|
|
Switching benchtop power supply 0-30 V, 0-5 A
Galia, Jan ; Pazdera, Ivo (referee) ; Martiš, Jan (advisor)
This thesis deals with the design and construction of switching mode power supply for lab application. Convertor is based on the forward topology with adjustable output voltage regulation from 0 to 30V and with maximal output current 5A. Antoher features of this power supply is adjustable current limiting function which can be set from 0 to 5A. For closed loop control was chose analogue cascade regulation.The contol part consists of operation amplifire TL072 and SG3525 contorl circuit.
|
|
|
Comlete design of class D power amplifier
Bistrý, Jan ; Šotner, Roman (referee) ; Petržela, Jiří (advisor)
In this bachelor's project was at first described a principle of class D power amplifiers. There was performed a characteristic of particular blocks. In the concrete steps were described particular solutions of these amplifiers with PWM driver, amplifier as an IC chip and were described advantages of this topology. It was performed an overview of the modern integrated amplifiers which are currently available. According to further requirements of this bachelor's project were designed a scheme and a board of printed circuit for this amplifier. In more details were described possibilities of output LC filter and performed its simulation. At the conclusion of this project was performed a laboratory measurement of realized amplifier which verified its performance and compliance with engaged parameters.
|
|
|
Portable music player
Rozsíval, Adam ; Šotner, Roman (referee) ; Dřínovský, Jiří (advisor)
The thesis deals with the project of a portable music player with an amplifier in the class D. The device is powered up by connected power supply unit, eventually by built-in accumulator. Audio signal is played by bluetooth module, sound card or headphone output. Switching inputs and power supply of the accumulator is managed by a micro-controller. A correction equalizer for sound control is also embedded in the booster. All peripheries are put into a wooden baffle board. The sound is reproduced by a pair of loudspeakers.
|
|
|
MATLAB/Simulink Model Based Design Using C2000 Microcontrollers
Šoupal, Ondřej ; Ctibor, Jiří (referee) ; Pazdera, Ivo (advisor)
The aim of this thesis is to explore possibilities of rapid control prototyping, describe the concept of creating the software application in MATLAB/Simulink environment with use for development kit Texas instruments LaunchPad and create an application for DC and induction motor control in this environment. This work describes the application for unipolar/bipolar control H-Bridge of power converter for DC motor, measurement of output currents, speed and its displaying in real time using serial control interface. This thesis also desribes scalar and vector control of induction motor. All software applications with measurements are created in MATLAB/Simulink and attached to the thesis.
|
|
|
Controlled light source
Pazderský, Tomáš ; Macků, Robert (referee) ; Škarvada, Pavel (advisor)
The aim of the Master´s thesis is proposing and implementation of computer controlled optical radiation source. The theoretical part describes the photometric, the radiometric quantities, applied components such as LED, the microcontroller and possible methods for the LED brightness control. The development of the device is described from the selection of the individual LEDs to the end of the device assembling and programing. On the several LEDs were made properties measurement. A circuit with microcontroller was designed and then was fabricated. The device was programmed for communication and control from the PC. The entire electronic is fitted in the metal frame of the construction box and finally the device functionality is tested.
|
|
|
Digital audio amplifier with universal inputs
Svadbík, Pavel ; Stifter,, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
This diploma thesis deals with digital audio amplifier with universal inputs and its design. The first part describes modulation and audio formats for audio electronics. The thesis contain design of a block diagram of the digital audio amplifier and describes the requirements for functional blocks. As a basic device for audio signal processing was choosen integrated circuit STA326. The thesis continue with circuits design for each blocks with a description of their principles. The next section describes the construction and firmware for microcontroller. The last part of this diploma thesis is targeted on the presentation of the measured parameters of the amplifier. The conclusion summarizes the results that have been achieved and advantages and disadvantages of the digital audio amplifier prototype.
|
|
|
Step-Up converter for mobile device
Gabriel, Petr ; Červinka, Dalibor (referee) ; Huták, Petr (advisor)
The purpose of this bachelor‘s thesis is about to intoduce possibilities of construction and use of switched power supplies. Thesis focuses mainly to description of different types of converters. There are possibilities of power supplie's design and sizing of its components described in this thesis. This thesis contains concrete design of power supply for realization. There are results of the measurement and comparision to the parameters given by manufacturer set forth at the end of this thesis.
|
|
|
Iverter for three-phase motor
Mikuška, Martin ; Červinka, Dalibor (referee) ; Knobloch, Jan (advisor)
This master’s thesis goes into design of particular circuits for three phase inverter. Inverter’s control is ensured by digital signal controller MC56F8013 with his program. Principle of control is suggested for individual motors. Inverter design considerate universal use and capability for any three phase motor. Particular blocks are compatible each other.
|
|
|
Microprocessor controlled inverter for motors
Fiala, Michal ; Červinka, Dalibor (referee) ; Knobloch, Jan (advisor)
This diploma thesis deals with design of universal converter used for motor control by microcontroller. The first part contains concept, functional overview of the device and its parts. The next part deals with mechanical design and construction of the converter and dimensioning of power, control and measurement circuits. The following part describes control algoritm used for three-phase motor and its testing using simulation. The final chapter of the thesis describes PCB mounting and testing of the device and control algoritm on real motor.
|
|
|
Algorithms for the Control of the Induction Motor
Hundák, Vladimír ; Běloušek, Radim (referee) ; Patočka, Miroslav (advisor)
Hlavným cieľom tejto práce je vytvorenie simulácií rôznych algoritmov riadenia asynchrónneho motora a vzájomné porovnanie ich vlastností. Zaoberá sa taktiež možnosťami konfigurácie náhradného zapojenia na T-článok, -článok a -článok. Obsahuje jednak teoretický rozbor, a taktiež aj simulácie jednotlivých spôsobov riadenia spolu s podrobným návodom na ich realizáciu. Celkovo budú vykonané 3 simulácie – simulácia vektorového riadenia s orientáciou na rotorový tok, vektorového riadenia s orientáciou na statorový tok a simulácia takzvaného prirodzeného riadenia. Ide o úplne nový typ riadenia, ktorého autorom je vedúci tejto diplomovej práce. Jeho simulácia bola vôbec prvým pokusom o funkčnú realizáciu tohto typu riadenia.
|
guest ::
