Essays about: "voltage variation"

Showing result 1 - 5 of 39 essays containing the words voltage variation.

  1. 1. Parallel Operation of Grid-Forming Power Inverters

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

    Author : Alessia Camboni; [2023]
    Keywords : ;

    Abstract : The use of renewable energy sources has been increasing during the last few years, both to obtain a less impacting energy production, and because of the limited fossil resources. Renewable sources are connected to the grid using inverters, which can be controlled in two main modes, grid-following, and grid-forming. READ MORE

  3. 2. Electrolytic Reduction of Iron Oxides in Molten Salt with a Mineralogical Investigation of Magnetite Ore of Tapuli

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Elina Fernö; [2023]
    Keywords : Iron reduction; trace element analysis on magnetite ore; molten salt electrolysis; sodium hydroxide electrolyte; NaOH; greenhouse gas; carbon dioxide; CO2; green ironmaking; Järnreduktion; spårelementanalys på magnetitmalm; smältelektrolys; elektrolys i natriumhydroxid; NaOH; elektrolyt; växthusgas; koldioxid; CO2; grön järnframställning;

    Abstract : This master's thesis covers an investigation of the reduction behavior of different iron oxides when electrolytically reduced with molten salt electrolysis (MSE). The tested iron oxides were wüstite (FeO), hematite (Fe2O3), magnetite (Fe3O4) and magnetite ore concentrate from the Tapuli deposit in Pajala, Norrbotten, Sweden. READ MORE

  4. 3. Gate Drive Design for SiC MOSFET Device Characterization : Investigation into the impact of the gate inductance and resistance on the switching behaviour of SiC Power MOSFETs

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

    Author : Elochukwu Mbah; [2023]
    Keywords : Silicon Carbide Power MOSFET; Gate Inductance; Gate Resistance; Miller Period; dv dt and di dt transients; Double Pulse Test; Kiselkarbid Power MOSFET; Gateinduktans; Gate Resistance; Millerperioden; dv dt och di dt transienter; Dubbelpulstest.;

    Abstract : Silicon Carbide as a wide-bandgap semiconductor has several physical and electrical advantages over Silicon for high voltage and high frequency applications. SiC as a MOSFET device has a lot of great characteristics like lower on-resistance and low input capacitances. READ MORE

  5. 4. Current-Mode Class D Power Amplifier for 2.4GHz Wi-Fi

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

    Author : Yann Jean Michael Pirot; [2023]
    Keywords : Power Amplifier; Wifi; Digital Power Amplfier; Class D; RFIC; Analogue; Effektförstärkare; Wifi; digital förstärkare; klass D; analog;

    Abstract : Modern wireless communication techniques employed in the Wi-Fi® protocol, such as orthogonal frequency-division multiplexing exhibit analogue signals with high peak-to-average power ratio. Therefore, power amplifiers for Wi-Fi suffer from low efficiency when operating in back-off mode, away from their maximum efficiency at peak power. READ MORE

  6. 5. A Simulation Study of Variability in Gate-all-Around Nanosheet Transistors

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

    Author : Virinchi Tirumaladass; [2022]
    Keywords : Gate-all-around; Nanosheet field effect transistors; process variations; variability; TCAD; Gate-all-around; Nanoblad fälteffekttransistorer; processvariationer; variabilitet; TCAD;

    Abstract : Gate-all-around (GAA) nanosheet field effect transistors (NSFETs) seem to be one of the most promising replacement options for FinFETs towards scaling down below to the sub-7nm technology nodes. They offer better electrostatics and control of short channel effects (SCEs) due to their superior control over the channel and their large effective channel width. READ MORE