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Design of current-steering DAC for differential IQ decoder
Klein, Miroslav ; Šotner, Roman (referee) ; Dřínovský, Jiří (advisor)
This master’s thesis deals with design of two channel digital to analog converter for automotive applications. In first part, different topologies of D/A converters and their properties are discussed, with focus on current steering topology. Second part deals with design of convertor topology and current steering application. In third part, all parts of designed convertor are described and simulations results are presented. The designed two channel D/A converter has differential current output with 11b resolution per channel.
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Simulator of current output 0-24mA
Mačišáková, Kateřina ; Benešl, Tomáš (referee) ; Bradáč, Zdeněk (advisor)
This bachelor thesis deals with design of very accurate current output simulator 0-24 mA with microcontroller with resolution 0.001 mA. In the thesis I deal with the market re-search with similar devices, theory and then with the conception of the whole system concept, with the identification of used components and with the evaluation of their suitability. I propose here a circuit diagram and a printed circuit board, which I then produce and install. For the resulting device I design and produce a box that will suita-bly complement and unify the entire system. I will revive the whole device, program it and test its functionality.
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Simulator of voltage output 0-10V
Mačišák, Martin ; Baštán, Ondřej (referee) ; Bradáč, Zdeněk (advisor)
This bachelor's thesis deals with the design of the voltage output simulator in range of 0-10 V with microcontroller. The part of my bachelor's thesis is theoretical outline of whole system, draft of this system and draft of source. Further creation of wiring diagrams and PCB. Fitting of PCB and programming. This thesis checks up the functionality of the draft and also of whole system. Next outputs are compare with required outputs. Literary research is integral to my bachelor's thesis.
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Simulator of voltage output -10V to +10V
Horváth, Michal ; Streit, Jakub (referee) ; Bradáč, Zdeněk (advisor)
This thesis is about voltage simulator with microcontroller. The thesis presents some of the available industrial concepts. After that custom design is being proposed of simulator. Hardware proposal includes schematic and printed circuit board design of simulator and power supply. After designing of hardware part, the thesis focuses on software developing. Eventually, the thesis focuses on measurement and discussing of measured results.
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Design and construction of double laboratory power supply
Klein, Miroslav ; Šebesta, Jiří (referee) ; Brančík, Lubomír (advisor)
This semester thesis deals with design of double laboratory DC power supply with adjustable voltage and current limitation. Power supply can work in two states. First state allows regulation of output voltage from 0V to 40V and current limitation from 0A to 3A. In second state the range of output voltage is from 0V to 18V and output current can be set from 0A to 6A. Both supplies are galvanically separated and can work independently, or can be combined. Whole power supply is digitally controlled by microcontroller.
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Audio D/A converter with external control using microcontroller
Špaček, Jan ; Stifter,, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
This diploma thesis deals with the design of a laboratory measurement tool with ADC converter for audio and low frequency signals. In the introduction part a theoretical background of the ADC and DAC conversions are outlined. In the next chapters the technical solution of the laboratory converter is presented, including DAC with integrated circuit AD1852 and completed with digital audio receiver CS8416. This circuit secures compatibility with external audio devices with digital interfaces, like SPDIF or AES3. The digital receiver and audio DAC are added with serial communication interface for setup of the most audio and input parameters. This setup is operated by external microcontroller ATmega32 and original firmware. The thesis contains block diagram and schematic layout of the laboratory converter, including complete technical documentation for the construction and design.
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Extension interfaces for FPGA developent board
Čáslavský, František ; Pavlík, Michal (referee) ; Bohrn, Marek (advisor)
This work deals with design of expansion modules for development kit Spartan-3 Starter kit. The objective of the work is to design modules with audio input and output and modules with video input and output. This work consists of exploring possibilities of connecting the modules, designing the modules, choosing suitable components for production of the modules, manufacturing prototypes, creating of software and user manuals. These modules will be utilized in lessons and will contribute to the possibility of exploring the VHDL programming language in greater depth.
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