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Current Feedback Circuits for Analog Signal Processing
Stehlík, Jiří ; Bartoň,, Zdeněk (referee) ; Dostál, Tomáš (referee) ; Musil, Vladislav (advisor)
This dissertation thesis deals with design of new functional blocks usable in area of analogue signal processing, focusing on sensor signal processing. Versatility of these circuits will find applications in programmable analogue array structures that will be possible to control and configure via a digital signal. Hereby build-up array would be fully a reconfigurable digital control system for sensor signal processing and usable for a wide range of different sensors. It offers possibility to build-up a control code for each specific sensor system, with which it would be possible to achieve optimal results of the entire system and consequently place the system on a chip. The presented programmable array is designed from configurable analogue blocks. The current feedback circuits, which in a suitable configuration can operate in voltage or current mode, are used here. This allows to achieve very good results in the systems with very low power supply, which is closely associated with mobility and autonomous behavioral (that are very important and observed parameters today) of the entire sensor-based framework. The work deals in detail with particular blocks, which are described theoretically and evaluated for using in the programmable analogue array. Design of the structure of programmable analogue array as well the use of these circuits in the part of whole system (that will be realized on a chip) are presented at the end of this thesis.
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Circuits with Modern Active Elements
Axman, Vladimír ; Dostál, Tomáš (advisor)
PhD. thesis is deals about sekond order ARC filters for cascade synthezis of Active filters. Here are presented new configurations of second order filters with current conveyors usable for higher frequencies and new second order filters with current conveyors usable for electrical tunable filters. In PhD. Thesis are presented schematics and equations for new sekond order filters. There are presented also practical realizations of these filters and basic measure results.
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Construction RNAV instrument departures for runway 03C at the Kunovice airport
Dostál, Tomáš ; Vosecký, Slavomír (referee) ; Veselý, Petr (advisor)
This master´s thesis deals with RNAV-1 departure routes for runway 03C at the Kunovice airport. Suggested routes are linked to the new RNAV-1 routes in TMA Brno. RNAV SID maps and construction of one of the departure track are also done and described in this master´s thesis. Beyond design of RNAV-1 routes are also analyzed influences and factors in the master´s thesis that affect the construction of these routes. Construction of RNAV SID routes are based on the knowledge and shortcomings conventional routes that are resulted from the analysis of the current departure routes at the Kunovice airport. In the second part of the thesis is submitted 3 variants of departure routes for Kunovice airport.
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Functional generator
Kopecký, Petr ; Dostál, Tomáš (referee) ; Slezák, Josef (advisor)
Functional generators are equipments that provide electrical signals of variable parameters. They are classified by various criterions – by the type of produced signal or according to the type of self realization of generator. This bachelor thesis deals with the possibilities of realization generators with harmonic, triangular and rectangular signals. It focus on the project of generator in compliance with gained experience and knowledge. The practical part of the thesis is focused on realization of the generator. The function of the generator is checked during the measurements.
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Realization of the high-end audio amplifier LEACH
Korvas, Miroslav ; Dostál, Tomáš (referee) ; Slezák, Josef (advisor)
The theme of my bachelor’s thesis is a realization of the high-end audio amplifier and it’s modification for the lowest distortion. Because it was not specified, I have decided to for realization of amplifier 100 W. I use modification of LEACH amp circuit for using ThermalTrak [5] transistors. My bachelor’s thesis describes problems of distortion and particular description of separate blocks of LEACH amplifier and their function. The practical part of the bachelor’s thesis contains heat sink design, measurements and simulations of the amplifier and their confrontation to theory. Technical documentation for realization of the ThermalTrak amplifier contains printed circuit board.
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Active frequency filter using current mode
Paščinský, Jiří ; Dostál, Tomáš (referee) ; Slezák, Josef (advisor)
The aim of this work is design of frequency filter working in current mode. The introduction of the work deals with features and applications of frequency filters. Special attention is paid to the transfer function of the filter. In third chapter different operational modes of electrical circuits and their advantages and disadvantages are discussed. Attention is paid to active blocks suitable for circuits working in current mode. There is description of components AD844 and EL2082 which represent current conveyors of the second generation and are used in the designed filter. The last two chapters deal with design of component values of the frequency filter. The designed circuit was simulated in PSpice and the results were compared with measurments. Also sensitivity and tolerance analysis of the filter were performed.
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Direct realization of the transfer function using modern fuctional blocks
Vyskočil, Jiří ; Petržela, Jiří (referee) ; Dostál, Tomáš (advisor)
The aim of my bachelor’s thesis is a direct realization of the transfer function using modern functional blocks. It is a circuit design of multifunction frequency-selection filters. A merit of the direct realization of the transfer function is for example an easy modification of the circuit design using the signal flow graph. These circuit designs can work in current and voltage modes. My task is to design a few such designs using modern function blocks. Then I verify their function and basic characteristics, I make tolerance and sensitivity analyses and lastly I scrutinize effects of parasitic phenomena and real building components.
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Project Financing by EU Funds
Dostál, Tomáš ; MBA, Martin Macháček, (referee) ; Koleňák, Jiří (advisor)
This Diploma thesis is focused on the possibilities of financing a specific project in the company from EU Funds. Theoretical part of this thesis describes an individual funds and policies of European Union. This part also defines the basic informations from Project management. The aim of the practical part is prepare a feasibility study of the project. This project will be co-financed from EU Funds. After that the whole process will be assessed. In the end of the thesis is processed the whole procedure of submission the request from the Business and Innovation Programme through the CzechInvest agency.
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Economics Efficiency of Thermodynamic Heating
Balga, František ; Dostál, Tomáš (referee) ; Luňáček, Jiří (advisor)
This master thesis intents on analysing of economic efficiency of the investment project. Theoretical part of the thesis describes particular periods of the investment decision, what compromise a definition of more types of investments, investment projects and their classification. At the practical part of this thesis is applied the theoretical knowledge to evaluation of the planned investment, then is analysed the most profitable of the evaluated alternates and the last step is to propound next measure for the succesful realization of the project.
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