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Quadrophonic audio amplifier for home use
Gavlák, Antonín ; Kratochvíl, Tomáš (referee) ; Brančík, Lubomír (advisor)
This bachelor work describes the design quadraphonic audio amplifiers for home use that works in class AB. The proposal includes a correction preamplifier integrated circuit LM1036 and power amplifier monolithic integrated circuit LM3886 to the output impedance of 8 with appropriate cooling power element. The work also deals with suitable power supply units and soft start circuit for the amplifier. The work contains materials for the construction of a functional prototype of the low-frequency power amplifier and the results of laboratory measurements.
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Uninterruptible power supply for Robotics
Kejík, Petr ; Ligocki, Adam (referee) ; Burian, František (advisor)
This Bachelor thesis deals with the design and construction of a DC power supply unit with the possibility of battery backup power. The device in intended as an uninterruptible power supply for robotic devices. Thanks to its modularity it can also be used to power other small appliances and it can be easily expanded with more functions. In the designed configuration, the device contains two identical output modules, which together provide four independent power outputs. The power output voltages are adjustable in the range of 3–20 V, with a maximum considered continues current of 6 A. Digital control of modules and monitoring of critical parameters is procured through two Atmel ATmega32U4 microcontrollers placed on separate main board. Configuration and communication with the device it self is done via a local user interface (display and keyboard) and USB port (virtual seriál interface). Main power supply is provided by means of an external commercial DC power source producing voltage in the range of 30–38 V. Backup operation is secured from a 24V lead-acid battery, which is also recharged in normal conditions
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PDU with Consumption Metering Function for Single-Board Computers
Ondráček, Roman ; Růžička, Richard (referee) ; Šimek, Václav (advisor)
The aim of this thesis is to design a power distribution unit for single-board computers that can switch its individual outputs and also measure electrical quantities (voltage, current and power) based on the Espressif ESP32 platform and to design a web interface for the management of these power distribution units. This solution will be mainly aimed for the use of power distribution units in the development process of embedded devices built on top of single board computers. The proposed solution consists of a power distribution unit and a management information system, the communication between the different parts is done using the MQTT protocol. The information system can be used to control the individual outputs of the power distribution unit, to view graphs of the measured quantities.
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Uninterruptible power supply for Robotics
Kejík, Petr ; Ligocki, Adam (referee) ; Burian, František (advisor)
This Bachelor thesis deals with the design and construction of a DC power supply unit with the possibility of battery backup power. The device in intended as an uninterruptible power supply for robotic devices. Thanks to its modularity it can also be used to power other small appliances and it can be easily expanded with more functions. In the designed configuration, the device contains two identical output modules, which together provide four independent power outputs. The power output voltages are adjustable in the range of 3–20 V, with a maximum considered continues current of 6 A. Digital control of modules and monitoring of critical parameters is procured through two Atmel ATmega32U4 microcontrollers placed on separate main board. Configuration and communication with the device it self is done via a local user interface (display and keyboard) and USB port (virtual seriál interface). Main power supply is provided by means of an external commercial DC power source producing voltage in the range of 30–38 V. Backup operation is secured from a 24V lead-acid battery, which is also recharged in normal conditions
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Quadrophonic audio amplifier for home use
Gavlák, Antonín ; Kratochvíl, Tomáš (referee) ; Brančík, Lubomír (advisor)
This bachelor work describes the design quadraphonic audio amplifiers for home use that works in class AB. The proposal includes a correction preamplifier integrated circuit LM1036 and power amplifier monolithic integrated circuit LM3886 to the output impedance of 8 with appropriate cooling power element. The work also deals with suitable power supply units and soft start circuit for the amplifier. The work contains materials for the construction of a functional prototype of the low-frequency power amplifier and the results of laboratory measurements.
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