Essays about: "AC DC Converter"

Showing result 1 - 5 of 49 essays containing the words AC DC Converter.

1. 1. Analysis of a high step-up gain DC-DC converter for fuel cell and battery application

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Kaj Törngren Sato; [2023]
   Keywords : Fuel cell; High step-up DC-DC converter; Boost converter; Coupled inductors; Coupling factor; CCM; DCM; Duty cycle;

   Abstract : 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. READ MORE

3. 2. Bi-directional Charging System Design for a set of Li-ion Batteries Located at Angstrom Laboratory Campus of Uppsala University

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Mosab Mohammed; [2023]
   Keywords : Onboard chargers; bidirectional charging system;

   Abstract : In this study, onboard chargers for EVs are investigated and a design of bi-directional onboard chargers is proposed and simulated. The goal of the charger is to be built in the future to be used in the test setup at Uppsala University. READ MORE

4. 3. DC-DC Converter for Fast Charging with Mobile BESS in a Weak Grid : Enabling remote charging and increased efficiency with less resource intensity

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Alexander Medén; [2023]
   Keywords : Battery energy storage systems; Buck-boost; DC DC converter; Dual-active bridge; fast charging; DC charging; Mobile battery systems; Batterienergilagringssystem; Buck-boost; DC DC-omvandlare; Dual-active bridge; snabbladdning; DC-laddning; Mobila batterisystem;

   Abstract : With the increase of electric vehicles (EVs) on the roads the availability of charging infrastructure becomes more important. Today it is relatively straightforward to install fast chargers in areas with strong power grid connections, such as in urban areas. READ MORE

5. 4. Design of radio frequency energy harvesting system : for use in implantable sensors

   University essay from Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

   Author : Amir Ebrahimi; David Kihlberg; [2022]
   Keywords : RF energy harvesting; RF rectifier; efficiency; voltage sensor; voltage doubler;

   Abstract : Implantable biomedical wireless sensors provide monitoring of vital health signs such as oxygen, temperature and intraocular pressure and may help to analyse and detect diseases in humans and animals. However, one of the design challenges of implantable devices is providing a safe and reliable energy source. READ MORE

6. 5. Antenna as a sensor for sensing available LTE networks

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Barath Kumar Sathish Kumar; [2022]
   Keywords : Radio Frequency energy harvesting; Antenna as a sensor; Long-Term Evolution; Rectifier; Printed Circuit Board; Altium Designer; Matching network; Voltage multiplier; Schottky diodes; Multiband LTE antenna; Ambient energy harvesting; Low power Internet of Things; Wireless power transfer; Radiofrekvensenergiskörd; Antenn som sensor; LTE; Likriktare; Printed Circuit Board; Altium Designer; Matchande nätverk; Spänningsmultiplikator; Schottky-dioder; Multiband LTE-antenn; Omgivande energiskörd; Lågeffekt Internet of Things; Trådlös kraftöverföring;

   Abstract : This thesis primarily deals with the concept of designing an antenna based device to harvest energy from Radio Frequency (RF) and using the harvested energy to sense the available Long Term Evolution (LTE) network in order for the Internet of Things (IoT) devices to connect to the network for the purpose of transmitting and receiving data. Secondarily the importance of this project is targeting how to conserve battery power in an IoT device and extend it’s lifetime. READ MORE