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Digitally controlled electronic load
Kopka, Martin ; Boušek, Jaroslav (referee) ; Hejátková, Edita (advisor)
This thesis addresses the topic of electronic loads. The aim of the thesis is to design and construct a digitally controlled electronic load, allowing the user to operate the load through a user interface of the control panel. The theoretical introduction describes the principle of operation of electronic loads and their possible applications. Their basic circuit elements and their influence on circuit parameters are described. Special emphasis is placed on explaining the principle of operation of MOSFET transistors and effects of their long-term operation in saturation region. The thesis also covers the topic of error amplifiers and system stability analysis to ensure fast transient response. An integral part of the thesis is the actual design of the electronic load module and its control panel, including a description of the software elements ensuring safe and reliable device operation. The design is implemented, and its parameters are verified.
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Automatic System for Load Characteristics of Power Supplies Measurement
Vojtek, Michal ; Dřínovský, Jiří (referee) ; Šebesta, Jiří (advisor)
The target of this work is create device, which will automatic measure values for find out loading characteristics of power supply with help of built-in electronic load. In case, that source of current supply will for example DC/DC convertor, measurement of input current and input voltage will be possible. Then there is no problem with determinate total efficiency of this power supply. Measuring system will be conected via serial interface of type USB with computer. It will be possible to save found out values with help of control program for nother processing. Control unit of whole system will be suitable microcontroller.
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DC electronic load
Pavloň, Martin ; Kapinus, Tomáš (referee) ; Havlíková, Marie (advisor)
This document deals with description and measuring on the electronic loads, also describes user interface, working modes and electronic protections. Compares technical parameter of individual electronic loads. Discuss differences between resistive and electronic loads. Propose method to verify static and dynamic load. In the last part it deals with measuring on the electronic loads, according to proposed methods and with processing of measure data.
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Low frequency active artificial load
Lízner, Václav ; Papica, Petr (referee) ; Kubíček, Michal (advisor)
This diploma thesis is focused on synthetic loads, especially electronically controlled loads. The thesis analyse principles of mechanically and electronically controlled loads and theirs operation modes. The paper also carried out a search of AC loads available on the market. The parameters of the AC load were based on the requirements provided by client. The functionality of the designed load is verified by simulation. The thesis continues with realization of the designed schematics and bringing the load to function. At the last section of the thesis are detail parameters of the designed load verified by measurement.
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Power supply with current reversal
Hrdina, Adam ; Vorel, Pavel (referee) ; Huták, Petr (advisor)
This thesis describes the design of regulated power supply that allows the reverse direction of the current. The supply can as well work as an electronic load. The supply has continuous settings of voltage from 0 to 50 V and continuous settings of maximum current from 0 to 5 A. The first part of thesis consist general description of power supply and of electronic load. The second part then includes the main design of overall concept of the supply and design of individual components.
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Electronically adjustable active load for support of laboratory work – feasibility of an implementation
Němec, Pavel ; Hruboš, Zdeněk (referee) ; Šotner, Roman (advisor)
This master’s thesis deals with active electronic loads focusing mostly on alternating input signals. The principles and modes of both DC and AC loads are described, as well as the most important parameters of MOSFET transistor which is used as the main power component. It deals with designing a regulation circuit of an AC load in detail. This work also discusses the possibilities of realisation of the remaining parts of the device. At the end of the thesis the function of the designed regulation circuit is verified by simple measurements on a prototype.
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Electronic load
Doležel, Jiří ; Vorel, Pavel (referee) ; Huták, Petr (advisor)
Bachelor’s thesis deals with the analysis solutions and construction of the DC electronic loads. At the beginning, they describe the basic principles of electronic loads. In other parts of the work is compared commercial electronic loads, under which the requirements will be selected on the proposed electronic load. In other chapters of the work devoted to the design of schemes and selecting components for their manufacture, including dimensioning of cooling power parts. The last chapters are devoted to describing the design and measurement of electronic load.
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Laboratory electronic load 400 W
Horna, Aleš ; Szabó, Zoltán (referee) ; Steinbauer, Miloslav (advisor)
This thesis deals with the construction of a laboratory electronic load purpose of which is to test various sources of electric energy, for instance electronic power supplies or accumulators. The thesis states possible designs of electronic circuits forming such an electronic load, it mentions factory manufactured devices, it describes the way of designing parts of the device, choice of components, conduction of circuit simulations for function verification of designed circuits and mechanical construction.
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Digitally controlled electronic load
Bordovský, Tomáš ; Vochyán, Josef (referee) ; Kubíček, Michal (advisor)
This diploma thesis deals with analysis and exploration of design options, how to design and produce an electronic load. The paper discussed the possibilities of digital control. It also describes the principles of structural components and there was chosen one type variant which is designed to circuits and printed circuit boards. Moreover, the thesis also include technical drawings of mechanical parts. At the end of this paper, final soulution with measurements and parameters are presented.
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Electronic Load
Pivoňka, Václav ; Uher, Miroslav (referee) ; Beneš, Petr (advisor)
The purpose of this work is to develop an overview of application possibilities Agilent 6063B electronic load, measure the parameters of the electronic load and in a few cases, practically demonstrate its properties. For this purpose create LabVIEW sample application, which enable automation of measurement with electronic load.
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