Sökning: "step-up converter"
Visar resultat 1 - 5 av 7 uppsatser innehållade orden step-up converter.
1. Analysis of a high step-up gain DC-DC converter for fuel cell and battery application
Kandidat-uppsats, Uppsala universitet/Institutionen för elektroteknikSammanfattning : In sustainable energy systems those using fuel cells, high step-up gain converters are widely used to increase the output voltage to levels that can be used by other converters, such as inverters for grid connection or powering other AC loads. In order to obtain a higher voltage gain, in comparison to a traditional boost converter, often different topologies techniques are involved. LÄS MER
2. Pre-study of optical LED units for shunting signals
M1-uppsats, KTH/Hälsoinformatik och logistikSammanfattning : Alstom wanted to investigate the possibility of adapting its light emitting diode (LED) technology for shunting signals in train traffic. The LED technology uses 50V, but Alstom wants to adapt it for 12V. The LED technology is energy efficient but needs to be adapted for existing signal interlocking by drawing a higher current. LÄS MER
3. Design and construction of a bidirectional DC/DC converter
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/ElektricitetsläraSammanfattning : A four quadrant general single-phase bi-directional DC/DC converter was designed and constructed for high effect systems. The target application for the DC/DC converter was to be used to transfer energy between different energy storages, a miniature DC power grid and the high voltage AC power city grid. LÄS MER
4. Thermal modeling of power electronic components in excitation systems
Uppsats för yrkesexamina på avancerad nivå,Sammanfattning : This thesis work aims at developing a model in Visual Basic for Applications and Microsoft Excel that can be used to predict temperatures in semiconductor devices for two commercial products made by Voith Hydro AB, and via simulation of the model determine the maximum current that can be conducted through the two products. The two products are called field exciters. LÄS MER
5. DC-DC Converter Design for Solar Power in Hot Environments
M1-uppsats, Linköpings universitet/Elektroniska Kretsar och SystemSammanfattning : A company in Linköping has a project where a solar power home system is designed. The plan is that families that lack grid connection in rural areas of Mali and other countries shall use this system for cooking food and powering every day items. LÄS MER