{"title":"An FPGA implementation of a brushless DC motor speed controller","authors":"B. Alecsa, A. Onea","doi":"10.1109/SIITME.2010.5653617","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5653617","url":null,"abstract":"The spreading of brushless DC (BLDC) motors has imposed the need for efficient and low cost motor control drives. In this paper, a low cost digital controller is presented. For experimental testing, the controller is implemented inside a field programmable gate array (FPGA) device. The developed design is validated in a modular fashion by logic simulation and experimental results are provided. The main contribution is the presented controller design methodology for FPGA implementation.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127174898","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":"E-learning packaging technologies course in the frame of the MSYSTECH European project","authors":"M. Pantazica, N. Codreanu, P. Svasta, C. Ionescu","doi":"10.1109/SIITME.2010.5650874","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5650874","url":null,"abstract":"The paper presents the e-learning “Packaging Technologies” course developed in the frame of the mSysTech (E-Training Microsystems Technologies) European project. The objective of this multi-media course is to introduce the learners in microsystems packaging technologies, including design, analysis, fabrication, assembling, characterization and testing. In addition, this course will also introduce the most recent developments of micro-/nano-fabrication technologies.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127353438","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}
I. Plotog, G. Vărzaru, R. Bunea, I. Busu, T. Cucu, P. Svasta
{"title":"Investigation on the efficiency of thermal relief shapes on different Printed Circuit Boards","authors":"I. Plotog, G. Vărzaru, R. Bunea, I. Busu, T. Cucu, P. Svasta","doi":"10.1109/SIITME.2010.5650836","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5650836","url":null,"abstract":"As known, thermal relief is a technique used to separate soldering pads or plated through-hole vias from large copper planes in order to reduce soldering dwell time by providing thermal resistance during the process, thus minimizing the heat transfer to the plane. However, during normal operation, the same thermal resistance limits the heat transfer for power component dissipation. The narrower the thermal pad, the greater temperature increasing during power dissipation. Hence, the dimensions of the thermal pads are critical. The work presents the results of a practical approach not for a hole via or a pad for an ordinarily component connected to a large copper area, but a medium power Surface Mounting Device, SMD, using the Printed Circuit Board, PCB, as heat sink. There are taken into consideration different thermal pads and there are investigated by temperature measurements with thermocouples and thermovision. The variables are the thermal pad dimensions, the area of the radiant surface, the base material of PCB, and the reflow soldering process. It is analyzed the effect of the thermal pad versus the temperature on the soldering pad and beyond the thermal pad and on the case of the device during reflow soldering process and during operation","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126764578","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}
V. Stefanescu, Christian Faye, D. Stoichescu, A. Florescu
{"title":"Modeling and simulation of Cylindrical PET 2D using direct inversion method","authors":"V. Stefanescu, Christian Faye, D. Stoichescu, A. Florescu","doi":"10.1109/SIITME.2010.5653649","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5653649","url":null,"abstract":"Our purpose is to model the imaging process in 2D PET imagery. More directly, considering a unit point source located at point Mn and emitting pairs of opposite twin photons in an isotropic way and a pair of non adjacent detectors (i, j) located on the detector ring, our objective is to determine the proportion of the flux emitted at point Mn which jointly hits the detector pair (i, j).","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130525645","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}
D. Stoichescu, A. Florescu, A. Vasile, Alina Sultana
{"title":"Matlab implementation of PEM fuel cell stack membrane hydration subsystem","authors":"D. Stoichescu, A. Florescu, A. Vasile, Alina Sultana","doi":"10.1109/SIITME.2010.5653396","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5653396","url":null,"abstract":"The membrane hydration subsystem belonging to the block diagram of a PEM fuel cell stack is considered and some of its equations are implemented by Matlab.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114821388","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":"An RFID tag simulator for the FDX and HDX protocols","authors":"D. Vuza, S. Chițu, P. Svasta","doi":"10.1109/SIITME.2010.5653722","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5653722","url":null,"abstract":"A tag simulator is a device that can exchange data with an RFID reader in the same way as a real transponder. It may be of help for reader developers in the process of testing the device response and adjusting the communication algorithms. It may equally help system integrators in testing and tuning the performance of the complete RFID system that comprises the readers, the network to which they are connected and the database. The simulator described here is based on the Atmel AT91SAM7S64 micro-controller and covers the “transponder talk first” protocols of full duplex (FDX) and half duplex (HDX) types for the carrier frequencies of 125 KHz and 134.2 KHz.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126260135","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":"Power transformers model used for inverters simulations","authors":"A. Taut, O. Pop, S. Lungu","doi":"10.1109/SIITME.2010.5649130","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5649130","url":null,"abstract":"This paper intends to present a model of power transformers used in simulation of power inverters. Electromagnetic induction refers to the phenomenon by witch electric current is generated in a closed circuit by the fluctuation of current in another circuit placed next to it. For modeling of power transformers, we implemented a Matlab software, based on mathematical equations who describe the functionality of power transformers. Also we compare the Matlab results with a Pspice simulations results. Matlab program that we've implemented enables the modification of input parameters of the transformer and the choice of a circuit to be analyzed. Also the Matlab model permits to view the waveforms of circuits in transient or steady state regime.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130456630","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":"Optimization of a boost switching-mode power supply using electro-thermal modeling and simulation","authors":"C. Negrea, M. Rangu, P. Svasta","doi":"10.1109/SIITME.2010.5650828","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5650828","url":null,"abstract":"One of the major drawbacks in the typical design flow of electronic equipment is the lack of synchronization between design stages. Schematic design and thermal management are rarely correlated, although electrical and thermal parameters are very closely linked. Poor thermal design can have severe consequences on the reliability and functionality of the equipment and is often the main cause of component failure. As power density increases on the printed circuit board this problem becomes critical. Our paper presents a method of mixing electrical and thermal simulation with the goal of improving functional parameters and thermal stress behavior. Switching-mode power supply circuits have high power density and are likely to fail due to thermal stress, so as a support application for our method we will use a boost switching-mode power supply designed for automotive use.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116946925","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}
R. Bátorfi, Z. Illyefalvi-Vitéz, G. Wendin, H. Heinzelmann, D. Demarchi, P. Civera
{"title":"Euro training courses of microsystems technology and nanotechnology for electronics","authors":"R. Bátorfi, Z. Illyefalvi-Vitéz, G. Wendin, H. Heinzelmann, D. Demarchi, P. Civera","doi":"10.1109/SIITME.2010.5653755","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5653755","url":null,"abstract":"EuroTraining is the part of the EC initiated Europractice service, which aims to stimulate the wider exploitation of state-of-the-art micro/nano electronics and microsystem technologies by the European industry and academia. EuroTraining invites engineers and scientists from companies, SMEs, universities and institutes to upgrade their knowledge by professional and awareness courses entitled “Design Your Own Microsystem” and “Nanotechnology for Electronics”. The courses were lectured by highly qualified experts in cooperation with local scientists, whose institutes were also invited to facilitate further scientific connection between the course participants and the national institute. A large emphasis were put on multidisciplinarity, as trends point to integration, therefore, the courses have been developed for engineers coming from a very different background (electrical-, biomedical-, chemical-, mechanical engineers) and for physicists, medical doctors, chemists, etc. The courses were very successful, participants benefited much from that they have learned: refreshed and widened their knowledge, and might open new opportunities in their studies and careers.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132438602","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 student's point of view on engineering practice","authors":"Pitica Madalina Dana","doi":"10.1109/SIITME.2010.5650818","DOIUrl":"https://doi.org/10.1109/SIITME.2010.5650818","url":null,"abstract":"The purpose of the paper is to give an insight on what packaging and hands-on abilities are learned through the process of engineering practice and why this stage is of great importance in the development of future engineers. Although the basis of student's knowledge is learned during faculty year's classes, it has been widely shown that the easiest way of developing practical skills is done during practice stages either in universities or in private companies [1]. During one such stage the student improves his or hers skills in areas such as researching, computer simulation, interface developing, and of course, maybe most important, packaging. The practice stages offer the student the possibility of implementing circuits and projects, either by realizing testing boards or by using breadboards [2]. These are skills that are rarely attained during faculty classes due to the fact that there is not enough time for each student to implement projects during laboratories. This is why practice stages are the ones that truly give the student a basis in electronic packaging.","PeriodicalId":155180,"journal":{"name":"2010 IEEE 16th International Symposium for Design and Technology in Electronic Packaging (SIITME)","volume":"304 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122723805","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}