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Fundamental properties of semicomductor materilas
Kahánek, Tomáš ; Jirák, Josef (referee) ; Špinka, Jiří (advisor)
This work deals with fundamental properties of semiconductors materials and methods of their measuring. This work is focused on non-contact methods using light to generate electric charge in semiconductor. Tests were focused on measuring characteristics of PN transition light diods and semiconductor specimen with big resistivity, there was founded absorption edge of silicon.
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Design of floor luminaire.
Bečicová, Dana ; Křenek, Ladislav (referee) ; Rubínová, Dana (advisor)
Presented thesis deals with the design of floor luminaire. It contains the selection of illuminating light and materials. I sought to bring something unique, which causes pleasure to users. The result is the elegant floor lam. It consists of pedestal and three tubing with illuminating lights. The LED diode was used as the illuminating light. In this work you can find a progression and contemporary posture of interior light. It describes also progression and description of design light.
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Modification of measurement workplace for solar cells
Roček, Radovan ; Bača, Petr (referee) ; Vaněk, Jiří (advisor)
The problems of solar cells are described in general in theoretic part of the master’s thesis. In particular there is described structure of solar cells, procedure of production of solar cells, kinds of defects that can occur in solar cells and diagnostic methods of detection of this defects. The solar simulator, electroluminescence method, detection of defects during microplasma shining, LBIV and LBIC method belongs to category of diagnostic methods. The main focusing is on diagnostic method of LBIC (Light Beam Inducted Current). The workplace which exploits this method is used in laboratory in Department of Electrotechnology on University of Technology Brno. This method is very exact and it reveals most of defects in solar cell but the problem is the slow speed of testing. In practical part of the master’s thesis the main solved problem is the proposition and realization of modified workplace of LBIC that would work on more modern level, it means using performer PC for service program and Agilent 34410A the modern measuring device. The speed up of the testing time is the goal of modernization in existing accuracy of finding. The modify workplace is realized and compared with the existing workplace subsequently.
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Led matrix 8x64
Marek, Michal ; Macháň, Ladislav (referee) ; Šteffan, Pavel (advisor)
The bachelor thesis describes what is a LED matrix and how to control them. The function of the control circuits for the LED matrixes, the function of the current controller and microcontroller programming method are delineates in the project. These include microcontroller programming via universal serial bus, changing source code parameters via local ethernet network with the ethernet connect module, using standard peripheral buses for serial transmissions and the ways of controlling LEDs using relevant libraries. Objective is to introduce a solution for LED controlling using the Windows software application and propose complex assembly includes all the necessary blocks, which provides simple operating for new users.
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Control Unit with (Espressif) ESP32 Module
Smička, Daniel ; Krejčí, Jan (referee) ; Škorpil, Vladislav (advisor)
This bachelor thesis describes concept, design and making of control unit with module Espressif ESP32. At first we apply to proposition of theoretical communication blocking scheme and blocking scheme of design. Afterwards we apply to designing of the scheme and choosing appropriate parts and making design of printed circuit board. In the end we are going to code function of the module and we will make end-user device.
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Design of linear clock with LED digital scale
Javorský, Dominik ; Krčma, Martin (referee) ; Svoboda, Petr (advisor)
This bachelor thesis deals with the design and production of linear clocks with LED digital scale by 3D printing. The beginning of the work gives an overview of existing structural design and also a brief overview of today's electronic components used in the creation of linear clocks. In the following part, the work deals with the design and production of linear clocks. The output of the work is a functional model that satisfy the requirements of scale with a range of 12 hours and a resolution of 5 minutes. The work also contains drawing documentation of the assembly, selected components and software used to control linear clock.
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Industrial Tester for Photometric Values of LED diodes Used in Automotive Signal Lighting
Gaži, Dominik ; Froehling, Kenneth (referee) ; Baumgartnerová, Alena (advisor)
V posledních letech zažili světlomety v autech obrovský technický rozvoj, který se podílel na jejich současné složitosti. Aby řidiči i zákazníci byli spokojeni, je využíváno různých technologií pro neustálé dosahování účinnějších a bezpečnějších světelných zdrojů. Společnosti usilují o minimalizaci ztrát ve výrobě ve snaze šetřit životní prostředí a konat ekonomicky. Tato práce se zabývá výzkumem osvětlovací techniky a návrhem jednoduchého a efektivního zařízení pro testovaní chyb LED plošných obvodů ve světlometech, to vše za účelem minimalizace strat. Dalším cílem je výzkum možností konstrukce takového zařízení z technologického hlediska.
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Control Unit with (Espressif) ESP32 Module
Smička, Daniel ; Krejčí, Jan (referee) ; Škorpil, Vladislav (advisor)
This bachelor thesis describes concept, design and making of control unit with module Espressif ESP32. At first we apply to proposition of theoretical communication blocking scheme and blocking scheme of design. Afterwards we apply to designing of the scheme and choosing appropriate parts and making design of printed circuit board. In the end we are going to code function of the module and we will make end-user device.
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Design of microscope LED illumination system
Gricová, Monika ; Dostál, Zbyněk (referee) ; Antoš, Martin (advisor)
The objective of this bachelor thesis was to design illumination assemblage in confocal microscope Confocal 2002. First part of this paper describes types and components of confocal microscopes. For correct function of the microscope, high-power illumination by a white light emmiter is required. Based on the analysis of the background research, suitable LED diode was selected. In experimental part of this work, eight optical systems are proposed, that has been assembled and evaluated. Based on the evaluation of obtained paramteres, the optimal assemblage was selected and designed for production.
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Led matrix 8x64
Marek, Michal ; Macháň, Ladislav (referee) ; Šteffan, Pavel (advisor)
The bachelor thesis describes what is a LED matrix and how to control them. The function of the control circuits for the LED matrixes, the function of the current controller and microcontroller programming method are delineates in the project. These include microcontroller programming via universal serial bus, changing source code parameters via local ethernet network with the ethernet connect module, using standard peripheral buses for serial transmissions and the ways of controlling LEDs using relevant libraries. Objective is to introduce a solution for LED controlling using the Windows software application and propose complex assembly includes all the necessary blocks, which provides simple operating for new users.
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