Sökning: "transistor"

Visar resultat 31 - 35 av 196 uppsatser innehållade ordet transistor.

  1. 31. Investigation of Gallium Nitirde High Electron Mobility Transistors

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Shikhar Arvind; [2021]
    Nyckelord :Gallium Nitride; High electron mobility transistor; leakage current; in-situ Silicon Nitride; power electronics;

    Sammanfattning : Gallium Nitride (GaN) based transistors have been in the spotlight for power electronics due to promising properties like high bandgap, high breakdown field, high electron mobility, and high-frequency applications. While there are some commercial devices based on these transistors available, there is still room for improvement in these devices for widespread usage. LÄS MER

  3. 32. Automatic Torque Control for Bicycle Driven Brushless DC (BLDC) Generator

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Luke Müller; Kasper Sjöström; [2021]
    Nyckelord :BLDC; brushless dc generator; brushless dc motor; JFET; Torque; Generator Torque; Automatic Torque Control; Field Effect Transistor; PWM;

    Sammanfattning : This work was carried out on behalf of Science Safari. Science Safari wants to create a product that facilitates the understanding of how much physical work is required to create electrical energy. This is done by cranking the pedals of a bicycle. LÄS MER

  4. 33. Investigations of p-type quantum dots in GaSb nanowires

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :In-Pyo Yeo; [2021]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The purpose of this project is to investigate hole transport in p-type quantum dots formed in GaSb nanowire and operating as single hole transistors. The individual and controlled hole-spin confinement in such system yields a variety of proposed applications for spintronics or quantum computation. LÄS MER

  5. 34. Quantifying nitrogen oxides and ammonia via frequency modulation in gas sensors

    Master-uppsats, Linköpings universitet/Statistik och maskininlärning

    Författare :Marcos Freitas Mourao dos Santos; [2021]
    Nyckelord :Nitrogen oxides; nox; ammonia; sic-fet; PLSR; quantification;

    Sammanfattning : The use of Silicon Carbide Field Effect Transistor (SiC-FET) sensors in cyclic operation is a proven way to quantify different gases. The standard workflow involves extracting shape-defining features such as averages and slopes of the sensor signal. LÄS MER

  7. 35. Investigation and forecasting drift component of a gas sensor

    Master-uppsats, Linköpings universitet/Statistik och maskininlärning

    Författare :Farhana Chowdhury Tondra; [2021]
    Nyckelord :Time series analysis; Forecasting; ARIMA; LSTM; Sensor; SiC-FET; ADF test; Stochastic Trend; Deterministic Trend; Sensor Drift;

    Sammanfattning : Chemical sensor based systems that are used for detection, identification, or quantification of various gases are very complex in nature. Sensor response data collected as a multivariate time series signals encounters gradual change of the sensor characteristics(known as sensor drift) due to several reasons. LÄS MER