|
|
Single-phase DC/AC converter with output parameters 230 V / 50 Hz / 100 VA
Smolák, Martin ; Martiš, Jan (referee) ; Vorel, Pavel (advisor)
This master‘s thesis focuses on optimization of power and control circuits of an inverter, which was developed at UVEE. The principle of function and circuit implementation of a single-phase inventer, various calculations (design of an LC filter, DC link capacitor, semiconductor elements and heat sink) are described in the thesis. A design of fast overcurrent protections, oscillator and saw signal generator is included. Furthermore, a printed circuit board was designed which was optimized by thermal simulation in the Workbench Ansys. Subsequently, the printed circuit board was mounted, debugged and verification measurements were performed on it. At the end of the thesis there is a documentation for the implemented equipment.
|
|
|
Class D 2.1 audio amplifier for laboratory measurements
Děcká, Klára ; Polák, Ladislav (referee) ; Kratochvíl, Tomáš (advisor)
This semestral thesis deals with a draft and construction of the design of an class D audio amplifier with pulse width modulation. The resulting design consists of a supply protection, an active crossover and the output power stage itself. The amplifier is made in 2.1 configuration, the amplifier for mid/high audio frequency drives 2 × 30 W output into a 8 load, subwoofer drives 1 × 100 W into a 2 load. The control centre of the whole application is an integrated circuit TPA3116D2 by Texas Instruments company. The resulting audio amplifier will be used as a device for laboratory measurements.
|
|
|
Design of class D audio power amplifier for home use
Raba, Jaroslav ; Kratochvíl, Tomáš (referee) ; Brančík, Lubomír (advisor)
This thesis describes the design and construction of a complete audio power amplifier 2x100W of Class D. The proposal contains an active correction preamplifier unit, a power supply unit and indicator unit of the amplifier excitation. The power amplifier is composed of an integrated circuit TAS5611A from Texas Instruments. The correction preamplifier is controlled by four potentiometers. Excitation of the amplifier is displayed using LEDs. Basic parameters are measured and evaluated for all blocks of the amplifier.
|
|
|
Controllable source supplied and controlled via USB
Sedláček, Michal ; Číž, Radim (referee) ; Pavelka, Ondřej (advisor)
Master thesis deals with design controllable switching power source. Device is supplied and controlled via USB bus of PC. The required output parameters are specified by user in a computer application. The teoretical part includes method of USB communication and introduction to switching power sources with focus on a Sepic topologii. The practical part describe individual circuit solution which contains of a complete device. Is analyzed in detail the proposal Sepic converter circuit and controling by microcontroller. The work also includes the design of microcontroller and computer applications. The result of this thesis is a functional device on which is the performed measurement.
|
|
|
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.
|
|
|
Audio amplifier with PWM modulation for laboratory measurements
Holub, Josef ; Petržela, Jiří (referee) ; Kratochvíl, Tomáš (advisor)
This paper deals with the theoretical analysis of the essential parts of amplifier operating in Class D. It describes the principles and the relationship between the individual blocks. The second part deals with the design of the block connection of a switched amplifier for a laboratory device. The design part contains calculations, justification of the selection of individual components and integrated circuits and schematic connection within the individual blocks. Some blocks are simulated using PSpice and FilterFree. The work also deals with the structural design of the jig and the creation of a 3D model. The annex is contained overall diagram of an amplifier and a complete reference material for production.
|
|
|
Single-phase DC/AC converter with output parameters 230 V / 50 Hz / 100 VA
Smolák, Martin ; Martiš, Jan (referee) ; Vorel, Pavel (advisor)
This master‘s thesis focuses on optimization of power and control circuits of an inverter, which was developed at UVEE. The principle of function and circuit implementation of a single-phase inventer, various calculations (design of an LC filter, DC link capacitor, semiconductor elements and heat sink) are described in the thesis. A design of fast overcurrent protections, oscillator and saw signal generator is included. Furthermore, a printed circuit board was designed which was optimized by thermal simulation in the Workbench Ansys. Subsequently, the printed circuit board was mounted, debugged and verification measurements were performed on it. At the end of the thesis there is a documentation for the implemented equipment.
|
|
| |
|
|
Class D 2.1 audio amplifier for laboratory measurements
Děcká, Klára ; Polák, Ladislav (referee) ; Kratochvíl, Tomáš (advisor)
This semestral thesis deals with a draft and construction of the design of an class D audio amplifier with pulse width modulation. The resulting design consists of a supply protection, an active crossover and the output power stage itself. The amplifier is made in 2.1 configuration, the amplifier for mid/high audio frequency drives 2 × 30 W output into a 8 load, subwoofer drives 1 × 100 W into a 2 load. The control centre of the whole application is an integrated circuit TPA3116D2 by Texas Instruments company. The resulting audio amplifier will be used as a device for laboratory measurements.
|
|
|
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.
|
guest ::
