|
|
Solar power inverter
Gottwald, Petr ; Boušek, Jaroslav (referee) ; Pavlík, Michal (advisor)
Tato práce se zabývá návrhem výkonového měniče určeného pro použití ve fotovoltaických systémech. Klíčovým je použití programovatelného hradlového pole (FPGA) pro realizaci řídicích funkcí. Do detailu jsou diskutovány aspekty návrhu spínaných měničů a na základě takto získaných poznatků je zkonstruován funkční vzorek měniče.
|
|
|
Signal generator for analog measurement approach
Gottwald, Petr ; Bohrn, Marek (referee) ; Fujcik, Lukáš (advisor)
The purpose of this bachelor thesis is the design of Xilinx XC3S200A FPGA-based, digital function generator for generating of sine waves, triangular waves and rectangular waves for evaluation of analog circuit characteristics. In the theoretical section of the thesis, basics of spectral analysis, digital-to-analog conversion and three most often used methods for digital signal synthesis (DDS, PWM, sigma-delta) are discussed. In the practical section of the thesis, DDS generator blocks are designed and described in VHDL language. The generator is intended to be fully controllable from PC computer via USB interface. PC control application was also designed. Analog circuits needed for output signal conditioning were designed and simulated. Simulation results are compared with measurement results in the final section of this thesis.
|
|
|
Solar Power Inverter
Gottwald, Petr
Design of a solar power inverter with 1 kW output power capability is discussed in this paper. Interleaved boost topology used in the step-up stage as well as the output full-bridge stage are described. Control block utilizing Field-programmable-gate-array (FPGA) is described as well.
|
|
|
Signal generator for analog measurement approach
Gottwald, Petr ; Bohrn, Marek (referee) ; Fujcik, Lukáš (advisor)
The purpose of this bachelor thesis is the design of Xilinx XC3S200A FPGA-based, digital function generator for generating of sine waves, triangular waves and rectangular waves for evaluation of analog circuit characteristics. In the theoretical section of the thesis, basics of spectral analysis, digital-to-analog conversion and three most often used methods for digital signal synthesis (DDS, PWM, sigma-delta) are discussed. In the practical section of the thesis, DDS generator blocks are designed and described in VHDL language. The generator is intended to be fully controllable from PC computer via USB interface. PC control application was also designed. Analog circuits needed for output signal conditioning were designed and simulated. Simulation results are compared with measurement results in the final section of this thesis.
|
|
|
Solar power inverter
Gottwald, Petr ; Boušek, Jaroslav (referee) ; Pavlík, Michal (advisor)
Tato práce se zabývá návrhem výkonového měniče určeného pro použití ve fotovoltaických systémech. Klíčovým je použití programovatelného hradlového pole (FPGA) pro realizaci řídicích funkcí. Do detailu jsou diskutovány aspekty návrhu spínaných měničů a na základě takto získaných poznatků je zkonstruován funkční vzorek měniče.
|
|
|
Reality TV
Follová, Klára ; Gottwald, Petr (advisor) ; Kopřivík, Roman (referee) ; Svoboda, Otakar (referee)
This work is focused on the TV Reality Show so-called Real TV, its history, types and similar TV shows. It also takes in account the basic principals of functioning of reality TV. One of the chapters is dedicated to so-called Special Environmental Show ? which is the type of The Chosen or Big Brother ? and their comparison.
Furthermore the problem of TV formats is being gone through ? their legal protection, format ?packages?, advantages and disadvantages of formats in comparison with the purchase of finalized shows and the original production. There are also mentioned the most influential format Sales Representatives.
The work is partly focused on financial, legal and production issues of creating Reality TV Shows and the specifics of using product placement and sponsoring of these shows. Stand-alone sections are devoted to the ethical issues of these shows and the possibilities of future development and also to some extreme real TV shows.
In conclusion the work talks about the motives of people who enter these shows and vice versa the influence of such shows on peoples behavior.
|
guest ::
