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Production of Multilayer PCB
Janda, Ondřej ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
This master thesis introduces the problematics of multilayer printed circuit boards. Theoretical part is focused on materials used for production of multilayer PCB and their parameters. At the same time, it focuses on the pressing process of multi-layered PCB, the types of presses used and their advantages and disadvantages. Practical part describes the methodology and testing of the PCB to identify the reliability of chosen electrical parameters. Testing is aimed to simulate thermal stress during machine soldering and during thermal stress in the target environment.
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Analysis and Architecture of Žádost o důchod online Application
Zatloukal, Marek ; Luhan, Jan (referee) ; Kříž, Jiří (advisor)
The diploma thesis is focused on software analysis and architecture of the eGovernment application – Žádost o důchod online. It includes theoretical background describing the basic concepts of the issue, the analytical part, which defines starting points, requirements, current state of pension application and completed analytical models. Practical part contains analytical and architecture models describing specific areas of the newly emerging application Žádost o důchod online.
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Sputtering of thin conductive layers
Sloboda, Alexander ; Vaněk, Jiří (referee) ; Zatloukal, Miroslav (advisor)
This bachelor’s thesis is focused on the issues of thin films, especially thin transparent conductive films, and their deposition on substrate surface. Methods of deposition, their pros and cons, construction of the NP12 sputtering device, fundamentals of a deposition of thin conductive films, using reactive magnetron sputtering, preparation of substrates before deposition and thermal processing of substrates after deposition are issues that are described in this thesis. Instruction manual for magnetron sputtering device NP12 was created. For the purpose of this thesis several samples were prepared by magnetron sputtering device NP12 with different process parameters. These experimentally created samples were evaluated with the help of XRD measurement, to determine the influence of annealing in a vacuum oven on a crystal lattice. Substrates were also analysed by scanning electron microscope to evaluate presence of chemical elements inside the thin films.
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Design and realization of wireless interface ODBII-XBee
Zatloukal, Martin ; Frýza, Tomáš (referee) ; Prokopec, Jan (advisor)
This master’s thesis describes possibilities of usage of ZigBee communication protocol and integrated circuit ELM 327 in problem of realization universal diagnostic device, running by OBDII communication standards, which can be used to monitor function of all car´s electronic systems. Thesis also deals with design and realization of necessary electro technical devices and modules followed by compilation of control software and experimental measurements of these devices in real traffic flow. In the first part of project, there are reminded some basic features and parameters of OBDII, followed by description of ways how to use OBDII and adumbrating how to realize universal diagnostic system. The analysis of ZigBee system focused on XBee circuits follows. Construction, ways of data transfer and possibilities of controlling are described. Integrated circuits produced by ELM Electronics Company are introduced and possibilities of usage ELM 327 are described as requested by main task. Second part talks about designing of electronic circuits of this system, assembling schematic diagram and designing sources for production of PCB. Physical realization of these circuits and its first start is also included. Thesis finishes by dealing with practical experiences and measurements using real vehicles. This part talks also about means to improve system by several software solutions to reach more effective functioning of created device.
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Immersion Tin Surface Finish of PCB
Karzel, Vítězslav ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
The aim of this work is to study and more deeply understand everything about surface finishing of the printed circuit boards, that are used for lead-free soldering. Mainly we should focus on immersion tin and prepare some fundamental information for future measurement. Therefore, in the first part of the thesis is our main task is to create a~sufficient theoretical background for printed circuit boards, immersion tin and solderability. Then we are able to use previously created theoretical background to measure selected samples. Thereafter the measured data can be used for more strict evaluation, from which the results of measurement can be obtained.
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Gel polymer electrolytes with high fire safety
Musil, Michal ; Zatloukal, Miroslav (referee) ; Sedlaříková, Marie (advisor)
This work deals with preparation of PMMA based gel polymer electrolytes with high fire safety and high ionic conductivity. In the theoretical part of the work GPEs for Li – ion accumulators, fire safety tests, fire retardants are mentioned. Preparation of GPEs, electrical and other properties are described in the experimental part. Furthermore, new possible methods of gel preparation are discussed.
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Li-ion accumulators charger
Vrba, Marek ; Zatloukal, Miroslav (referee) ; Garcia, Juan Bautista Arroyo (advisor)
The main target of this thesis is to design and realize a prototype of a high capacity battery charger. The charger has been designed as a switching power supply based on a Flyback convertor with two transistors. As switching transistors the integrated circuit IR2110 has been selected. The convertor is controlled by a microcontroller board based on ATMega328 called Arduino Uno; some parts of the Arduino Uno Starter Kit are also used as LCD display, relay and button. In addition, an auxiliary source has been made; this one powers the integration circuit IR2110 and Arduino Uno board. Furthermore, this work introduces us to the processes of charging lithium batteries, types of lithium batteries and methods of charging the lithium iron phosphate (LiFePO4) battery.
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Conducting polymers and their use in supercapacitors
Gottwald, Tomáš ; Zatloukal, Miroslav (referee) ; Dvořák, Petr (advisor)
This work deals with the issues of using conducting polymers for supercapacitor electrodes and optimizing the technological process for their production. The work focuses on optimizing the amount of polymer used in order to achieve the most capacity. The methodology consists of creating an appropriate experimental electrode and subsequent measuring its associated capacity with BioLogic. This approach leads to creating charts which show the dependencies of capacity on the amount of polymer used.
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Surface Finishes of Copper in PCBś Production
Bedlek, Marek ; Zatloukal, Miroslav (referee) ; Starý, Jiří (advisor)
This work examines and compares properties of different types of surface finishes, their qualities and shortcomings and perspective for future use. Emphasis is placed on new product in the field of OSP, Glicoat F2 from SHIKOKU CHEMICALS CORPORATION and immersion tin. It evaluates their influence on solderability and its changes after several reflow cycles and isothermal aging.
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