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Mains charger with variable output voltage.
Dittrich, Marek ; Šteffan, Pavel (referee) ; Boušek, Jaroslav (advisor)
Nowadays every portable electronic device, tool or machine is powered by some type of accumulator. It is not possible to standardize types because the use of batteries is influenced by the power output, capacity, weight or price. They also differ in charging voltage, depending on their chemical composition. For this reason, it is often necessary for each type to have its own charger. In this case, an attempt has been made to simplify charging and reduce charger procurement expenses by designing a charger with adjustable voltage from 2.6 V to 20 V. This range can cover the charging of most types of accumulators available on the market.
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Backup power supply with solar cell
Hrubý, Michal ; Brančík, Lubomír (referee) ; Kubíček, Michal (advisor)
Due to the modern trends of energy production from renewable sources, this thesis deals with backup power powered solar cell. Analyzes the principle of operation of the solar cell, describes its technological development. Describes types of commercially available accumulators and their specific properties and the recommended charging. It then focuses on the description of the activities used DC-DC converters and their specifics. The aim of this work is to construct a backup power device that uses USB, independent of the electric distribution network.
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Mains charger with variable output voltage.
Dittrich, Marek ; Šteffan, Pavel (referee) ; Boušek, Jaroslav (advisor)
Nowadays every portable electronic device, tool or machine is powered by some type of accumulator. It is not possible to standardize types because the use of batteries is influenced by the power output, capacity, weight or price. They also differ in charging voltage, depending on their chemical composition. For this reason, it is often necessary for each type to have its own charger. In this case, an attempt has been made to simplify charging and reduce charger procurement expenses by designing a charger with adjustable voltage from 2.6 V to 20 V. This range can cover the charging of most types of accumulators available on the market.
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|
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Backup power supply with solar cell
Hrubý, Michal ; Brančík, Lubomír (referee) ; Kubíček, Michal (advisor)
Due to the modern trends of energy production from renewable sources, this thesis deals with backup power powered solar cell. Analyzes the principle of operation of the solar cell, describes its technological development. Describes types of commercially available accumulators and their specific properties and the recommended charging. It then focuses on the description of the activities used DC-DC converters and their specifics. The aim of this work is to construct a backup power device that uses USB, independent of the electric distribution network.
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