, no. 7 (1999): 508–14. http://dx.doi.org/10.5104/jiep.2.508.

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UENO, Osamu, Akihisa SAKURAI, and Shigeo NARA. "EMI Simulation and EMC Design. EMC Design in Computer-Aided Design Systems." Journal of Japan Institute of Electronics Packaging 2, no. 7 (1999): 531–34. http://dx.doi.org/10.5104/jiep.2.531.

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Lin, Han-Nien, Ya-Ying Chen, Hung-Yun Tsai, and Min-Shan Lin. "Characteristic Analysis and Applications of Electromagnetic Shielding Materials for Wireless Communications Device." Open Materials Science Journal 10, no. 1 (July 15, 2016): 44–53. http://dx.doi.org/10.2174/1874088x01610010044.

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As the trend of consumer electronics and mobile communications devices is obviously developing toward to miniature and high-speed processing, the problem involving with electromagnetic compatibility (EMC) or radio frequency interference (RFI) is becoming more critical for the system integration of high-speed digital and RF mixed signal platforms. This paper is mainly focusing on the characteristics analysis of various electromagnetic shielding materials by utilizing the various shielding effectiveness (SE) measuring methods developed by TDK and ASTM (ASTM D4935). We also adopt the electromagnetic interference (EMI) testing methods developed by IEC for chip level (IEC 61967-3 and IEC 61967-6) to investigate the characteristics and distribution of EMI noise sources. To effectively shield the electric, magnetic, or electromagnetic field originated from noise source, we thus analyze the shielding capability for various materials with different measuring methods. Finally, we will show the EMI reduction and RF performance improvement with implementation of shielding material on module under investigated. With the systematic measurement and analysis described in this paper, we can further identify the related EMI problem and resolve the severe chip or module level EMC problem more effectively.

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Vinaychowdary, I., and Ch R Phani Kumar. "Modelling of a Filter using EMI/EMC Considerations." International Journal of Computer Applications 120, no. 6 (June 18, 2015): 7–11. http://dx.doi.org/10.5120/21229-3966.

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Kasmi, Chaouki, Sebastien Lallechere, Jose Lopes Esteves, Sebastien Girard, Pierre Bonnet, Francoise Paladian, and Emmanuel Prouff. "Stochastic EMC/EMI Experiments Optimization Using Resampling Techniques." IEEE Transactions on Electromagnetic Compatibility 58, no. 4 (August 2016): 1143–50. http://dx.doi.org/10.1109/temc.2016.2557847.

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Sen, A. K., R. Bera, M. K. Sen Gupta, S. K. Dutta, G. Tarafdar, A. Mitra, S. S. Dey, et al. "EMI/EMC in Microwave and Millimeter Wave Receivers." IETE Technical Review 7, no. 2 (March 1990): 120–25. http://dx.doi.org/10.1080/02564602.1990.11438602.

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KOGURE, Hiroaki, and Kohji KOSHIJI. "EMI Simulation and EMC Design. Present Techniques on EMI Simulation and Recent Topics." Journal of Japan Institute of Electronics Packaging 2, no. 7 (1999): 515–20. http://dx.doi.org/10.5104/jiep.2.515.

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TOMINAGA, Hiroyuki, and Mamoru SEKIGUCHI. "EMI Simulation and EMC Design. EMI Simulations for Model Analysis and Design Supports." Journal of Japan Institute of Electronics Packaging 2, no. 7 (1999): 521–25. http://dx.doi.org/10.5104/jiep.2.521.

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Kircher, Daniel, and David Johannes Pommerenke. "EMC Analysis of the Inverting Boost/Buck Converter Topology." Electronics 11, no. 20 (October 19, 2022): 3388. http://dx.doi.org/10.3390/electronics11203388.

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This paper describes the electromagnetic compatibility (EMC) analysis of an inverting buck/boost converter. The inverting buck/boost converter differs from other DC/DC converters, such as the noninverting boost or buck converters, in that one inductor terminal is connected to the ground and not to the input or output of the converter, i.e., neither input nor output is isolated from an EMC perspective. A SPICE model was developed for analyzing the EMC properties of the circuit. Two electromagnetic interference EMI-relevant resonances were observed depending on the state of the switch. Simulations are confirmed with measurements using a circuit designed from discrete components. Further, integrated commercially available converters were analyzed and showed EMC properties that were similar to those of the general model.

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Gang, Sung-Won, Jun-Kyu Kim, Jun-Ho So, Young-Seek Chung, and Chang-Yul Cheon. "Design of an Antenna Using Four-wires for EMI/EMC Experiment." Journal of Korean Institute of Electromagnetic Engineering and Science 18, no. 6 (June 30, 2007): 612–19. http://dx.doi.org/10.5515/kjkiees.2007.18.6.612.

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Ahmad, Fally, Mohammad Yanuar Hariyawan, and Siska Novita Posma. "Perancangan Dan Implementasi Passive Emi Filter Pada Switching Mode Power Supply (SMPS)." Jurnal Elektro dan Mesin Terapan 5, no. 1 (2019): 29–37. http://dx.doi.org/10.35143/elementer.v5i1.2519.

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Kebutuhan akan perangkat elektronik dengan frekuensi yang tinggi menyebabkan meningkatnya jumlah Electromagnetic Interference (EMI) yang memiliki dua jenis yaitu Conducted Emission dan Radiated Emission. Solusi dari mitigasi EMI tersebut adalah dengan menggunakan filter EMI. Switching Mode Power Supply (SMPS) merupakan sumber daya bagi hampir seluruh perangkat elektronik, namun SMPS ini juga sumber EMI untuk perangkat lain atau bahkan perangkat itu sendiri. Banyak perangkat elektronik yang beredar dipasaran namun belum memenuhi standar EMC. Dalam hal ini mitigasi EMI yang dapat dilakukan adalah dengan menggunakan filter EMI eksternal pasif. Dengan filter pasif ini EMI dari SMPS dapat diredam tanpa memerlukan energi tambahan untuk filter itu sendiri. Penelitian ini akan melakukan perancangan filter EMI untuk meredam noise conducted emission menggunakan sebuah passive EMI filter (PEF) pada SMPS. Filter PEF yang telah dirancang dan diujikan dapat digunakan pada SMPS 1 dan SMPS 2 dengan noise conducted emission sebelum filter sebesar 97,86 dBµV yang diredam menjadi 33 dBµV dan menghasilkan redaman noise conducted emission yang sangat baik (hingga 64,86 dBµV) dan memenuhi standar yang ditetapkan (CISPR22 Class B).

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He, Junping, Yujin Liu, Cong Wang, and Lingling Cao. "Magnetic Coupling Common Mode Conducted EMI Analysis and Improvement in a Boost Converter." World Electric Vehicle Journal 12, no. 4 (November 9, 2021): 225. http://dx.doi.org/10.3390/wevj12040225.

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Common mode (CM) electromagnetic interference (EMI) has been a difficult subject in electromagnetic compatibility (EMC) analysis and design of power converters for electric vehicles (EV) because of its complex formation mechanism and hidden propagation path. This paper studies a new mechanism of CM conducted emission caused by the leakage flux of a toroidal inductor in the main circuit of a boost DC/DC converter. The stray magnetic source and the CM inducted loops are firstly identified out by simulation analysis and experiments. Then a comprehensive conducted emission circuit model including magnetic coupling parameters is built to explain this CM EMI formation mechanism. Finally, several effective magnetic coupling suppression methods are proposed and verified, such as changing the installation angle of the inductor and the shape of the magnetic core. The research results are helpful to the EMC understanding and design of power electronic converters.

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OGASAWARA, Satoshi. "Modeling and Simulation of EMI /EMC in Power Electronics Field." Journal of The Institute of Electrical Engineers of Japan 126, no. 6 (2006): 352–55. http://dx.doi.org/10.1541/ieejjournal.126.352.

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NAKAMURA, Atsushi, Mitsuaki KATAGIRI, and Tohru HAYASHI. "EMC of Semiconductor Packages. EMI Evaluation of Semiconductor Packages." Journal of Japan Institute of Electronics Packaging 1, no. 6 (1998): 446–50. http://dx.doi.org/10.5104/jiep.1.446.

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Mallette, L. A., and R. Adams. "Introduction to EMI/EMC test requirements for space applications." IEEE Aerospace and Electronic Systems Magazine 26, no. 6 (June 2011): 24–29. http://dx.doi.org/10.1109/maes.2011.5936182.

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Gravelle, L. B., and P. F. Wilson. "EMI/EMC in printed circuit boards-a literature review." IEEE Transactions on Electromagnetic Compatibility 34, no. 2 (May 1992): 109–16. http://dx.doi.org/10.1109/15.135623.

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Roy, Atanu, Saswati Ghosh, and Ajay Chakraborty. "SIMPLE CROSSTALK MODEL OF THREE WIRES TO PREDICT NEAREND AND FAREND CROSSTALK IN AN EMI/EMC ENVIRONMENT TO FACILITATE EMI/EMC MODELING." Progress In Electromagnetics Research B 8 (2008): 43–58. http://dx.doi.org/10.2528/pierb08050503.

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Lalléchère, S., B. Jannet, P. Bonnet, and F. Paladian. "Sensitivity analysis to compute advanced stochastic problems in uncertain and complex electromagnetic environments." Advanced Electromagnetics 1, no. 3 (October 15, 2012): 13. http://dx.doi.org/10.7716/aem.v1i3.43.

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This paper deals with the advanced integration of uncertainties in electromagnetic interferences (EMI) and electromagnetic compatibility (EMC) problems. In this context, the Monte Carlo formalism may provide a reliable reference to proceed to statistical assessments. After all, other less expensive and efﬁcient techniques have been implemented more recently (the unscented transform and stochastic collocation methods for instance) and will be illustrated through uncertain EMC problems. Finally, we will present how the use of sensitivity analysis techniques may offer an efﬁcient complement to rough statistical or stochastic studies.

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Sarkar, Mahadev, and B. R. Raghu. "Design Strategies to Overcome EMI/EMC Issues of Airborne Receivers." Journal of Physics: Conference Series 2250, no. 1 (April 1, 2022): 012007. http://dx.doi.org/10.1088/1742-6596/2250/1/012007.

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Abstract This article describes various housing design strategies of a complex receiver system to overcome EMI/EMC challenges for airborne system applications. Isolation of leakage energy between various RF/DC-DC converters/Regulators/pulsing blocks are the key target of this design to keep conductive and radiative emission minimum. Hence, complex receiver design has been segregated into various modules. Block level design is carried out using 3D EM simulator to assess the leakage. Then they are stacked together very tactfully within the specified area without compromising inter-channel/module interference between them and the form factor respectively. The super compact stacks are further channelized for RF, DC supply, controls etc. and protected them from any kind of interferences. Low cost flexi interconnects are made to interface various stacks to arrest unwanted high/low frequency leakages. Finally, receiver module is developed and tested over temperature and EMI/EMC successfully to establish the methodology.

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Li, Hong Yi, Yuan Yang, and Di Zhao. "A One-Stop Method for EMI Analysis Based on Wavelet Packet and SOM." Applied Mechanics and Materials 530-531 (February 2014): 341–44. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.341.

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The analysis of electromagnetic interferences (EMI) has been a heated problem in the field of Electromagnetic Compatibility (EMC). As the demand of efficiency and effectiveness is getting higher, the traditional methods have become the short board in analysis process. These methods havent provided a solution to analyze the relation among multiple EMI signals, and the data clustering and mining are currently done manually. To address this problem, in this paper we propose a one-stop method based on the wavelet packet decomposition (WPD) and self-organized feature map (SOM), aiming to provide a systematical and solution to extract and analyze multiple EMI signals. Experimental results are also provided to demonstrate the validity and efficiency of the proposed method.

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Uma Maheswari Y, Amudha A, and Ashok Kumar L. "A Review on EMI Issues in High speed Designs and Solutions." Journal of Electronics, Electromedical Engineering, and Medical Informatics 4, no. 4 (October 29, 2022): 191–203. http://dx.doi.org/10.35882/jeeemi.v4i4.253.

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As data speed on printed circuit boards have increased, new difficulties have evolved and necessitating the development of new analytical methodologies and solutions. It will be necessary to continue research in order to keep up with the ever-increasing data rates and smaller form factors. The literature and issue pertaining to the EMI/EMC of printed circuit boards are reviewed in detail in this paper for the purpose of providing an overview and to assist people looking for more extensive references related to this area. This review includes EMI issues related to high speed PCB, EMI measurement techniques using software and hardware and solution for the EMI issues. Also reviewed the use of electromagnetic band gap (EBG) technology to minimize electromagnetic interference (EMI). In recent years, there have been a number of articles describing the several uses of EBG for the purpose of blocking undesired radiation at discontinuities. Various EBG structure performances with its applications are analysed and detailed.

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Janaki, Gopal, and A. Senthil Kumar. "Exploration of EMI in Buck Boost Converter – A Real Time Approach ." Applied Mechanics and Materials 573 (June 2014): 78–82. http://dx.doi.org/10.4028/www.scientific.net/amm.573.78.

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This paper explores the level of conducted EMI in a buck boost converter under a non linear load condition based on the CISPR 11 / Class A EMC standard. Here, the buck boost converter was designed to produce a constant output voltage irrespective of load conditions. The closed loop control is designed using dsPIC controller. Three different randomization firing schemes are adopted and the EMI analysis in each mode is done experimentally. Also, the results are compared with normal PWM scheme. The experimental result shows that in RPWM scheme the emission levels are comparatively low.

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Kalaiarasu, Srinivasan, and Sudhakar Natarajan. "Conducted electromagnetic interference mitigation in super-lift Luo-converter for electric vehicle applications." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 4 (August 1, 2023): 3838. http://dx.doi.org/10.11591/ijece.v13i4.pp3838-3846.

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In this article, a digital chaotic pulse width modulation (DCPWM)-dependent electromagnetic interference (EMI) noise attenuating procedure has been implemented. With the aid of a field programmable gate array (FPGA), a randomized carrier frequency modulation with a fixed duty cycle has been generated through chaotic carrier frequency, and this process is called DCPWM. Conducted EMI suppression is achieved in a 200 kHz, 40 W elementary positive output super lift Luo (EPOSLL) converter using the DCPWM technique. The results are compared and validated with periodic PWM over DCPWM in simulation and hardware with electromagnetic compatibility (EMC) standards. Besides, 9 dBV (2.81 V) of conducted EMI noise has been minimized in the DCPWM approach against periodic pulse width modulation method for the EPOSLL converter in electric vehicles applications.

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41

Suarez, Adrian, Jorge Victoria, Jose Torres, Pedro A. Martinez, Antonio Alcarria, Julio Martos, Raimundo Garcia-Olcina, Jesus Soret, Steffen Muetsch, and Alexander Gerfer. "Effectiveness Assessment of a Nanocrystalline Sleeve Ferrite Core Compared with Ceramic Cores for Reducing Conducted EMI." Electronics 8, no. 7 (July 17, 2019): 800. http://dx.doi.org/10.3390/electronics8070800.

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The interconnection of different electronic devices or systems through cables is becoming more difficult due to the hard restrictions related to electromagnetic compatibility (EMC) in order to comply with requirements. Therefore, the use of EMC components is a good solution to manage the problems associated with the filtering of electromagnetic interference (EMI) in cables and to pass the compliance test. In this sense, sleeve ferrite cores become a very interesting solution since they can be set around a wire and, hence, they provide an effective solution against EMI without having to redesign the electronic circuit. This contribution is focused on the characterization of the performance of a sleeve ferrite core based on a novel nanocrystalline (NC) novel material for EMI suppression and comparing it to the most conventional ceramic ferrite cores such as MnZn and NiZn. The research highlights the suitability of an NC novel component in terms of its magnetic properties to reduce EMI within the conducted emissions range. This range is generally defined by the International Special Committee on Radio Interference (CISPR) test standards frequency band that covers from 150 kHz up to 30 MHz (108 MHz in the case of CISPR 25). First, this study presents a description of the main parameters that define the behavior of NC and ceramic cores and, secondly, by analyzing the data obtained from experimental procedures, it is possible to directly determine the insertion loss parameter. Hence, this characterization procedure is used to obtain the performance of NC material compared to the conventional sleeve ferrite core compositions employed to filter the interferences in this problematic frequency range. As can be deduced from the results obtained, an NC sleeve ferrite core provides the best performance in terms of EMI filtering within a significant frequency range between 100 kHz and 100 MHz.

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42

Sen, Gobinda, and Santanu Das. "FREQUENCY TUNABLE LOW COST MICROWAVE ABSORBER FOR EMI/EMC APPLICATION." Progress In Electromagnetics Research Letters 74 (2018): 47–52. http://dx.doi.org/10.2528/pierl17120601.

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43

Mediano, Arturo. "Review of the fundamentals of EMI/EMC tutorial in Dresden." IEEE Electromagnetic Compatibility Magazine 4, no. 4 (2015): 27–28. http://dx.doi.org/10.1109/memc.2015.7407147.

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Çömlekçi, Selçuk, Şükrü Özen, and Etem Köklükaya. "Optimization of resistive loading of EMI/EMC near field probe." Robotics and Autonomous Systems 49, no. 3-4 (December 2004): 245–51. http://dx.doi.org/10.1016/j.robot.2004.09.012.

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Song, Yuhong, Junying Niu, and Zhong Li. "Chaos versus EMI: Methodologies and Practice." International Journal of Bifurcation and Chaos 29, no. 12 (November 2019): 1930033. http://dx.doi.org/10.1142/s0218127419300337.

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This paper gives a review on the methodologies of using the continuous power spectrum feature of chaos to suppress electromagnetic interference (EMI), which have been extensively studied in the past 15 years, and their practical applications in power electronic converters of various topologies and powers, which have been widely employed in various electrical and electronic devices in our daily lives and thus form the main sources of EMI. This paper not only points out that chaotic modulation is effective and feasible in improving the electromagnetic compatibility (EMC) of various types of power electronic converters, but also gives the circuit design methodologies for different kinds of converters, especially the design methods of modules and chips. It can serve as a guide for engineering applications.

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46

Kim, Yung-Ho, Won-Bum Seo, and Kyu-Min Kim. "A Study on Method of Minimizing EMI/EMC for Naval Vessels MOSCOS-ES Antenna System." Journal of the Korea Academia-Industrial cooperation Society 23, no. 10 (October 31, 2022): 1–8. http://dx.doi.org/10.5762/kais.2022.23.10.1.

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Khvitia, Badri, Anna Gheonjian, Zviadi Kutchadze, and Roman Jobava. "A SPICE Model for IGBTs and Power MOSFETs Focusing on EMI/EMC in High-Voltage Systems." Electronics 10, no. 22 (November 17, 2021): 2822. http://dx.doi.org/10.3390/electronics10222822.

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We describe two models of Power Transistors (IGBT, MOSFET); both were successfully used for the analysis of electromagnetic interference (EMI) and electromagnetic compatibility (EMC) while modeling high-voltage systems (PFC, DC/DC, inverter, etc.). The first semi-mathematical–behavioral insulated-gate bipolar transistor (IGBT) model introduces nonlinear negative feedback generated in the semiconductor’s p+ and n+ layers, which are located near the metal contact of the IGBT emitter, to better describe the dynamic characteristics of the transistor. A simplified model of the metal–oxide-semiconductor field-effect transistor (MOSFET) in the IGBT is used to simplify this IGBT model. The second simpler behavioral model could be used to model both IGBTs and MOSFETs. Model parameters are obtained from datasheets and then adjusted using results from a single measurement test. Modeling results are compared with measured turn-on and turn-off waveforms for different types of IGBTs. To check the validation of the models, a brushless DC electric motor test setup with an inverter was created. Despite the simplicity of the presented models, a comparison of model predictions with hardware measurements revealed that the model accurately forecasted switch transients and aided EMI–EMC investigations.

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M'barki, Zakaria, Kaoutar Senhaji Rhazi, and Youssef Mejdoub. "A novel fuzzy logic control for a zero current switching-based buck converter to mitigate conducted electromagnetic interference." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 2 (April 1, 2023): 1423. http://dx.doi.org/10.11591/ijece.v13i2.pp1423-1436.

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<span lang="EN-US">This research provides a new control technique for mitigating conducted electromagnetic interference (EMI) in a buck converter designed for solar applications. Indeed, hard-switching direct current to direct current (DC-DC) converters, commonly used in industrial applications, pose a significant risk to the surrounding environment regarding electromagnetic compatibility (EMC). Usually, the fast-switching phase induces abrupt changes in current and voltage, which adds to substantial electromagnetic interference in both conducted and radiated modes and excessive auditory noise. An architecture based on the duality of soft-switching topology and fuzzy logic control technology is developed to address these issues. On the one hand, resonant circuit topologies are used to induce switches to achieve soft switching conditions, which subsequently lessen the effects of EMI. On the other hand, the adoption of fuzzy logic control technology is interesting since it can reduce electrical stresses during switching. Furthermore, the simulation results show that zero current switching (ZCS) soft-switching closed-loop fuzzy logic converters outperform typical open-loop converters and soft-switching closed-loop converters with proportional integral (PI) control in terms of EMC requirements.</span>

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Wang, Da, Dominique Weyen, and Paul Van Tichelen. "Proposals for Updated EMC Standards and Requirements (9–500 kHz) for DC Microgrids and New Compliance Verification Methods." Electronics 12, no. 14 (July 18, 2023): 3122. http://dx.doi.org/10.3390/electronics12143122.

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This paper is aimed at making new proposals for developing future Electro-Magnetic Compatibility (EMC) standards tailored to DC microgrids in a frequency range between 9 and 500 kHz. In particular, new EMC proposals are made to reduce Electro-Magnetic Interference (EMI) with arc hazard detection and narrowband power line communication (PLC). To achieve this, first, arc detection requirements, PLC standards and existing EMC standards are reviewed. Next, new proposals are made to specify EMC requirements for equipment in DC microgrids in terms of conducted emission, immunity (9–500 kHz) and minimum impedance requirement (>40 kHz). The minimum impedance requirement is a new type of requirement and the relevant compliance testing method is developed. The new EMC proposals also distribute frequency bands to support arc detection and narrowband PLC. Then, to show the feasibility and advantage of proposed EMC codes, this paper develops a new arc detection method, which relies on only measuring the arc noise voltage (40–100 kHz) in a single point of the grid and does not need one or more current measurements. A total of three test cases are presented to show the feasibility of the arc detection method and the significance of having an EMC minimum impedance requirement. The executed tests for this paper also show that new EMC proposals are feasible and promising for DC microgrids. This concept and approach are the major novelties of this paper. The specific EMC threshold levels for conducted noise, immunity, and impedance within a frequency range between 9 and 500 kHz will need to be further fine-tuned based on the microgrid application parameters and further gathering of experimental data.

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Li, Meng, Yinghong Wen, Guodong Wang, Dan Zhang, and Jinbao Zhang. "A Network-Based Method to Analyze EMI Events of On-Board Signaling System in Railway." Applied Sciences 10, no. 24 (December 18, 2020): 9059. http://dx.doi.org/10.3390/app10249059.

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The On-board Train Control System (OTCS) plays an important role in the real-time operation of the electric multiple units (EMU) in high-speed railway. The EMU is a complex system made up of various electrical and electronic equipment, so the interactions of the electromagnetic (EM) environment and OTCS are difficult to study, which leads to more challenges to analyze EM interference (EMI) events at the system level. To overcome this difficulty, this paper proposes the thought of a graph model to solve the problem. First, a framework is proposed to more clearly reflect the relationship between the EMC (Electromagnetic Compatibility) problem and network through a comparison with them. Second, a network theory-based model is presented to express the EMC elements for the OTCS in EMU. It decomposes the OTCS and EMU with EMC elements into edges and nodes of the network, which parameters are defined corresponding to EM sources, sensitive equipment, and coupling paths. Thus, each part could be modeled separately or together by calculation, simulation, or measurement, respectively, and the EMC problem could be represented by the paths from origin to destination in the network. Moreover, the modeling process was elucidated by the specific cases in OTCS and the validity of the proposed approach was verified by calculation and measurement results in the case study.

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Journal articles on the topic 'EMI/EMC'

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