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Lead-acid battery charger with a pulse converter
Mihályi, Róbert ; Martiš, Jan (referee) ; Vorel, Pavel (advisor)
This master´s thesis discusses on complete designing of a lead-acid accumulator charger. Charger operates with the principle of a two-switch forward converter. It contains the design and manufacturing of all the proposed winding subcomponents, the semiconductor components, the control circuit board and the power circuit board. This thesis includes also the design and description of the individual parts of the power circuit and control circuit. The revival of the charger, including a description of the individual adjustments that were necessary for proper and reliable operation is also in the content. This thesis contains too a series of measurement performed to verify the correct function of the charger.
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Converter for DC motor with sensorless speed control
Hanzl, Ondřej ; Martiš, Jan (referee) ; Tománek, Radek (advisor)
The scope of the work is the design and implementation of a test sample of a converter with sensorless speed control for a DC motor with permanent magnets. The whole device consists of two main parts, namely a two-switch forvard converter, which serves both as a power source with parameters 0 ÷ 60V/0 ÷ 20A for laboratory purposes, and as a power supply for a four-quadrant pulse converter for the speed control of the electric motor. The control of both converters is ensured by digital control circuits. All components are placed on printed circuit boards of standardized dimensions as plug-in modules designed to be built into the instrument cabinet for easy disassembly and accessibility in case of checking measurements.
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Lead-acid battery charger with a pulse converter
Mihályi, Róbert ; Martiš, Jan (referee) ; Vorel, Pavel (advisor)
This master´s thesis discusses on complete designing of a lead-acid accumulator charger. Charger operates with the principle of a two-switch forward converter. It contains the design and manufacturing of all the proposed winding subcomponents, the semiconductor components, the control circuit board and the power circuit board. This thesis includes also the design and description of the individual parts of the power circuit and control circuit. The revival of the charger, including a description of the individual adjustments that were necessary for proper and reliable operation is also in the content. This thesis contains too a series of measurement performed to verify the correct function of the charger.
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