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Design of switching-mode regulated power supply
Zelinková, Lenka ; Kováč,, Michal (referee) ; Brančík, Lubomír (advisor)
The thesis addresses the conceptual design and implementation of the switched-mode power supply having the adjustable dc voltage output up to 25V and current output up to 15A. The half-bridge topology is used for this supply. Design features and quantities are simulated in PSpice and Micro-Cap simulation tools. The thesis covers the simulation results, assembly data and the results measured on the implemented functional sample.
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Design and optimization of the helical antenna
Zelinková, Lenka ; Olivová, Jana (referee) ; Lukeš, Zbyněk (advisor)
The thesis contains the design of helical antennas for the assigned frequencies. The theoretical design is verified by parameter calculators. The design properties were verified in the computer simulator CST Microwave studio where the antennas were optimized to the maximum gain. The antennas intended as parabola feeds are completed with the designs of parabolas and focal distances between the antennas and the parabolas. Impedance matching by a quarter-wave transformer is designed for the antennas.
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Global Responsibility Education at Primary School
Zelinková, Lenka ; Stará, Jana (advisor) ; Krčmářová, Tereza (referee)
In todays complicated world global Education brings a new approach towards a man. Theoretical part of thesis introduces its philosophical bases, characteristics, teaching principles, environmental aspect and main objectives. It emphasises close connnection to other education areas and areas in the Czech educational system where global Education should be practised. Theses describes teaching methods for global Education suitable for primary school children. Work describes connection between development of self-belief and global responsibility of a child. Empiric part uses methods of interview, observation and educational artefact analysis. Results approve importance of the artefact supporting self-belief in educational process.
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Global Responsibility Education at Primary School
Zelinková, Lenka ; Stará, Jana (advisor) ; Krčmářová, Tereza (referee)
In todays complicated world global Education brings a new approach towards a man. Theoretical part of thesis introduces its philosophical bases, characteristics, teaching principles, environmental aspect and main objectives. It emphasises close connnection to other education areas and areas in the Czech educational system where global Education should be practised. Theses describes teaching methods for global Education suitable for primary school children. Work describes connection between development of self-belief and global responsibility of a child. Empiric part uses methods of interview, observation and educational artefact analysis. Results approve importance of the artefact supporting self-belief in educational process.
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Design and optimization of the helical antenna
Zelinková, Lenka ; Olivová, Jana (referee) ; Lukeš, Zbyněk (advisor)
The thesis contains the design of helical antennas for the assigned frequencies. The theoretical design is verified by parameter calculators. The design properties were verified in the computer simulator CST Microwave studio where the antennas were optimized to the maximum gain. The antennas intended as parabola feeds are completed with the designs of parabolas and focal distances between the antennas and the parabolas. Impedance matching by a quarter-wave transformer is designed for the antennas.
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Design of switching-mode regulated power supply
Zelinková, Lenka ; Kováč,, Michal (referee) ; Brančík, Lubomír (advisor)
The thesis addresses the conceptual design and implementation of the switched-mode power supply having the adjustable dc voltage output up to 25V and current output up to 15A. The half-bridge topology is used for this supply. Design features and quantities are simulated in PSpice and Micro-Cap simulation tools. The thesis covers the simulation results, assembly data and the results measured on the implemented functional sample.
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