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Synthesis of the electronically reconfigurable frequency filters
Michalička, Filip ; Dvořák, Jan (referee) ; Langhammer, Lukáš (advisor)
This diploma thesis deals with design of reconection-less electronically reconfigurable filter structures which have single input and single output using unconventional active elements, which have ability to adjust one of their parameter e.g. gain or transconductance. The first part describes basic parameters of frequency filters, the division of filters by frequency transfer response and used circuit elements, their operational modes, the principle of reconnection-less electronically reconfiguration and the circuit design method MUNV. Second part describes all active elements used in the proposal of filters, their properties and the implementation using existing transistor-level models. The third part contains the design of three reconnection-less electronically reconfigurable filters and the simulations results obtained from simulation programs OrCAD Capture and PSpice. The obtained results were compared with theoretical behaviour. This part also contains results of these analyses: sensitivity, parasitic, Monte Carlo and temperature to determine the behaviour in varied cases.
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Synthesis of electronically configurable filters with modern active elements
Hricko, Tomáš ; Šotner, Roman (referee) ; Langhammer, Lukáš (advisor)
This bachelor thesis is concerned of proposal electronically configurable filters. The first part describes the basic division of frequency of filters and working modes alongside with the principle of electronically configuration. All active elements used in the proposal of presented circuit solutions are defined in the second section. The third part consist of the design of three circuits of electronically configurable filters and comparison of theory with simulation results obtained from program OrCAD PSpice. The concluding part of the work compares the experimental results of the implemented filters with the PSpice simulations.
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Fractional-order filter structures
Lefler, Filip ; Langhammer, Lukáš (referee) ; Dvořák, Jan (advisor)
Semestral thesis deals with fractional-order frequency filters. There is descripe proposal of the filter, their simulations and practical realizations. The first part is focused at the introduction to a frequency filters. The following is chapter which explore various proposals fractional-order frequency filters. The next chapter describes used activ elements in this thesis. Then there is briefly described a method of the signal flow graphs. The following is a description of the theoretical design of lowpass and highpass frequency filter, where order of the filter is between the first and second. Another part deal with the design and simulation of the four circuits. There are two curcuits consists of transconductance amplifiers (BOTA) and two curcuist consists of current followers. The last part of the thesis deals with practical realization of the two fractional-order filters.
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Misuse of Allowances in British Parliament
Svoboda, Jan ; Váška, Jan (advisor) ; Rovná, Lenka (referee)
The bachelor thesis is called Misuse of Allowances in British Parliament and its theme is the Expenses scandal in British Parliament in 2009. The thesis is divided into seven chapters. First chapter brings readers into the problem and describes a system of rewarding British MPs and allowances scheme at the time before the scandal. It is followed by chapters focused on the scandal beginning and reactions on the scandal. Firstly, reactions of media are described and then examples of MPs' reaction are provided. Secondly, reactions of political parties, official institutions and actions taken by the democratic system are studied. The next chapter is dedicated to the impact of scandal on the results of the European Parliament election in 2009 and General election in 2010. Finally, major points of the scandal are analyzed in the last chapter.
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Synthesis of the electronically reconfigurable frequency filters
Michalička, Filip ; Dvořák, Jan (referee) ; Langhammer, Lukáš (advisor)
This diploma thesis deals with design of reconection-less electronically reconfigurable filter structures which have single input and single output using unconventional active elements, which have ability to adjust one of their parameter e.g. gain or transconductance. The first part describes basic parameters of frequency filters, the division of filters by frequency transfer response and used circuit elements, their operational modes, the principle of reconnection-less electronically reconfiguration and the circuit design method MUNV. Second part describes all active elements used in the proposal of filters, their properties and the implementation using existing transistor-level models. The third part contains the design of three reconnection-less electronically reconfigurable filters and the simulations results obtained from simulation programs OrCAD Capture and PSpice. The obtained results were compared with theoretical behaviour. This part also contains results of these analyses: sensitivity, parasitic, Monte Carlo and temperature to determine the behaviour in varied cases.
|
|
|
Synthesis of electronically configurable filters with modern active elements
Hricko, Tomáš ; Šotner, Roman (referee) ; Langhammer, Lukáš (advisor)
This bachelor thesis is concerned of proposal electronically configurable filters. The first part describes the basic division of frequency of filters and working modes alongside with the principle of electronically configuration. All active elements used in the proposal of presented circuit solutions are defined in the second section. The third part consist of the design of three circuits of electronically configurable filters and comparison of theory with simulation results obtained from program OrCAD PSpice. The concluding part of the work compares the experimental results of the implemented filters with the PSpice simulations.
|
|
|
Misuse of Allowances in British Parliament
Svoboda, Jan ; Váška, Jan (advisor) ; Rovná, Lenka (referee)
The bachelor thesis is called Misuse of Allowances in British Parliament and its theme is the Expenses scandal in British Parliament in 2009. The thesis is divided into seven chapters. First chapter brings readers into the problem and describes a system of rewarding British MPs and allowances scheme at the time before the scandal. It is followed by chapters focused on the scandal beginning and reactions on the scandal. Firstly, reactions of media are described and then examples of MPs' reaction are provided. Secondly, reactions of political parties, official institutions and actions taken by the democratic system are studied. The next chapter is dedicated to the impact of scandal on the results of the European Parliament election in 2009 and General election in 2010. Finally, major points of the scandal are analyzed in the last chapter.
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|
|
Fractional-order filter structures
Lefler, Filip ; Langhammer, Lukáš (referee) ; Dvořák, Jan (advisor)
Semestral thesis deals with fractional-order frequency filters. There is descripe proposal of the filter, their simulations and practical realizations. The first part is focused at the introduction to a frequency filters. The following is chapter which explore various proposals fractional-order frequency filters. The next chapter describes used activ elements in this thesis. Then there is briefly described a method of the signal flow graphs. The following is a description of the theoretical design of lowpass and highpass frequency filter, where order of the filter is between the first and second. Another part deal with the design and simulation of the four circuits. There are two curcuits consists of transconductance amplifiers (BOTA) and two curcuist consists of current followers. The last part of the thesis deals with practical realization of the two fractional-order filters.
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