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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.00 seconds. 
Control system of laboratory stand for educational purpose
 Ondrejček, Vladimír ; Procházka, Petr (referee) ; Červinka, Dalibor (advisor)
This thesis proposes control circuit, that will be used in laboratory stand. The first part contains components that interact with the control circuit. The second part deals with the actual design of the control circuits, their design, appropriate selection of components and wiring. Third part deals with the assembly of the entire device and its commissioning.
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Laboratory test equipment for IGBT transistors
 Chvátlina, Pavel ; Vorel, Pavel (referee) ; Patočka, Miroslav (advisor)
This master’s thesis describes the function and realization of the laboratory test equipment designed for measuring and analysing of collector current iC and voltage uCE courses during the opening and closing process of a power IGBT transistor. The opening and closing times toff and ton of the new power transistor IGBT are changing in the range from tenths to the ones s, so the reading of current iC and voltage uCE proceeds in a very short time. The measuring circuit of this test equipment is based on a short-time discharging of a condenser battery to the inductive load over the measured transistor. Consequently it is possible to replace the power supply whose maximum output power would otherwise have to be in the range of ones MW. In the final part of this thesis there are described properties and design of a high-frequency sensor with the Rogowski coil, which can be used for reading collector current course during opening and closing time of the measured transistor IGBT. Collector current iC and voltage uCE courses can be analysed with a storage oscilloscope.
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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