|
|
The Evolution of the Global Microchip Market
Srba, Lukáš Martin ; Bolotov, Ilya (advisor) ; Čajka, Radek (referee)
This thesis aims to explain the evolution and transformation of the microchip industry. It focuses on the changes and prediction of the future state including its causes and consequences. The analysis starts on the general description of the market and continues through its subjects ending on relationships between them. This serves as a source of information to the prediction in the final part of the thesis. In the beginning the products, which are taken into consideration in this work (namely CPUs, GPUs and APUs), are described. Following this, there is an analysis of the competition environment that defines a structure of the market upon which further work is based. (Three levels; the manufacturer of photolithographic machines, makers of the chips and their designers and OEM and aftermarket subjects.) The penultimate part defines the barriers to entry to this market and three categories are drawn up: economic, technical and geoeconomic, which are applied to every level of the market. Thus all prerequisites to a successful prediction are satisfied. In the last part of the thesis the prognosis is made and defined, along with its assumptions and limitations. In the concluding part of this work the consequences and results are summarized.
|
|
|
Measurement of meteorological variables
Škorpík, Daniel ; Harabiš, Vratislav (referee) ; Chmelař, Milan (advisor)
This bachelor thesis discusses about the basic meteorological variables, especially temperature and airflow. These magnitudes are measured using an anemometer which uses resistive sensors, namely, two thermistors of NTC type that described technology, operations, methods of scanning, sensor placement and implementation of such a device. After that was designed block diagram and circuit diagram. The meter is realized, than we describe the individual components and then is calibrated and tested. In conclusion, it is evaluated for use in medicine.
|
|
|
Basic measurement of dynamic properties of bipolar transistors
Repčík, Juraj ; Šteffan, Pavel (referee) ; Dřínovský, Jiří (advisor)
The aim of this bachelor thesis is to analyze theoretical basis of measurement bipolar transistors. First, this project focuses on the static parameters of a bipolar transistor, setting DC voltages and currents in an electric circuit (Q-point, operating point). Second it deals with measurement of selected dynamic properties of amplifier with bipolar transistor. Theoretical knowledge is presented on the practical circuit by a laboratory measurement of the selected properties. The measurement is automated using a computer with LabVIEW software. User programs are developed for measuring the V-A characteristics of a bipolar transistor and for measuring selected dynamic properties of the amplifier. The thesis points out a convenient approach in development of new software for automated measurement using graphical programming in LabVIEW.
|
|
|
Regulated power supply 50V/5A
Herman, Tomáš ; Vorel, Pavel (referee) ; Huták, Petr (advisor)
Bachelor´s thesis deals with the adjustable DC voltage source. The first part deals about the typical involvement of resources and consequently the properties of individual components resources. The second part is the actual design of control circuits, selection of components, wiring and PCB design.
|
|
|
Drivers for power SiC MOSFET transistors
Vitek, Vojtech ; Vorel, Pavel (referee) ; Procházka, Petr (advisor)
The bachelor thesis describes gate driving principles of power MOSFET transistors made of silicon carbide material. The autor's aim is describing a different types of gate drivers and basic rules during process of designing gate drivers. In the theoretical part, the author will mount printed circuit board of gate driver designed on UVEE FEKT VUT Brno and verify functionality.
|
|
|
Basic measurement of dynamic properties of bipolar and unipolar transistors
Lang, Radek ; Šotner, Roman (referee) ; Dřínovský, Jiří (advisor)
The aim of this bachelor’s thesis is to describe the dynamic parameters of semiconductor devices. The other aim is to build a measuring workplace, on which is possible to carry out measurement of dynamic properties of bipolar and unipolar transistors. The bachelors’s thesis also solves a design and a production of an universal product, on which measurements are carried out. Individual measurement is automated and individual devices are connected to the product and results are controlled by computer analysis.
|
|
|
Drivers for power switching transistors GaN MOSFET
Fiala, Zbyněk ; Pazdera, Ivo (referee) ; Vorel, Pavel (advisor)
The thesis describes the procedure during the proposal of the driver circuits for the GaN MOSFET transistors, which are known for their fast switching especially. In the first instance of this thesis the issue of GaN MOSFET transistors is described and also the thesis describes the different types of MOSFET transistors in the way of their electrical and mechanical attributes. The specific type driver circuit is stated in the thesis, which was selected in the semestral thesis. For this circuit the boost converter with an output power 600W and high switching frequency 800kHz was proposed as an attempt measurement circuit. This boost converter was measured after its construction was done. The waveforms captured by the oscilloscope are commented also. In the conclusion the assessment is done about this new technology of power switching transistors.
|
|
|
Circuit Theory and Vizualizations
Molík, Petr ; Kaluža, Vlastimil (referee) ; Kunovský, Jiří (advisor)
This Bachelor thesis is concerned with modern method of interpretation and presentation of the Circuit theory. Clearly illustrates and with applied tests demonstrates theory, which is learned in Circuit theory subject, part of Bachelor's degree study program on Information technology on Brno University of Technology. Thesis consists of short introduction into method of visual education, main elaborated topics and description of prepared information system, which cover whole project. Thesis ends with system evaluation and usage of topics for students and references by students, they have already used described project.
|
|
|
Design of switch-mode audio power amplifier
Macek, Libor ; Petržela, Jiří (referee) ; Brančík, Lubomír (advisor)
This paper is divided into four parts. The first part deals with the description and explanation of the general principles of switching concept amplifiers. The second part is occupied with design of Class-D amplifier, a description of each block and calculations. A significant part of proposal of amplifier is based on simulations from programs Pspice and Filter Free. In the third part deign of power unit is discussed. The last part is focused on the measurement results on a prototype device.
|
|
|
Design of Digital Circuits at Transistor Level
Kešner, Filip ; Šimek, Václav (referee) ; Vašíček, Zdeněk (advisor)
This work aims to design process of integrated circuits on the transistor level, specially using evolutionary algorithm. For this purpose it is necessary to choose reasonable level of abstraction during simulation, which is used for evaluation candidate solutions by fitness function. This simulation has to be fast enough to evaluate thousands of candidate solutions within seconds. This work discusses already used techniques for transistor level circuit design and it chooses useful parts for new design of faster and more reliable automated design process, which would be able to design complex logic circuits. The thesis also discusses implementation of this system and used approach with regard to encountered problems in transistor-level circuit design and optimization by evolution.
|
guest ::
