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Backup power-pack for cell phones
Kovařík, Jindřich ; Povalač, Aleš (referee) ; Kubíček, Michal (advisor)
This Bachelor`s thesis is focused on the issue of high energy intensity modern mobile phones. The aim is to create a backup power supply with its own batteries, which will be able to recharge your mobile phone in the absence network resources. Implementation of backup resources must be sufficientlymechanically resistant to be usable in practice.
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Touch panel controlled PLC systems for HV device control
Vlk, Jáchym ; Vyskočil, Pavel (referee) ; Kubíček, Michal (advisor)
The master thesis describes communication of PLC and touchscreen with purpose of high voltage control. The general information and framework are included. The thesis describes part of IVEP corporation development. Due to the beginning of a long-term development it is premature to come into conclusions within this master thesis. The first chapter deals with PLC and other components. The second chapter consists of matters about high voltage devices. The following chapter describes the programme part. The fourth and concluding chapter deals with the realization of the communication itself. A brief evaluation with prospects for the future is included in the conclusion.
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Detection Algorithms of Radar Targets
Štukovská, Petra ; Kovář, Pavel (referee) ; Veselý,, Jiří (referee) ; Kubíček, Michal (advisor)
This thesis focuses on detection algorithms of radar targets, namely on group of techniques for removing of disturbing reflections from static objects - clutter and for suppression of distortion products caused by the phase noise of the transmitter and receiver. Methods for distortion suppression in received signal are designed for implementation in the developed active multistatic radar, which operates in the code division multiplex of several transmitters on single frequency. The aim of the doctoral thesis is to design, implement in tool for technical computing MATLAB and analyze the effectiveness and computational complexity of these techniques on simulated and real data.
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Additional LCD Display for Laboratory Kit with a Programmable Device
Pajskr, Jaroslav ; Kubíček, Michal (referee) ; Kolouch, Jaromír (advisor)
The main part of the digital application is its user interface. Users can check the status of the programme or change its state. There are many ways to obtain a suitable interface. During the design stage the simplest interface is chosen that provides the necessary functions. In most cases the interface contains a display. This diploma thesis deals with the design of an extension board to plug in a display to a programmable device, a control algorithm for the display and the design of a simple display interface. There are two ways to design software. The first of them is achieved by the processor PicoBlaze, which contains all the required functions. The second solution is by the state machine written in VHDL language. Both solutions can be used in the same way, but the latter solution is quicker and requires less hardware resources.
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Load carring structure of a riding hall
Kubíček, Michal ; Straka, Bohumil (referee) ; Sýkora, Karel (advisor)
Master's thesis describes the design and check of the construction of the riding hall. Here are compared two versions the steel structure riding hall. For select version is here technical report, design calculation, statement of material and design documentation. Next is prepared specialization in the field of building construction.
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Acquisition unit for analog filters measurements
Vríčan, Peter ; Kubíček, Michal (referee) ; Kincl, Zdeněk (advisor)
This thesis deals with frequency filters and their realization. The main aim was to design conception and involvement of acquisition unit for analog filters automatic measurements. Acquisition unit consists of its bulb with seven analog filters. Contained filters are 3 active analog filters ARC of second series ( LP, HP, BP ), 3 passive analog filters RC of second series ( HP, BP, BS ) and the filter with lossless grounded gyrator. Whole measurement, frequency setting of generator, measured filter selection and data sending is automatically operated by microprocessor controlled by PC. Communication between microprocessor and PC is realized via USB interface. Unit realization, testing and creating of control software was the next goal of thesis. Its achieved parameters from measurement of filter frequency responses are compared with responses of the simulations of the same filters using PSpice. The thesis is focused also on causes of differences between real and theoretical filter responses, which includes mainly tolerances and parasitic properties of applied components.
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Thermoluminescence measurement system
Matějka, Tomáš ; Král, Jan (referee) ; Kubíček, Michal (advisor)
This thesis deals with revision and design of electronic for measuring system PSI TL 500 which is designed for measurement of thermoluminescence phenomena in photosystem II. Thesis describes principles and properties of the measuring system in its current form and changes for the new version are discussed. Digital control part based on Xilinx Zynq platform is designed. Revision of analog measuring part of system is made and partial changes are implemented.
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Digitally controlled multifunction filter
Hubka, Patrik ; Kubíček, Michal (referee) ; Ševčík, Břetislav (advisor)
he bachelor thesis deals with the modern design of analog filter where the digital potentiometers to control circuit parameters are used. The main purpose of this thesis is to create a fully digitally controlled filter at frequencies above 1 MHz based on LT1568 integrated circuit. The main circuit parameters such as cut-off frequency, gain, filter order and type of approximation function are digitally controlled. Analysis of parasitic effects of digital potentiometers is included. The integrated circuit functionallity is demonstrated by LTspice circuit simulator. Finally, the experimental measurement results for various circuit parameters setting are included.
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Laboratory Function Generator
Trnkus, Andrej ; Kubíček, Michal (referee) ; Šebesta, Jiří (advisor)
This thesis deals with the design of function generators based on direct digital synthesis. It examines software and hardware realisation of a generator of sinus, triangle and rectangle shaped signal, frequency sweep, pulse-width modulation and data transfer after the SPI data bus. It also focuses on the user interface display on an LCD display, control by a rotational encoder and the buttons of the microcontroller periphery of an AVR class.
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USBTMC bench power supply
Sehnálek, Lubomír ; Vyskočil, Pavel (referee) ; Kubíček, Michal (advisor)
This thesis was selected due to establishing of universal platform for USBTMC remote instrumentation and constructing a laboratory DC power supply for hobby use. This thesis is focused on design and realization of regulated linear DC power supply. At first thesis mentions kinds of DC power supplies and kinds of interfaces used for test and measurement instruments. Thesis continues by describing of blocks of a developed linear DC power supply with an USB interface following the USBTMC specification for remote control. Thesis ends by realization of the regulated linear DC power supply with USBTMC interface. It was achieved acceptable results. Communication between PC and Control module works well as same as communication between Control module and Power supply module. Maximum output ranges of voltage and current are 40V and 3A. Big interference on auxiliary supply rail decreases accuracy.
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