{"title":"Cross-platform sensor networks","authors":"Milen Todorov, B. Nikolova, G. Nikolov","doi":"10.1109/ET.2017.8124395","DOIUrl":"https://doi.org/10.1109/ET.2017.8124395","url":null,"abstract":"The development of wireless sensor networks offers new challenges for engineers and scientists from different technological areas. The involving of various hardware and software platforms in the implementation and design of sensor node increases the capabilities of sensor networks. Also, cloud services provide effective network management and access to stored data, detected and measured by sensors in the sensor network. This paper presents an approach for developing heterogeneous sensor networks and connecting it with cloud services.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129080171","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}
Lai Thi Van Quyen, N. M. Thang, Nguyen Hong Vu, Nguyen The Truyen, V. Malyugin, D. Kiesewetter
{"title":"Device for measuring parameters of the meteorological precipitation","authors":"Lai Thi Van Quyen, N. M. Thang, Nguyen Hong Vu, Nguyen The Truyen, V. Malyugin, D. Kiesewetter","doi":"10.1109/ET.2017.8124364","DOIUrl":"https://doi.org/10.1109/ET.2017.8124364","url":null,"abstract":"The operation principle of the optical device for determine the size and velocity of rain drops and measuring the level of meteorological precipitation is described. Cases of application of the slit-type diaphragm and arrays of photodiodes with defined parameters are shown. The design of the device and methods of processing signals to generate calibration coefficients used to determine the droplet size are described. The results of the laboratory tests of the device are presented.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128913210","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}
{"title":"Design of' a MOSFET bypass switch for individual pixel control in a matrix LED headlamp application","authors":"E. Kovatchev","doi":"10.1109/ET.2017.8124358","DOIUrl":"https://doi.org/10.1109/ET.2017.8124358","url":null,"abstract":"A low-cost, high performance solution for single LED control in a matrix LED configuration is presented in this paper. The integrated solutions on the chip market are evaluated and an improved discrete, robust LED bypass circuit is designed und simulated. A complex prototype PCB with the proposed LED bypass circuit has been designed and thoroughly investigated. The performance of the proposed LED bypass solution has been evaluated in terms of speed, resolution and power losses.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120857311","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}
{"title":"Investigation and analysis of the modified phase-shifted pulse modulation resonant DC/DC converter","authors":"T. Grigorova, A. Lechkov, B. Pachedjieva","doi":"10.1109/ET.2017.8124346","DOIUrl":"https://doi.org/10.1109/ET.2017.8124346","url":null,"abstract":"In this paper an investigation and analysis of the modified phase-shifted pulse modulation (PSPM) DC/DC resonant converter topology, is presented. The possibilities for achieving soft switching conditions with high-efficiency operation in a wide range of power regulation activities will be investigated. In the paper, the first harmonic analysis method can be employed to develop expressions for the output circuit variables of the of the modified PSPM DC/DC resonant converter. The results of the analysis are confirmed with computer simulations.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"287 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120878069","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}
{"title":"Arduino based module for return electrode contact quality monitoring in the electrosurgical instruments","authors":"G. Petrova, Georgi Yanev, G. Spasov","doi":"10.1109/ET.2017.8124379","DOIUrl":"https://doi.org/10.1109/ET.2017.8124379","url":null,"abstract":"The paper describes the development and realization of an Arduino based module for monitoring the contact quality of the patient returned electrode in the electrosurgical instrument. The module is designed in accordance with the requirements of the standard IEC 60601-2-2:209 for protection against electrical hazards from medical equipment. The experimental results of performed tests with 3 patients are presented and discussed.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123287690","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}
{"title":"Mixed signals technique for offset reductions","authors":"D. G. Vrachkov, D. Todorov","doi":"10.1109/ET.2017.8124407","DOIUrl":"https://doi.org/10.1109/ET.2017.8124407","url":null,"abstract":"This article, discusses the problem with the influence of offset voltages and their drives generated in the measuring system in the process of forming a digital equivalent to a pre-formed value. A method and a schematic solution are proposed to reduce the total offset voltages in a measuring line, based on the mixed signal technology. Its limitations have been defined in relation to transformation time intervals and generated internal parasitic charges. It's explored a methodology for the construction of a measurement unit, minimizing to the noise level the impact of the offset voltages in the whole measuring system. The sources that cause noise components in the digital output are defined and the guidelines for their minimization are specified.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126450723","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}
M. Antonova, R. Asfandiyarov, R. Bayes, P. Benoit, A. Blondel, M. Bogomilov, A. Bross, F. Cadoux, A. Cervera, N. Chikuma, A. Dudarev, T. Ekelöf, Y. Favre, S. Fedotov, Sven-Patrik Hallsjö, A. Ichikawa, A. Izmaylov, Y. Karadzhov, M. Khabibullin, A. Khotyantsev, A. Kleymenova, T. Koga, A. Kostin, Y. Kudenko, V. Likhacheva, B. Martinez, R. Matev, M. Medvedeva, A. Mefodiev, A. Minamino, O. Mineev, G. Mitev, M. Nessi, L. Nicola, E. Noah, T. Ovsiannikova, H. Silva, S. Parsa, M. Rayner, G. Rolando, A. Shaykhiev, P. Simion, P. Soler, S. Suvorov, R. Tsenov, H. T. ten Kate, G. Vankova-Kirilova, N. Yershov
{"title":"Synchronization of the distributed readout frontend electronics of the Baby MIND detector","authors":"M. Antonova, R. Asfandiyarov, R. Bayes, P. Benoit, A. Blondel, M. Bogomilov, A. Bross, F. Cadoux, A. Cervera, N. Chikuma, A. Dudarev, T. Ekelöf, Y. Favre, S. Fedotov, Sven-Patrik Hallsjö, A. Ichikawa, A. Izmaylov, Y. Karadzhov, M. Khabibullin, A. Khotyantsev, A. Kleymenova, T. Koga, A. Kostin, Y. Kudenko, V. Likhacheva, B. Martinez, R. Matev, M. Medvedeva, A. Mefodiev, A. Minamino, O. Mineev, G. Mitev, M. Nessi, L. Nicola, E. Noah, T. Ovsiannikova, H. Silva, S. Parsa, M. Rayner, G. Rolando, A. Shaykhiev, P. Simion, P. Soler, S. Suvorov, R. Tsenov, H. T. ten Kate, G. Vankova-Kirilova, N. Yershov","doi":"10.1109/ET.2017.8124369","DOIUrl":"https://doi.org/10.1109/ET.2017.8124369","url":null,"abstract":"Baby MIND is a new downstream muon range detector for the WGASCI experiment. This article discusses the distributed readout system and its timing requirements. The paper presents the design of the synchronization subsystem and the results of its test.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126125881","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}
{"title":"Analysis and improvements of a buck converter based LED driver","authors":"V. Valchev, D. Mareva, D. Yudov","doi":"10.1109/ET.2017.8124400","DOIUrl":"https://doi.org/10.1109/ET.2017.8124400","url":null,"abstract":"This paper studies a buck converter based LED driver with a current control method. A wide input voltage range is considered as well as the power factor of the circuit. To improve the efficiency soft switching conditions are provided. Simulations and experimental investigation is carried out to obtain the converter performance relations. An advanced inductor design is applied in order to reduce the eddy current losses in windings due to air gap fringing field. Combined Litz wire — full wire approach is considered to reduce the effect of air gap fringing field. Experimental results and measurements confirm the simulation results and performance of the investigated converter.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131733380","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}
{"title":"Testing of digital filters for power-line interference removal from ECG signals","authors":"G. Mihov, D. Badarov","doi":"10.1109/ET.2017.8124368","DOIUrl":"https://doi.org/10.1109/ET.2017.8124368","url":null,"abstract":"A procedure for testing digital filters for power line interference removal from ECG signals is proposed in this article. The testing procedure is developed in a MatLab environment. It allows different filters to be tested and compared based on the residual error from the filtration. A procedure for measurement the frequency and the amplitude of the power line interference is also developed.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133966110","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}
{"title":"A control technique for a bidirectional series resonant DC-DC converter","authors":"A. Vuchev, N. Bankov, A. Lichev","doi":"10.1109/ET.2017.8124409","DOIUrl":"https://doi.org/10.1109/ET.2017.8124409","url":null,"abstract":"The following paperwork considers a bidirectional series resonant DC-DC converter operating above the resonant frequency with the usual phase-shift control. Its features are discussed. Some of the converter disadvantages are proposed to be compensated by means of a control technique. For this purpose, simultaneous phase-shift and frequency control is applied. The advantages of the proposed solution are verified by computer simulations.","PeriodicalId":127983,"journal":{"name":"2017 XXVI International Scientific Conference Electronics (ET)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134276158","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}
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