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Li-ion Batery Management System
Kratochvíla, Lukáš ; Macho, Tomáš (referee) ; Kopečný, Lukáš (advisor)
This thesis is about systems for Li-ion batteries. The system consists of measuring and charging. The main part of system is 3 to 5-Series Cell Li-Ion and Li-Phosphate Battery Monitor chip BQ76920. The result of this thesis is printed circuit board (PCB) with BQ76920 and a box contain PCB and battery pack. The system has been tested and measured and evaluated in this thesis.
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Battery Management Systems for LiFePO4 Accumulators
Sejkora, Petr ; Krajsa, Ondřej (referee) ; Kubánek, David (advisor)
This thesis is about BMS systems for the protection, management and supervision of battery-assemblies serial combination of multiple cells. Next part of the thesis is about facilities for an elementary protection of individual cells before overcharging and undervoltage. Draft shall take into consideration the simplicity, low idle power, security function, modifiability for use with other threshold voltages and low cost design. Function is verified by simulating the operation and measuring.
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Accumulator Charger for Bicycle
Kufa, Jan ; Kubíček, Michal (referee) ; Šebesta, Jiří (advisor)
The aim of this thesis is to suggest a suitable way of charging mobile devices by using bicycle. In the first part of bachelor thesis there are discussed various options for charging the battery on a bicycle, described differences between the alternator and dynamo, and finally the different types of batteries. The second part describes in detail used blocks that were used in the engagement and the reasons of their choice. In the last section there are described the final parameters of the charger.
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Energy harvesting in wireless sensor networks
Pačinek, David ; Kučera, Pavel (referee) ; Hynčica, Ondřej (advisor)
This Bachelor's thesis is dedicated to the power of wireless sensors for use of alternative sources of supply, which is solar energy. The thesis performed on description of photovoltaic panels, availible batteries and their charging. The bachleor's thesis also shows the design and implementation of the circuitry for solar battery charger and datalogger consisting of a microcontroller and GSM module.
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Electrode Active Materials for Lithium-Ion Accumulators
Čech, Ondřej ; Oriňáková, Renáta (referee) ; Paidar,, Martin (referee) ; Sedlaříková, Marie (advisor)
This doctoral thesis deals with synthesis and characterisation of electroactive electrode materials for li-ion batteries and accumulators. The work is divided into two main parts. One deals with LiFePO4 based cathode composite electroactive material and in the second is described the synthesis and utilization of monoclinic TiO2(B) as an anode for li-ion cell. The main aim of the work is to relate the synthesis procedure and structural properties of both materials to its electrochemical preformance.
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River mionitoring system with GSM communication
Pačinek, David ; Šír, Michal (referee) ; Bradáč, Zdeněk (advisor)
This master thesis is dedicated to system of water monitoring for use of alternative source power supply and GSM communication. The thesis carried out research on the possibilities to take measurements on watercourses, also detailed research of photovoltaic panel, available accumulators and their charging and a synopsis of similar systems. Furthermore, the master thesis also captures design and implementation datalogger device type with possibility to send measured data to the website.
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