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Control and measurement unit for plasma generators
Paulovics, Petr ; Boušek, Jaroslav (referee) ; Zemánek, Miroslav (advisor)
The diploma thesis deals with the issue of plasma generators. Specificantlly, the work focuses on the design of HMI devices for plasma generators, including the design of the control part of the generator. The main advantage of controlling the plasma generator using an HMI device is the ability to quickly change important parameters. The HMI device allows convenient switching of the generator output frequency without the need to interfere with the wiring, which leads to higher efficiency when working with the plasma generator. Another advantage of the HMI device is the display of all important information on the LCD display. The work deals with the basic theory of plasma and its use, the division of microcontrollers and the description of their peripherals, the selection of components used and their wiring. The last part of the work is devoted to the software of the plasma generator.
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Usage of High Power Inverters in High Voltage Sources
Zemánek, Miroslav ; Janča, Jan (referee) ; Boušek, Jaroslav (referee) ; Patočka, Miroslav (advisor)
This work is concerned with power inverters for alternate high voltage power sources. The theoretical part describes the topology of inverters that can be used in alternate power sources. A model of voltage transformer is described in details to better understand the parasitic effects that are inevitably present in high voltage power sources and, therefore, have to be taken into consideration at the design of high voltage power sources. The work is oriented to problems of alternate high voltage power sources for ozone generators. This is the reason, why the theoretical and, partially, also the experimental part deal with the properties of ozone and its use. The experimental part solves high voltage inverter with capacitive load that is formed by discharge element of an ozone generator. Designed inverter is able to feed the capacitive load with high voltage at very short periods of time from several microseconds up to tens of nanoseconds. In comparison with the length of voltage pulses in common ozone generators, this pulses are more than 100-time shorter. This has a positive effect to silent discharge characteristics.
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Preparation for the production hall in Trutnov
Zemánek, Miroslav ; Kolečkářová, Barbara (referee) ; Kantová, Radka (advisor)
This Diploma thesis deals with preparation for the production hall in Trutnov. The thesis handles technological prescriptions of micropiles, piles, casing panels BRUCHA Paneel. Thesis provides an insight into the inspection and testing plan of micropiles, the situation concerning broader transportation relations with traffic routes, itemized budget with land area, timetable, draft of major machines and mechanisms. Furthermore, the thesis contains drawing formwork of external extension, layout plan, details of the wall casing.
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DC to DC inverter for backup power supplies
Eliáš, Marek ; Zemánek, Miroslav (referee) ; Boušek, Jaroslav (advisor)
This thesis deals with the design of a DC/DC converter designed for charging supercapacitors from the 36 V voltage source and consequent back transformation of supercapacitors voltage to the required output voltage. In the thesis the designs of decreasing and increasing DC/DC converters including schematics and calculations of individual components are presented and described. The calculations necessary for the supercapacitors to meet the 10Wh energy condition and the voltage balancer on the capacitors are given below. Completely designed equipment will be assembled and tested on supercapacitors with lower energy.
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Industrial application of TS displays
Chytil, Lukáš ; Zemánek, Miroslav (referee) ; Boušek, Jaroslav (advisor)
This master thesis describes the design of control unit, which has the task to operate industrial facilities for disinfection of swimming pools or living rooms. The designed control unit is trying to regulate power and flow rate, which is controlled by electronic valve with a flowmetr. The whole design is aimed at minimizing operating costs (mainly consumed liquid oxygen). Interaction with the operator is ensured by the HMI display. There is also an effort to highlight the importance of HMI applications in the industry.
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The replacement of the starter battery
Gerbel, Patrik ; Zemánek, Miroslav (referee) ; Boušek, Jaroslav (advisor)
This master thesis deals with designing of a recuperative converter system and auxiliary circuits that extend the life of the automotive battery by using supercapacitor as a source of power when starting a car using the start-stop function. The microcontroller is used to measure important circuit values and control the output current of the converter.
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Power supply for medium pressure UV lamps
Hurdálek, Tomáš ; Zemánek, Miroslav (referee) ; Boušek, Jaroslav (advisor)
UV radiation has a very wide range of uses in industrial production and disinfection. At present, medium-pressure mercury lamps are used for the reliable generation of UV radiation. The aim of this work is to get acquainted with the principle of individual types of lamps and methods of controlling their power and to design an electronic ballast with continuous power control and, if necessary, verify the correct function of its most important parts.
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High-Voltage Structures for Galvanic Isolation in Integrated Circuits
Ptáček, Karel ; Husák, Miroslav (referee) ; Zemánek, Miroslav (referee) ; Boušek, Jaroslav (advisor)
Tato dizertační práce představuje novou techniku laterární rezonanční vazby, která je využita v návrhu galvanicky izolovaného posouvače úrovně, který je následně implementován v 800 V půlmůstkovém kontroléru pro průmyslové aplikace. Ve srovnání s tradičními galvanickými izolátory jsou výrobní náklady tohoto řešení nižší. Pro aplikace vyžadující vyšší úroveň galvanické izolace je popsán následný vývoj galvanicky izolovaného posouvače úrovně, který využívá pouze jeden galvanicky oddělený posouvač úrovní pro komunikaci v obou směrech, což výrazně snižuje plochu struktury izolátoru. Jako součást následného návrhu je představen galvanický izolátor který je schopen přenášet analogovou hodnotu napětí. Analogový izolátor byl testován v reálné aplikaci síťového spínaného zdroje jako náhrada standardního optočlenu. Tato konstrukce umožňuje integraci primárních a sekundárních obvodů v jednom pouzdře, což umožní snížit složitost a cenu spínaného zdroje.
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