发布求助
文献互助 智能选刊 最新文献

2018 IEEE XXVII International Scientific Conference Electronics - ET最新文献

筛选
英文 中文
Accuracy Characteristics Of Space Optical Communication Systems In Photon Counting Mode 光子计数模式下空间光通信系统的精度特性
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549600
B. Pachedjieva
{"title":"Accuracy Characteristics Of Space Optical Communication Systems In Photon Counting Mode","authors":"B. Pachedjieva","doi":"10.1109/ET.2018.8549600","DOIUrl":"https://doi.org/10.1109/ET.2018.8549600","url":null,"abstract":"The characteristics of optical communication system the type “Space-to-Earth” are investigated. Analytical results for the signal-to-noise ratio for photon counting regime depending on signal registration time intervals are obtained. Expressions describing strong influence of inertia of the photon counting system over dependencies of characteristics of the system from the link range were taken out. Numerical examples, illustrated by graphic material, have been shown.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125271386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Contactless transmission of power and control signals by multiplexing the frequency 通过多路复用频率实现电力和控制信号的非接触传输
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549645
N. Madzharov, Lyudmil Petkov, P. Kogias, K. Karakoulidis
{"title":"Contactless transmission of power and control signals by multiplexing the frequency","authors":"N. Madzharov, Lyudmil Petkov, P. Kogias, K. Karakoulidis","doi":"10.1109/ET.2018.8549645","DOIUrl":"https://doi.org/10.1109/ET.2018.8549645","url":null,"abstract":"For contactless power transmission systems, the actual scientific topic is the parallel two-way communication between the transmitting and receiving sides through the same power electromagnetic module. This technical solution enables the removal of the additional contactless module for the transmission of information and control signals and respectively, for improvement of the operational and technical characteristics of the contactless transmitters. This paper examines inductive methods that integrate bidirectional data transmission in the power module system for energy transfer. Various methods for the simultaneous transmission of energy and data are analyzed. Main attention is paid to the frequency multiplexing method, with its advantages over other methods.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115670135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Electrical Losses in Semiconductor Devices during Control of the Processes 控制过程中半导体器件的电损耗
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549616
S. Filipova-Petrakieva, Y. Shopov
{"title":"Electrical Losses in Semiconductor Devices during Control of the Processes","authors":"S. Filipova-Petrakieva, Y. Shopov","doi":"10.1109/ET.2018.8549616","DOIUrl":"https://doi.org/10.1109/ET.2018.8549616","url":null,"abstract":"Electrical losses are significant for the normal work of semiconductor devices (diodes, transistors, thyristors, symistors (triaks), dynistors, etc In this paper, the phase control of a thyristor circuit activated by an AC voltage source with varying frequencies is analyzed. The formulas for the average $I_{av}$ and the effective $I_{RMS}$ values of the current and the average power $P_{av}$ as functions of the firing angle $alpha $ and a frequency $f$ have been worked out. Criterion for determining the maximum admissible firing angle $alpha $ of the thyristors in case of different frequencies has been suggested. The paper finishes with conclusion remarks for the AC supply voltage stabilization in phase control of the average value of the AC current flowing through a load.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114695643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Reliability Modeling of MOSFETs in Resonant Full Bridge Inverter 谐振式全桥逆变器中mosfet的可靠性建模
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549590
Dimitar Zlatev, A. Georgiev, T. Papanchev, J. Garipova, Tereza Stefanova Stefanova
{"title":"Reliability Modeling of MOSFETs in Resonant Full Bridge Inverter","authors":"Dimitar Zlatev, A. Georgiev, T. Papanchev, J. Garipova, Tereza Stefanova Stefanova","doi":"10.1109/ET.2018.8549590","DOIUrl":"https://doi.org/10.1109/ET.2018.8549590","url":null,"abstract":"This paper concerns reliability modeling of the MOSFET transistors in a full bridge inverter with series resonance at the load circuit. Taking into account the resonant process and its parameters a model concerning transistors reliability in such an inverter is obtained. The dependencies of the MOSFETs reliability on some of the resonant circuit parameters are shown in a graphical form.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"317 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123156146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Investigations on Heat Extraction in Multilayer PCB Structures 多层PCB结构的热抽取研究
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549638
S. Andreev, N. Spasova, D. Chikurtev
{"title":"Investigations on Heat Extraction in Multilayer PCB Structures","authors":"S. Andreev, N. Spasova, D. Chikurtev","doi":"10.1109/ET.2018.8549638","DOIUrl":"https://doi.org/10.1109/ET.2018.8549638","url":null,"abstract":"This article presents experiments of the measurement of heat transfer in multilayer structures of FR4 material with different topologies at the first and second levels in the presence of thermoal vias. For the purpose of the experiment a power diode in SMC package is used as heat source and copper pads are placed on the second conductive layer in order to extract the heat. The thermoal vias, connecting the top solder pads and the copper pads, are designed with a different diameter and the structures are electrically charged. The goal is to investigate the change in the diode temperature when applying a different power supply. This article illustrates the heat dissipation dependence on the diameter and thickness of the thermal-vias. The measurement of the temperatures for obtaining the results is done by a thermal camera FLIR P640.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121400270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Measurement of Impedance with Computer Controlled Setup 用计算机控制装置测量阻抗
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549594
I. Zhivkov, Ivan Todorov, Michal Hrabal, R. Yordanov, M. Vala
{"title":"Measurement of Impedance with Computer Controlled Setup","authors":"I. Zhivkov, Ivan Todorov, Michal Hrabal, R. Yordanov, M. Vala","doi":"10.1109/ET.2018.8549594","DOIUrl":"https://doi.org/10.1109/ET.2018.8549594","url":null,"abstract":"Setup for impedance measurement based on AD5933 chip was accomplished and tested with measurement of control samples and AC electroluminescent structures. It was found that the time of the measurement is not limited by MCLK but depends on the period of the excitation frequency, which is processed in the digital modules of AD5933. The measurement performed is in a good agreement with data taken from control impedance analyzer.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125860473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling and Research of Magnetic Flux Generator 磁通发生器的建模与研究
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549596
B. Sokerov, Dimitar D. Arnaudov
{"title":"Modeling and Research of Magnetic Flux Generator","authors":"B. Sokerov, Dimitar D. Arnaudov","doi":"10.1109/ET.2018.8549596","DOIUrl":"https://doi.org/10.1109/ET.2018.8549596","url":null,"abstract":"In this paper will be briefly described way of generating controllable magnetic flux in several axes by forcing bipolar current thru air inductors arranged in Helholtz configuration. Presented is way of inductors software modeling. Considered are several ways for design of power supplies for the inductors taking into account all specific requirements.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134041011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A Study into the Relationship between the Procedures for the Pole Placement Problem and Linear Quadratic Regulator 极点布置问题的求解过程与线性二次型调节器的关系研究
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549659
Nasko Atanasov, M. Alexandrova, Ivan V. Grigorov, I. Zlateva
{"title":"A Study into the Relationship between the Procedures for the Pole Placement Problem and Linear Quadratic Regulator","authors":"Nasko Atanasov, M. Alexandrova, Ivan V. Grigorov, I. Zlateva","doi":"10.1109/ET.2018.8549659","DOIUrl":"https://doi.org/10.1109/ET.2018.8549659","url":null,"abstract":"The present article investigates state feedback control systems synthesis. The synthesis is usually related to pole placement problem (PPP) solution or linear quadratic regulator (LQR) problem solution. Both methods have their disadvantages. In this relation the present investigation aims to overcome those disadvantages and suggests a proper combination for application of both in the synthesis process..","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134556457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spectral-correlation method of investigation of highvoltage electrical insulation components 高压电气绝缘元件的光谱相关研究方法
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549634
D. Kiesewetter, V. Malyugin, A. Reznik, N. Zhuravleva
{"title":"Spectral-correlation method of investigation of highvoltage electrical insulation components","authors":"D. Kiesewetter, V. Malyugin, A. Reznik, N. Zhuravleva","doi":"10.1109/ET.2018.8549634","DOIUrl":"https://doi.org/10.1109/ET.2018.8549634","url":null,"abstract":"The description of the experimental method and setup for investigation of homogeneity of high-voltage electrical insulation components by spectral correlation method is given. The basic principle of the spectral-correlation method and method of processing of the received images are discussed. The results of studies of electrical insulation paper made of coniferous wood, in particular pine, as well as bamboo, bacterial cellulose, contaminated dielectric fluids and cross-linked polyethylene (XPLE) are presented. The opportunity of using spectral correlation method to determine the parameters of high-voltage insulation for electrical and electronic engineering is shown.","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"23 40","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114043697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Shieldless Eddy-Current Displacement Sensor with Improved Measurement Sensitivity 改进测量灵敏度的无屏蔽涡流位移传感器
2018 IEEE XXVII International Scientific Conference Electronics - ET Pub Date : 2018-09-01 DOI: 10.1109/ET.2018.8549631
J. Vogel, V. Chaturvedi, S. Nihtianov
{"title":"Shieldless Eddy-Current Displacement Sensor with Improved Measurement Sensitivity","authors":"J. Vogel, V. Chaturvedi, S. Nihtianov","doi":"10.1109/ET.2018.8549631","DOIUrl":"https://doi.org/10.1109/ET.2018.8549631","url":null,"abstract":"The major limitations of eddy-current displacement sensors, such as low measurement sensitivity and low stability, can be mitigated by using low-inductance flat coils in combination with a ratiometric measurement and a high excitation frequency, thus making eddy-current sensors of interest for high-precision applications. For the ratiometric measurement, the sensing coil is used in combination with a constant inductance reference coil, which are magnetically isolated from each other by a shield. In this paper, the implications of omitting the shield are studied. It is shown that a shieldless design brings several advantages related to sensitivity, compactness and manufacturability","PeriodicalId":374877,"journal":{"name":"2018 IEEE XXVII International Scientific Conference Electronics - ET","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115807327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信