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Investigation of Ionizing Radiation Infuence to the Communication Systems of Satellites
Golubev, Martin ; Kubíček, Michal (referee) ; Katovský, Karel (advisor)
This master thesis discuss about ionizing radiation, interaction with matter and effects on her. In the work is discussed differend types of interactions of directly ionizing radiation and indirectly ionizing radiation. Below is an overview of methods of shielding from all of types of ionizing radiation. Second part of this thesis discuss about single event effects in semiconductors which are cause by ionizing radiation. At the end is described design of measuring instrument included FPGA chips. This design is discused both from point of wiew hardware and software too.
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Small solar power plant
Šimůnek, Patrik ; Kolouch, Jaromír (referee) ; Kubíček, Michal (advisor)
This bachelor thesis deals with the design of a small solar power-station utilizing a lead-acid battery. Its purpose is to provide power for small household applicances. This project consists of a theoretical design of the system, detailed design of MPPT regulator and a design of schematic circuitry and PCB. Finally, actual measured parameters of the whole systém are presented.
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Driver of high brightness white LED
Tomášek, Petr ; Kubíček, Michal (referee) ; Frýza, Tomáš (advisor)
This document is analysing LED driving with switch power supply from classic electric network 230V/50Hz. First chapter analysis LED diodes function and its fundamental parameters . In the second chapter, there is essential information about electric power supply. Third chapter is analysing switch power supply, including simple techniques, which are not used nowadays. In the fourth chapter, there is analysis of LED driver and circuit design. Fifth chapter is analysing construction of driver and its safety. There i salso information about measuring of parameters of constructed driver.
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Hybrid module for industrial localization
Sedláček, Petr ; Fuchs, Michal (referee) ; Kubíček, Michal (advisor)
Tato diplomová práce si klade za cíl návrh hybridního lokalizačního zařízení, které je schopno lokalizace uvnitř i vně budov. Lokalizace uvnitř budov je dosažena pomocí technologie Ultra Wideband a venkovní lokalizace je provedena pomocí kombinace technologie RTK GNSS a PPP pomocí open - source softwaru zvaného RTKLIB. První část textu se zaměřuje na vysvětlení používaných technologií a výběr nejpřesnější technologie pro venkovní lokalizaci. Druhá část se zaměřuje ma vývoj potřebného hardware a software finálního zařízení a na integraci systému pro venkovní lokalizaci do systému pro lokalizaci vnitřní. Výstupem práce je plně funkční zařízení, které je schopné plynulé lokalizace uvnitř i vně budov. Funčnost celého zařízení je dokázána na finálních testech uskutečněných ve vnitřních i venkovních prostorách. Na závěr také práce zmiňuje možná vylepšení celého zařízení, která mohou být v budoucnu provedena.
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Power supply for acquisition and communication subsystem of a current transformer
Beran, Tomáš ; Král, Jan (referee) ; Kubíček, Michal (advisor)
This bachelor thesis is focused on designing a power supply for measuring part and communication part of a device, which is supposed to analyze current waveforms on high voltage lines. The power supply consists of a current transformer, control electronics, and accumulation elements. The thesis analyzes the current waveforms on high voltage lines to get an overview of input data so that the right current transformer can be chosen. A working principle of these transformers is described, as well as the options for accumulation elements. Power supply requirements for the power supply are determined as well. The next part of the thesis summarises this theoretical knowledge and applies it to the schematic design. This is followed by a description of the schematic with an included description of function blocks. Additional adjustments that would improve the power supply's properties might be mentioned. This will be followed by designing a PCB layout. The final part includes the manufacturing process and determination of parameters like power, efficiency, etc. In the manufacturing process, the PCB will be printed, soldered, and evaluated on an electrical test. The electrical test inspects the functionality of the designed power supply by simulating real-life scenarios of high voltage lines. At last, an impact of the power supply on the measuring system will be analyzed.
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Uninterruptible AC Power Supply
Jansa, Josef ; Kubíček, Michal (referee) ; Šebesta, Jiří (advisor)
This work deals with the standby power sources for heating circulating pumps for solid fuel. This work also deals with specific design UPS for circulating pump house 230 VAC maximum power of 50W, including automatic battery charger 12V and monitoring units.
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Laboratory Kit for Programmable Logic Demonstration
Svoboda, Stanislav ; Kubíček, Michal (referee) ; Kolouch, Jaromír (advisor)
This bachelor’s project deals with solutions of laboratory kit for teaching of work with CPLD curcuits which are made by company ALTERA. It is also including design of PCB - printed cirucit board and way of their realization. For construction is used circuit CPLD EPM 7064SLC44 made by ALTERA. Whole laboratory kit for Programable Logic Demonstration is designed as individual unit, which is capable to work as individual function. The kit can be amplified by connection of optional peripherals.
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Design of stabilized dual power supply
Svoboda, Tomáš ; Kubíček, Michal (referee) ; Brančík, Lubomír (advisor)
This bachelor’s thesis is focused on design and construction of stabilized dual power supply with adjustable output voltage in range 0 – 30 V and adjustable current limit in range 0 – 3 A. Power supply consists of line transformer, switching regulator and subsequent application of linear regulator for better output properties. Measurement of output voltage and current is realized by microcontroller ATmega644, which has optical separated inputs. In this thesis the device is designed and simulated. The design is verified by prototype device and then full construction is done. Construction is tested by measurements, which confirm a proper design.
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System for precise dynamic measurement of bridge sensors
Čech, Jonáš ; Kolka, Zdeněk (referee) ; Kubíček, Michal (advisor)
This master’s thesis deals with design of measurement system for dynamic measurement of bridge sensors. After a short theoretical part, the own concept is introduced. System can provide sampling rate up to 250 kSa/s with 24-bit resolution. The maximum number of samples is about one and a half milion. At first, the design of analog part was made, in this phase of design the digital part is based on evaluation board with ARM Cortex-M7 and external memory. After final choice of appropriate ICs, the analog and digital part will be integrated into one PCB.
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