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2014 14th Biennial Baltic Electronic Conference (BEC)最新文献

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Considerations on practical implementation of control system for switch mode current regulator 开关式电流调节器控制系统实际实施的思考
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320597
O. Tetervenoks, I. Galkin
{"title":"Considerations on practical implementation of control system for switch mode current regulator","authors":"O. Tetervenoks, I. Galkin","doi":"10.1109/BEC.2014.7320597","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320597","url":null,"abstract":"The conventional approach in modern LED drivers is the usage of voltage regulators with rapid current feedback (current limit). Previously, the authors hypothesized that the current regulators can provide some advantages compared to the voltage regulators in LED lighting applications. Previous studies were related with theoretical basis and experimental verification of this hypothesis. This paper refers to the several aspects for practical implementation of current regulators. The object of study is non-inverting buck-boost considered as a combination of two stages: constant current source and current regulator. Different approaches for the implementation of control system are considered in this paper and are compared at the end.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126431570","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
Constitutive Currents and Power Components for polyphase load analysis under nonsinusoidal and unbalanced conditions 非正弦和不平衡条件下多相负载分析的本构电流和功率分量
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320603
D. Jeltsema, M. Hartman, J. van der Woude
{"title":"Constitutive Currents and Power Components for polyphase load analysis under nonsinusoidal and unbalanced conditions","authors":"D. Jeltsema, M. Hartman, J. van der Woude","doi":"10.1109/BEC.2014.7320603","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320603","url":null,"abstract":"The recently proposed Constitutive Currents and Power Components (C2PC) framework for the analysis of single-phase nonsinusoidal systems is extended further to polyphase unbalanced networks. The C2PC decomposition provides a time-domain refinement of the Currents' Physical Components (CPC) approach. A particularly appealing feature of the C2PC framework is that it does not require the load admittance.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132650853","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
Development of 802.11p testbed - experiences 802.11p测试平台的开发-经验
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320575
A. Mednis
{"title":"Development of 802.11p testbed - experiences","authors":"A. Mednis","doi":"10.1109/BEC.2014.7320575","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320575","url":null,"abstract":"802.11p, a standard for communication in vehicular domain, has specifics like frequency band of 5.9 GHz and mobile network nodes travelling by road with supporting infrastructure. These aspects are integral for limited simulation possibilities as well as for need for appropriate real world testbed solutions. The contribution of this paper are experiences from development of 802.11p testbed solution including PC Engines ALIX.2 based vehicle unit and road side unit prototypes and their evaluation using laboratory and field tests.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131996671","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
250nA quiescent current high PSRR voltage reference in standard CMOS process 标准CMOS工艺中250nA静态电流高PSRR基准电压
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320552
S. Strik, V. Strik
{"title":"250nA quiescent current high PSRR voltage reference in standard CMOS process","authors":"S. Strik, V. Strik","doi":"10.1109/BEC.2014.7320552","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320552","url":null,"abstract":"Power efficiency is very important in portable devices as well as noise immunity of analog ICs. This article describes a voltage reference circuit that operates with extremely low quiescent current (below 250 nA) and is compatible with a standard CMOS process. It is optimally designed for a wide range of applications such as portable electronic devices, automotive, medical equipment, including system-on-chip (SoC) implementation where high-power supply rejection ratio (PSRR) and switching noise immunity are very important. The described voltage reference provides up to 90 dB at low frequencies. Standard deviation of the output voltage variation is 0.5% with a temperature coefficient of 15 ppm/°C at -40°C to 125°C temperature range. These characteristics are achievable at 1.6V to 5.5V supply voltage range. Various design approaches for input noise immunity of voltage reference are implemented.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129248447","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
Miniaturized wireless monitor for long-term monitoring of newborns 用于新生儿长期监护的小型化无线监护仪
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320589
Mairo Leier, Gert Jervan
{"title":"Miniaturized wireless monitor for long-term monitoring of newborns","authors":"Mairo Leier, Gert Jervan","doi":"10.1109/BEC.2014.7320589","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320589","url":null,"abstract":"Wireless infant monitoring system is a small-size wearable sensor platform. There is a growing trend to simplify the measuring methods to allow a real-time monitoring of the vital signals in home environment. Most of these devices have cables, are quite large in size that may disturb infant's everyday life and need continuous supervising from parent. In this paper we propose a monitoring system that detects the most important vital signals of baby and transmits results over wireless link to the control device that could be any smart-phone. The system is capable of measuring blood oxygen level, heart rate, respiration rate, body temperature, body posture and legs activity. Combining all of these raw signals it is possible to use this system in different, possible life-threatening situations during long-term monitoring. Compared to other similar solutions it has small dimensions, low weight, increased reliability of measuring photoplethysmography signal and extended battery life because of the usage of Bluetooth Smart wireless protocol.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117344752","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
7-valued algebra for transition delay fault analysis 转换延迟故障分析的7值代数
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320563
J. Kousaar, R. Ubar
{"title":"7-valued algebra for transition delay fault analysis","authors":"J. Kousaar, R. Ubar","doi":"10.1109/BEC.2014.7320563","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320563","url":null,"abstract":"A novel transition delay fault (TDF) analysis algorithm based on 7-valued algebra is presented. The algorithm classifies the fault detection conditions into four classes: robust, non-robust robust functional sensitization, and non-robust functional sensitization of transition delay faults. The last class is introduced the first time. A new method is presented for calculation of the TDF coverage for all the four sensitization classes.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116034264","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: 1
Precise event timing realisation and its application for signal analysing 精确事件定时的实现及其在信号分析中的应用
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320585
V. Bes'palko, E. Boole, V. Vedin
{"title":"Precise event timing realisation and its application for signal analysing","authors":"V. Bes'palko, E. Boole, V. Vedin","doi":"10.1109/BEC.2014.7320585","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320585","url":null,"abstract":"The Riga event timers use a specific event timing method based on Digital Signal Processing and already offer the resolution and measurement speed that are quite enough for Satellite Laser Ranging applications. But taking into account another possible applications there are some drawbacks such as not fully proven measurement resolution specified using uncertified test signal sources, insufficient calibration stability and repeatability, relatively low interface speed, and other minor ones. Addressing these drawbacks along with the improvement of the performance parameters has been covered in this paper. Some examples of applications for signal analysis are considered too.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631750","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: 1
Virtual Reality visualization for short fibre orientation analysis 短纤维取向分析的虚拟现实可视化
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320591
Emiliano Pastorelli, H. Herrmann
{"title":"Virtual Reality visualization for short fibre orientation analysis","authors":"Emiliano Pastorelli, H. Herrmann","doi":"10.1109/BEC.2014.7320591","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320591","url":null,"abstract":"The paper investigates the beneficial contribution of visual feedback in the development of an algorithm for the automatized analysis of fibre orientations in short fibre reinforced composites. Of special interest was steel fibre reinforced concrete (SFRC), a multi-disciplinary research area involving material sciences, physics and civil engineering. More in detail, this paper explains how scientific visualization techniques, employed on a Virtual Reality environment, contribute to the understanding of the SFRC properties, both for research and educational aims. Furthermore, the analysis algorithm to obtain fibre orientation distributions from noisy tomography scans is presented.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124082715","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
Signal activity-dependent analog-to-digital conversion 信号活动相关的模数转换
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320584
I. Homjakovs
{"title":"Signal activity-dependent analog-to-digital conversion","authors":"I. Homjakovs","doi":"10.1109/BEC.2014.7320584","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320584","url":null,"abstract":"This paper presents an adaptive sampling approach in which analog signal samples are taken depending on its activity. By using the proposed approach the number of A/D conversions and therefore the resulting number of samples can be reduced during inactive periods of an analog signal. The proposed method is beneficial for ultra-low power circuits, e.g. sensors networks, where the nodes are idle most of the time, yet, in conventional sampling approach, the samples would be taken even if analog input signal is constant. Since all samples have to be transmitted at some point, this causes unnecessary energy consumption even if analog signal contains no useful information. Proposed sampling scheme allows achieving high data compression rate and reduction of energy consumption. Proposed implementation of signal activity-dependent sampling and power consumption analysis are presented in this paper. In addition, the circuit that tracks the variation of analog input signal is presented.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124183668","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: 1
Multi-domain characterization of semiconductor devices 半导体器件的多域特性
2014 14th Biennial Baltic Electronic Conference (BEC) Pub Date : 2014-10-01 DOI: 10.1109/BEC.2014.7320545
A. Poppe
{"title":"Multi-domain characterization of semiconductor devices","authors":"A. Poppe","doi":"10.1109/BEC.2014.7320545","DOIUrl":"https://doi.org/10.1109/BEC.2014.7320545","url":null,"abstract":"Today thermal issues are among the main bottlenecks of microelectronics and solid-state lighting. Mitigation to thermal problems of ICs is provided either by new, more efficient cooling technologies or by thermal aware design tools, including electro-thermal or logi-thermal simulation. In solid-state lighting the situation is somewhat similar: replacement of high-intensity discharge lamps is still hampered by cooling problems. In case of LEDs not only the thermal and electrical operation of the diode is to be modeled and simulated - the electro-thermal behavior also needs to be tightly coupled to modeling and simulation of the light output, hence, a real multi-domain characterization from measurements on component level to simulation on system level is required. This paper aims to provide an overview of measurement, modeling and simulation techniques in which the semiconductor devices are characterized in all of their relevant operating domains in a self-consistent way.","PeriodicalId":348260,"journal":{"name":"2014 14th Biennial Baltic Electronic Conference (BEC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127706861","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
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