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Home security system - power supply
Sobotka, Jiří ; Bradáč, Zdeněk (referee) ; Fiedler, Petr (advisor)
The main goal of this bachelor thesis was to name all the requirements connected with alarm system power supply and to suggest a concept of a source with reserve lead-acid accumulator. Furthermore there is documentation of realisation of functional specimen. In this thesis there is a concept of stabilized power supply suppliyng the EZS components. The charging circuit for the lead-acid accumulator, connectors signaling the presence of system voltage and indicating connectors for low accumulator voltage. In the concept you can also find accumulator disconnector in case of low accumulator voltage ( liquidation accumulator voltage ). There is also piezobuzzer for the alert put on by switchboard station. The power supply was designed on the printed circuit board (PCB) and together with leadacid accumulator and transformator were placed in one box to which the supply cable is drawn.
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Influence of the pulse charge on properties of the lead acid batteries
Zbožínek, Štěpán ; Vaculík, Sebastian (referee) ; Křivík, Petr (advisor)
The presented master´s thesis deals with lead-acid batteries and methods of their charging. First part shortly describes the problems of lead-acid batteries. There are introduced common principles, type of construction and requirements, that should be complied with lead-acid batteries. Following part discusses the basic characteristics of charging. There is given a detailed description of current pulse charging method, on which is also mainly focused this master´s thesis. For this charging method, several basic experiments were done in order to verify functionality of the measuring device, software, the tested cells and primarily to verify charging modes. The goal of this thesis is to find out suitable mode of pulse charging, which would be fast as well as tested cells-friendly. The conclusion of this master´s thesis contains a resume of acquired theoretical knowledge and an evaluation of measured results, on which was the appropriate charging mode proposed.
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Home security system - power supply
Sobotka, Jiří ; Bradáč, Zdeněk (referee) ; Fiedler, Petr (advisor)
The main goal of this bachelor thesis was to name all the requirements connected with alarm system power supply and to suggest a concept of a source with reserve lead-acid accumulator. Furthermore there is documentation of realisation of functional specimen. In this thesis there is a concept of stabilized power supply suppliyng the EZS components. The charging circuit for the lead-acid accumulator, connectors signaling the presence of system voltage and indicating connectors for low accumulator voltage. In the concept you can also find accumulator disconnector in case of low accumulator voltage ( liquidation accumulator voltage ). There is also piezobuzzer for the alert put on by switchboard station. The power supply was designed on the printed circuit board (PCB) and together with leadacid accumulator and transformator were placed in one box to which the supply cable is drawn.
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Influence of the pulse charge on properties of the lead acid batteries
Zbožínek, Štěpán ; Vaculík, Sebastian (referee) ; Křivík, Petr (advisor)
The presented master´s thesis deals with lead-acid batteries and methods of their charging. First part shortly describes the problems of lead-acid batteries. There are introduced common principles, type of construction and requirements, that should be complied with lead-acid batteries. Following part discusses the basic characteristics of charging. There is given a detailed description of current pulse charging method, on which is also mainly focused this master´s thesis. For this charging method, several basic experiments were done in order to verify functionality of the measuring device, software, the tested cells and primarily to verify charging modes. The goal of this thesis is to find out suitable mode of pulse charging, which would be fast as well as tested cells-friendly. The conclusion of this master´s thesis contains a resume of acquired theoretical knowledge and an evaluation of measured results, on which was the appropriate charging mode proposed.
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