National Repository of Grey Literature 193 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Battery monitoring and protection system
Hladík, Jan ; Červinka, Dalibor (referee) ; Knobloch, Jan (advisor)
This work deals with design of battery management system. Requirements for battery management system and its conception is discussed in the first part of the work. System is able to disconnect load or charger from battery using MOS-FET transistors. It measures battery cell's voltages and is capable of passive balancing. Microcontroller is used for data processing and system control. Schematics, printed circuit board layout and control algorithm was designed. Prototype of the battery management system was then manufactured and tested.
Switch mode supplies
Kadlecová, Lucie ; Červinka, Dalibor (referee) ; Patočka, Miroslav (advisor)
In this bachelor‘s thesis is described the design and construction of switch-mode power supply with a pulse transformer. It is mainly focused on projecting and putting into practice of the basic functional elements - LC filter, pulse transformer, transistor converter, transistor drivers, rectifiers and control circutory, including experimental testing of the final product.
Car-battery charger
Kadlec, Josef ; Procházka, Petr (referee) ; Červinka, Dalibor (advisor)
This bachelor’s thesis is considered by projection and construction of the car battery charger with switching source. One-pulsed conducting changer is base of this charger. The charger is intended for accumulators of nominate voltage 6 and 12V. Accumulators are charged by method of constant voltage with current limitation of 0.5A, 5A, 20A and 50A. Value 50A has reason during stating of car for example in winter, because the charger helps to battery. The device is equipped with additional protection, which protects the charger and also the accumulator and the supply network. Three pilot lights are the next equipment of the device.
Simple converter for three-phase asynchronous motor 100 W
Pilch, Tomáš ; Kadlec, Josef (referee) ; Červinka, Dalibor (advisor)
The aim of this Bachelor thesis is to propose a optimalization of an already implemented three-phase frequency converter to the higher electric output, using a different chopper circuit. Teoreticaly is possible to drive an asynchronous motor with power up to 2 kW.
Control board for educational laboratory stand
Cejpek, Miroslav ; Knobloch, Jan (referee) ; Červinka, Dalibor (advisor)
This work deals with the design scheme and printed circuit boards for drives teaching laboratory Stand, for teaching at the Department of Power Electrical and Electronic VUT Brno.
Motor parameter identification for laboratory stand
Lidmila, Petr ; Kadlec, Josef (referee) ; Červinka, Dalibor (advisor)
The goal of introduced thesis is to provide measurement of the engines used as a tutorial laboratory stand in the course “Electric drives”. Due to the absence of appropriate measurement centre, the main emphasis is laid on the modernization of older dynymometer, which is going to be used by the students. Dynymometer has been equipped with the electric speed and torque vbmeasurement, data from these measurements are displayed and evaluated by the digital devices very clearly and precisely. Engines parameters measurements has only marginal importance in this thesis.
High-Power Li-Ion Battery Charger for Electromobil powered by Hydrogen Fuell-Cells
Šuňal, Martin ; Červinka, Dalibor (referee) ; Hejkrlík, Jan (advisor)
Main target of this thesis is deisgn High-Power Li-Ion Battery Charger. The next step is realize and energize it. Charger is designed as switching power supply concretely with regulators and electronic protects.Convertrer is directed with integrated circuit UC3845. This intelligent charger enables to get a very high output current (30A) and it has small dimensions. Usage of DC/DC convertrer as a base of a charger has many advantages like easy output current control, small dimensions, low weight and low production costs.
Power supply module for servo-drive
Kudláček, Pavel ; Procházka, Petr (referee) ; Červinka, Dalibor (advisor)
The aim of the diploma thesis is to theoretically design and to put the mains power supply module for two-axis servo amplifier TZG 560 with the total power 28kW for the company TG Drives into practice. The analytical design of the power part with the braking circuit, the calculation of power components’ heat balance, EMI filter design and realization of measuring, controlling and indication circuits are described in the thesis. In addition, the mechanical device construction, structure of the controlling program and the results obtained in the verification process of the module functionality are presented.
Control system of laboratory stand for educational purpose
Ondrejček, Vladimír ; Procházka, Petr (referee) ; Červinka, Dalibor (advisor)
This thesis proposes control circuit, that will be used in laboratory stand. The first part contains components that interact with the control circuit. The second part deals with the actual design of the control circuits, their design, appropriate selection of components and wiring. Third part deals with the assembly of the entire device and its commissioning.

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