|
|
BLDC drive control
Havlíček, Jiří ; Buchta, Luděk (referee) ; Otava, Lukáš (advisor)
The bachelor thesis is focused on problems of sensor control of Brushless DC Electric motor (BLDC) using hall-effect sensors. The BLDC motor is connected to 3-Phase low-voltage board which was produced by Freescale Semiconductor, Inc. The board is adapted to control electrical motors by MC56F8006 signal microcontroller. The next part is devoted to implementation of interconnection of the machine with the Matlab/Simulink programme using the MF 624 multifunction I/O card. Cascaded control, current and speed loops are used for the final configuration. The former loop is realized in the signal microcontroller, the latter one in the Simulink programme.
|
|
|
Compact inverter for BLDC motor
Nevřivý, Tomáš ; Červinka, Dalibor (referee) ; Procházka, Petr (advisor)
The work describes the design and implementation of compact inverter for brushless DC motor, which have mechanical power 600 W and rated torque 1.6 Nm. Motor is designed for DC link voltage with value 300 V. The focus is placed on the cost and simplicity. On this basis, the inverter is designed for uses single purpose power and control circuit. The power part is solved using a circuit FSBB15CH60C. The circuit is placed on a separate board of power electronics. Cooling of the power circuit is performed by the surface structure of BLDC motor. Control of the inverter ensures circuits LB11696V and NE566. The both circuits are placed on separate board of control electronics. Circuit LB11696V contains a control algorithm, as well as protections, which are necessary for safe operation of the inverter. Power supply of electronics is performed using step-down converter from MYRRA company.
|
|
|
Function generator
Húsek, Jan ; Mišurec, Jiří (referee) ; Káňa, Ladislav (advisor)
Bachelor`s thesis deals with design and realization of one possible solution of function generator with use of integrated circuit XR 2206. This function generator operates in frequency range 10Hz – 100kHz and it is designed to generate square, triangle and sine waveforms with variable duty and output amplitude to 10Vpp. Function generator contains inputs for amplitude and frequency modulation.
|
|
|
TheStudy of Security Contracts, Focusing on Customs Issues in the Enterprise
Martináková, Jana ; Denková, Jana (referee) ; Jurová, Marie (advisor)
The diploma thesis is focused on possible customs issues during order processing in the manufacturing company. The theoretical part of this thesis contains definition of the world trade basic terms and a description of the customs clearance process. In the practical part, there is a description of the ordering procedure with attention to customs issues and rules in international trade. It includes a project draft which should provide the company with the improvement of the monitored indicators such as the quantity of delayed deliveries for distribution centers or the number of customs inspections.
|
|
|
DC switching power supply
Látal, Jiří ; Folprecht, Martin (referee) ; Lažek, Tomáš (advisor)
Bachelor’s thesis discusses the design of an adjustable DC/DC converter with an output voltage of 30 V and a current of 10 A. The first part described three basic DC/DC converter topologies and the scheme of power and control structure of the converter. As a suitable topology of power supply was selected a two-switched forward converter. The integrated circuit SG3525ADWR2G was chosen as the PWM modulator for the converter. The second part of the thesis described the design and testing of the switch mode power supply.
|
|
|
Risk assessment design margin of process and power equipment
Horsák, Jan ; Pačíska, Tomáš (referee) ; Jegla, Zdeněk (advisor)
This work is devoted to description of methodology of determining process and power equipment design margins, which is based on assessment of a relative process importance of the equipment in question. The methodology is theoretically analysed, brought into context of common design practice and demonstrated on actual cases. Substantial part of this work analyses heat transfer in general as a base of heat exchanger design process.
|
|
|
Timelessness
Svoboda, Jonáš ; Turek, Filip (referee) ; Cenek, Filip (advisor)
Calm film tries to be a kind of portrait of a young free life in the city. Freedom, upachtěnosti. It's a portrait of notes from phone, lemonade flavored with emptiness. Humbly evaporate. Passionate amateurism, because the toilet are not alone, there is with thee Wittgenstein. The fact that we saw a squirrel as a mouse eats. The fact that when we go to town, so we are pretty huge. The fact that it all actually means something. "Vynuděnej klidňák" Lord hate emotions and Jagr afloat bet. The fact that I have one whole night inhaled Pizza Hawaii, which became Pizza Pearl Harbour because I fell asleep. The fact that it is good then the rest of charcoal dance. About how he met at kávomatu dudes, gunk and artificial intelligence to agreed that hate and love must prevail over truth and falsehood. Instead, after a quill on the bottom of the crucible DNA they found God. Then came the doorman and said that the school is non-smoking. And then there is the moment when we lack love, peace, and we have a long time we were visiting. The fact that we were in rehab and has since everyone involved. The fact that Tomas přidělal the old wheel chair and wrote on it "ZEUS". Contemplation of revolting tag Elektro Planeo on the wall. Because staring contest with the camera is a job like any other. The fact that my vegetables says I'm outside because he hates anyone who is interesting. A tag is an interesting question - "is not a vegetable shit?" Humor in the joy of grief. Because I have sympathy with the man who has read this. Something is simply in a poem trapped and can not get out. The method of the Hitler-Stalin-Picasso, the smell and pain, emptiness and dullness, sabotage and nervousness, contactless man, colorful variety of residues of superpowers in said "yes" and the superhero resistant to alcohol. Nuclear metaphysics in a world where the Lord God far and high. In the role of a collector's Bizarre man playing Lord dimes with the task to deliver power to the last ten-kávomatu fate. The Old Man and the wine, which put on a fag and he will tell you that genius is hiding at the bottom, vigilance and misunderstanding diletující memory and increasingly sadder smile. Nasty weather and the feeling that "next door is fucking nations" - (Paul Ondračka - The celebration of music and poetry). Method free stream of consciousness portrayed as a method of glaciers. The fact that the last time I lost my laptop when I tried if underwater works wifi. Dementia and escape from evil - as far as possible. Trying to focus, at least for a while. Since I was working basically a documentary (- the film's treatment of captured video archives), the choice of media video-essays, hence the film entirely clear. The illustrated try to look out of their personal, participant of view, but also with a "judgmental - documentary apart." I inspiration for creating Calm sought mainly in the work of Werner Herzog, Karel Vachek and their relation to the relativity of truth and nature. Compared with its previous results, which were more experimental in nature evaluate his work as a targeted and focused. The aim of the work is a portrait of the place, time and people. He has absolutely no practical benefit, except perhaps enrich the viewer's soul and portrait modes.
|
|
|
Obligations of patients and possible sanctions for their violation
Moldanová, Miriam ; Dvořáková, Vladimíra (advisor) ; Jirkovský, Daniel (referee)
The bachelor's thesis is focused on the area of patient obligations and possible sanctions for their violation. The theoretical part defines the specific rights of patients, which directly result from defined obligations, in case of non-fulfilment of which the medical facility can apply specified sanctions on behalf of authorized persons. The theoretical definition of the issue is followed by a research investigation. The empirical part is devoted to quantitative research, which was carried out on the basis of an own research investigation. The research examines the knowledge of Motol FN nurses in the area of patient obligations and the application of possible sanctions for their violation. The results of the survey are then compared with the results of another survey. The method of the research investigation is a self-constructed questionnaire. For subsequent data processing, 102 questionnaires are selected from the total number of 125 questionnaires received, which contain completely answered questions and a matching control question. The results of correct answers vary significantly from question to question. 96 % of the nurses answered correctly to the question whether it is possible to collect an unpaid amount from the patient for a medical procedure provided that is not covered by public...
|
|
| |
|
|
DC switching power supply
Látal, Jiří ; Folprecht, Martin (referee) ; Lažek, Tomáš (advisor)
Bachelor’s thesis discusses the design of an adjustable DC/DC converter with an output voltage of 30 V and a current of 10 A. The first part described three basic DC/DC converter topologies and the scheme of power and control structure of the converter. As a suitable topology of power supply was selected a two-switched forward converter. The integrated circuit SG3525ADWR2G was chosen as the PWM modulator for the converter. The second part of the thesis described the design and testing of the switch mode power supply.
|
guest ::
