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National Repository of Grey Literature 13 records found  previous11 - 13  jump to record: Search took 0.01 seconds. 
Realization of small microprocessor controlled converter for stepper motors
 Krejčí, Ondřej ; Pochyla, Martin (referee) ; Knobloch, Jan (advisor)
This bachelor’s thesis the use of stepper motors. The following text provides an overview of different types of stepper motors and explains how these motors work and how they can be controlled. This theoretical knowledge has been used for an electronic circuit design and realization that is focused on stepper motor controlled by a microcomputer Freescale MC56F8025.
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Control unit for BLDC motor
 Krejčí, Ondřej ; Cipín, Radoslav (referee) ; Procházka, Petr (advisor)
This master„s thesis elaborates with EC motors problematic. There are described essential features of brushless DC motors, their principles, construction and methods for rotor position detection. There are mentioned commonly used control algorithms of EC motors including theory of three-phase convertors. This thesis also contains a complex design of the universal convertor for EC motor and its practical implementation. Power parts losses calculation, heat-sink calculation and measurements at the convertor prototype are also described in this thesis.
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Public expenditure in czech budget system and state social support system
 Krejčí, Ondřej ; Urbánek, Václav (advisor) ; Maaytová, Alena (referee)
The Bachelor's Thesis examines public expenditure in the Czech Republic and related budget system. Besides description of public budgets and extra budgetary funds and descriptions of their revenues and expenditures the Bachelor's Thesis puts an emphasis on public expenditures on social policy, specifically on system of social security. This is followed by description of social benefits of state social support system, which is one of three parts social security. Finally, the Bachelor's Thesis focuses on parental allowance, which is important part of family policy in Czech Republic. The last part of the text focuses on possibilities of changes in providing this type of benefit.
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National Repository of Grey Literature : 13 records found   previous11 - 13  jump to record:
See also: similar author names
13 KREJČÍ, Ondřej
4 Krejčí, Oskar
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