Sökning: "HALL-sensor"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet HALL-sensor.

  1. 1. Short-circuit current detection in electric vehicles

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Max Torbjörner; [2022]
    Nyckelord :Electric vehicles; Current measurement; Short-circuit; BEV Trucks; BJB;

    Sammanfattning : In recent years the vehicle industries have been making much efforts to reduce the environmentalimpact by switching from the traditional combustion engine to electrification with battery driven electricvehicles. Producing electric trucks requires more batteries and operates at a higher voltage and currentthan commercial electric cars. LÄS MER

  3. 2. Lightweight elevator : A portable elevator capable of climbing rooftops

    Kandidat-uppsats, KTH/Mekatronik

    Författare :Tore Malmström; Carl Göransson; [2021]
    Nyckelord :Mechatronics; elevator; winch; Arduino; DCmotor; Hall sensor; H-bridge; Mekatronik; hiss; vinsch; Arduino; Likstr¨omsmotor; Hall sensor; H-brygga;

    Sammanfattning : The purpose of this project is to design and construct a portable lightweight elevator for transportation of goods to rooftops. The elevator should be easy to transport, assemble and disassemble, it should also be useful at various heights and for a wide range of roof inclinations. LÄS MER

  4. 3. Combined RCD, power manager and phase-switcher for electric vehicles charging, controlled by an FPGA

    Master-uppsats, Linköpings universitet/Fysik och elektroteknik; Linköpings universitet/Tekniska högskolan

    Författare :Daniel Hedberg; Erik Wetterin; [2016]
    Nyckelord :;

    Sammanfattning : This master thesis investigates the subsystems required to create a combined residual-current device, power manager and phase-switcher for electric vehicles charging, controlled by an FPGA. The purpose of this task is to create a prototype design for Chargestorm, a company that manufacture charging stations for electrical vehicles and provides a portal for payment. LÄS MER

  5. 4. Evaluation of Hall-sensors for motor control in high precision applications for aircraft

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Oscar Forsberg; [2016]
    Nyckelord :Hall-effect sensor; motor control; electrical motor; PMSM;

    Sammanfattning : A functioning prototype test motor with Hall-sensor feedback has been built, and the test results show that the motor performance in terms of speed ripple is well within the specified demands. The temperature demands however, have not been fully met. LÄS MER

  7. 5. Characterization of a Zeeman Slower Designed for a 87 Sr Optical Clock

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Synkrotronljusfysik

    Författare :Jonas Olsson; [2015]
    Nyckelord :metrology; time; frequency; atomic clock; optical clock; strontium; frequency comb; zeeman slower; arduino; Physics and Astronomy;

    Sammanfattning : Optical clocks will potentially become the new frequency standard for the SI-definition of the second. Many national metrology institutes around the world have already implemented different versions of such clocks and others are in process of doing so. At SP Technical Research Institute of Sweden, this process has recently begun. LÄS MER