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Low-range high-speed optical transceiver
Pučálka, Jan ; Tošovský, Petr (referee) ; Kubíček, Michal (advisor)
The diploma thesis deals with description and design of a low-cost free-space optical (FSO) link. First, general FSO theory is discussed including their common parameters, properties and topologies. Further, optical signal sources and detectors are proposed. Finally, the selected implementation is described including its design and realization. The proposed FSO consists of two identical segments (modules) to form a full-duplex link. The FSO utilizes LED as a light source, maximum speed data rate is 100 Mb/s with 100Base-TX interface.
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LED Driver evaluation kit for Automotive Front-Lighting
Večeřa, Jindřich ; Kubíček, Michal (referee) ; Dřínovský, Jiří (advisor)
This thesis deals with design of evaluation platform for integrated circuit NCV78934, which is designed to control LED headlights in automotive industry. The theory concerning the current regulation of buck converter, schematic design, PCB design and software design are also included in the thesis. Finally the measured data and testing procedures of the designed evaluation platform are discussed.
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Low frequency active artificial load
Lízner, Václav ; Papica, Petr (referee) ; Kubíček, Michal (advisor)
This diploma thesis is focused on synthetic loads, especially electronically controlled loads. The thesis analyse principles of mechanically and electronically controlled loads and theirs operation modes. The paper also carried out a search of AC loads available on the market. The parameters of the AC load were based on the requirements provided by client. The functionality of the designed load is verified by simulation. The thesis continues with realization of the designed schematics and bringing the load to function. At the last section of the thesis are detail parameters of the designed load verified by measurement.
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Laboratory source based on switching technology
Kočí, Martin ; Kubíček, Michal (referee) ; Brančík, Lubomír (advisor)
The aim of this thesis is a description of the dierent topologies used in switching power supply and subsequent use of acquired knowledge to select an appropriate topology, power supply, using the selected topology and the subsequent construction of laboratory source as a whole. Ideological content of the proposal are part of the power source based on the topology being used in switching power supplies, also on the controller working as buck converter controlled by PWM and the control section, whose mainfeature is the 8-bit microprocessor. The design is shown working with the designprogram PXLS Expert and the program for PCB Design EAGLE. Simulation shown in this thesis are implemented in the program OrCAD PSPice. Objective is to ervive all the functional blocks as a whole and the subsequent measurement of basic parameters, which are pro- cessed graphically. All parameters are measured at the end compared with the expected parameters and the simulations generated in the ideological content. Finally, the work is to evaluate all of the results obtained and compared with the primary objective of this work.
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Programming of PLD devices using microprocessors
Petrilak, Michal ; Fedra, Zbyněk (referee) ; Kubíček, Michal (advisor)
This work is focused on configuring of Xiling's FPGA devices by embedded microcontroller. Several methods of configuration are described and the most suitable method is chosen. The attention is also paid to choose the microcontroller and auxiliary hardware components. The last part of the work describes the creation of the software for the microcontroller and for the PC. The suggested device should serve as an inexpensive substitute for commercial programmers from Xilinx.
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Generator for Ripple Rejection Measurement of Voltage Regulators
Nekovář, Jiří ; Kubíček, Michal (referee) ; Šebesta, Jiří (advisor)
The aim of this bachelor’s thesis is the design of complete circuitry, mechanical solutions and build of generator, which will be use with osciloscope and millivoltmeter with pass-bands for measure the suppression of ripple voltage stabilizers. Circuit is power voltage generator with low output impedance. The individual chapters describe the generator including the integration of measuring instruments (DC voltage, effective AC voltage and frequency AC voltage). Functionality of the assembled generator was tested and subsequently the parameters was measured. Properties of frequency counter were improved replacing original circuit parts (gate circuit, reset and extension of range).
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Omnidirectional robot – construction design
Kubíček, Michal ; Abbadi, Ahmad (referee) ; Matoušek, Radomil (advisor)
This bachelor thesis deals with the 3D design chassis holonomic omnidirectional robot. The aim of the work is to design two omnidirectional mobile robots. The first one is the three-wheel omnidirectional robot with spring-loaded platform. The second one is the special balancing robot, where the motion wheel is the ball and the robot ride over them. The platform was designed for using with Maxon MCD EPOS motors. The simplest structure of mobile robot was chosen due to simplification of manufacture process. The robot platform design was realized by means of SolidWorks software.
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Control module of stepper motor for positional system with Ethernet
Raszka, Dan ; Kubíček, Michal (referee) ; Kolka, Zdeněk (advisor)
This paper describes the design of Stepper motor controller module controlled over Ethernet for positioning system. Part of this work describes analysis of the assignment, design of modular circuit, choosing right components and prototype design of communication and power module. In another part each module is described with emphasis to modularity. It deals with description of manufactured prototypes and their tested paramethers.
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