|
| |
|
|
Vibrational energy harvesting demonstrator
Uhliar, Marek ; Götthans, Tomáš (referee) ; Mrnka, Michal (advisor)
The aim of the thesis is to solve the problem of energy collection from vibrations, transformation into electric energy, which can be suitably used by the end device. In the next section, the reader is acquainted with possible circuits that can be used to process the collected electrical energy. The last part of the thesis deals with the design of the auxiliary circuits for energy collection and with the design of the demonstration device, which will use the converted energy to measure the air temperature and humidity. The measured values will then be displayed on the LCD.
|
|
|
Design and realization of switching class audio power amplifier
Levocký, Kristián ; Götthans, Tomáš (referee) ; Brančík, Lubomír (advisor)
This bachelor thesis describes design of audio amplifier of class D with power 2x100W. Power part is designed with integrated circuit TAS5630B made by Texas Instruments and correction preampifier unit is regulated by four potentiometers , controled by integrated circuit TDA1524A. Switching supply is regulated by circuit TOP261EN. Whole device is installed in device box with graphic display and control components.
|
|
|
Laboratory power supply
Říha, Pavel ; Petržela, Jiří (referee) ; Götthans, Tomáš (advisor)
This bachelor's thesis deals with design, simulation and realization of a prototype of regulated laboratory power supply with adjustable current protection by potentiometers with measuring and displaying the output voltage and current using a microprocessor and LCD display with adjustable voltage range of 0 - 30V and current 0-3A. The thesis also includes design of power transistor cooling and the results of testing functional prototype.
|
|
|
Backup power supply with solar panel charging
Křepela, Pavel ; Götthans, Tomáš (referee) ; Kubíček, Michal (advisor)
This project aims to create a backup power source with solar charging for small mobile devices (through USB connector). The charger should store power in a battery that is charged either from external power source or the solar panel. In the introduction, the work deals with the theory of solar cells and batteries. Furthermore, it described the selection of suitable components and design diagram.
|
|
|
Camera slider control
Rajnoch, David ; Götthans, Tomáš (referee) ; Mego, Roman (advisor)
This bachelor thesis describes design and implementation of stepper motor digital controller that manages camera slide movement. The main elements are microcontroller ATmega16 and stepper motor driver TOSHIBA TB6560. Controller allows a time-lapse mode and continuous linear movement including smooth start and stop. Human interaction is based on joystick input and text display connected via HD44780 interface. The theoretical part describes stepper motors and their control modes. The practical part deals with design of electronic circuit and test of functionality.
|
|
|
Power consumption analyzer
Spielmann, Ondřej ; Galetka, Josef (referee) ; Götthans, Tomáš (advisor)
The subject of master’s thesis is introduction with the principles of measuring voltage, current and electrical power in DC and AC systems. Is designed measurement system for normal household. Measurement system includes pricing and client billing. User interface Ethernet-based is implemented.
|
|
|
Algorithms for computation of the dimensions of state space attractors
Götthans, Tomáš ; Slanina, Martin (referee) ; Petržela, Jiří (advisor)
The geometry of chaotic attractors can be complex and difficult to describe without some mathematical tool. The topic of this contribution is the realization of program for computing the dimensions of state space attractors. We can also find out if the system is highly sensitive to initial conditions. First we need to numerically integrate system of equations, create a data set and finally we can estimate the capacity or Kaplan-Yorke dimension. The main objective of derived program is to analyze and determine chaotic behavior providing a chance to discuss the accuracy of computation engine and theoretical value.
|
|
|
Sensor network over power line systems
Plachý, Martin ; Galetka, Josef (referee) ; Götthans, Tomáš (advisor)
This semestral thesis contains information about a construction of a senzor network over power line systems. Those are divided with the reference to bandwidth. After the general description of the network there is the whole realisation of a drive unit and a sensor unit described and the design of data and power circuits is solved separately. The description of both units programs written in the ANSI C language is presented in the next chapter. The description of the network control by PC and a quantitative evaluation of the network reliability are also included.
|
|
|
Industrial low complexity Ethernet system
Šustek, Vladimír ; Götthans, Jakub (referee) ; Götthans, Tomáš (advisor)
The diploma thesis is focused on the building embedded demonstration application of the proprietary Low Complexity Ethernet module for industrial usage further called the LEN/LES 2. At the first, main used technologies such as MCU, or the lightweight IP stack is discussed, Consequently, there is detailed view on system hardware architecture proposed by hardware and software requirements. Then though part describes blocks of embedded system are in term of specific parts and hardware requirements to create universal board. Following chapters expresses first startup and known hardware bugs, LWIP implementation and MODBUS system implementation. The core of the system is the new released microcontroller an ADuCM4050 and the Low Complexity Ethernet MAC-PHY prototype block and much more dependent convenient peripherals of the MCU based application.
|
guest ::
