Essays about: "chopper"

Showing result 6 - 10 of 15 essays containing the word chopper.

  1. 6. Skörd av rödklöverfrö : hur mycket frö spills vid tröskningen?

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Fredrik Skyggeson; [2015]
    Keywords : rödklöverfrö; förodling; vallfrö; vallfröskörd; gräsfrö; gräsfröskörd; red clover;

    Abstract : Detta examensarbete berör problematiken gällande skörd av rödklöverfrö. Bakgrunden till arbetet är att det 2012 och 2013 gavs indikationer på att svenska rödklöverfröodlare spiller betydande delar av skörden i samband med skörd (25-180 kg/ha). READ MORE

  3. 7. Readout Circuits for a Z-axis Hall Sensor with Sensitivity Drift Calibration

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Jianbo Zhang; [2014]
    Keywords : Hall sensor; CMOS; offset; sensitivity drift; ΣΔ modulator; calibration;

    Abstract : Hall effect magnetic sensors have gradually gained dominance in the market of magnetic sensors during the past decades. The compatibility of Hall sensors with conventional CMOS technologies makes monolithic Hall sensor microsystem possible and economic. READ MORE

  4. 8. Modeling of Resonances in a Converter Module including Characterization of IGBT Parasitics

    University essay from KTH/Elektrisk energiomvandling

    Author : Ensa Sinyan; [2013]
    Keywords : IGBT bus-bars; CST; high frequency modeling; EMC; EMI; parasitic resonances;

    Abstract : Fast switching operations in IGBTs generate electromagnetic field disturbances, which might cause EMI and functionality issues. For higher frequency characterization, the parasitic inductances and capacitances have to be considered. READ MORE

  5. 9. DC Motor Speed Control via Fuzzy / Pole Placement / PI Controller

    University essay from Elektroteknik

    Author : Ali Junaid Ashraf; [2010]
    Keywords : DC motor; Fuzzy Controller; Pole Placement Controller; PID controller; GUI;

    Abstract : This report presents a new way of control engineering. Dc motor speed controlled by three controllers PID, pole placement and Fuzzy controller and discusses the advantages and disadvantages of each controller for different conditions under loaded and unloaded scenarios using software Matlab. READ MORE

  6. 10. Impact of the introduction of wind power on the French transmission gridlay.

    University essay from KTH/Elektriska energisystem

    Author : Vincent Protard; [2009]
    Keywords : ;

    Abstract : During the past years, wind turbine technology has improved and the demand for new installations is increasing. The transmission system operators have looked into different technologies. Three technologies are discussed in this Masters thesis. READ MORE