Sökning: "H-bridge"

Visar resultat 11 - 15 av 17 uppsatser innehållade ordet H-bridge.

  1. 11. Development of a Temperature Controlled Cell for Surface Enhanced Raman Spectroscopy for in situ Detection of Gases

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :André Appelblad; [2014]
    Nyckelord :temperature control; Raman scattering; surface enhanced Raman spectroscopy SERS; SERS substrate; volatile substances; Peltier module; thermistor; PWM; H-bridge; PI D control.; temperaturkontroll; ytförstärkt ramanspektroskopi; SERS; flyktiga ämnen; Peltierelement; thermistor; PWM; H-brygga; PI D -regulator.;

    Sammanfattning : This work describes a master’s thesis in engineering physics at Umeå University carried out during the spring semester of 2014. In the thesis the student has constructed and tested a temperature controlled cell for cooling/heating of surface-enhanced-Raman-spectroscopy (SERS) substrates for rapid detection of volatile substances. LÄS MER

  3. 12. Home Automation System : A cheap and open-source alternative to control household appliances

    Kandidat-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Bassam Ruwaida; Toni Minkkinen; [2013]
    Nyckelord :Home Automation System; Raspberry Pi; Android; Door lock; Wireless Communication;

    Sammanfattning : This project revolves around creating a home automation system prototype with the main focus being the ability to lock/unlock a door through the internet. The system consists of a central device, a server and an Android application. LÄS MER

  4. 13. Control Strategy of Cascaded H-Bridge Multilevel Inverter with PV System as Separate DC Source

    Master-uppsats, KTH/Elektrisk energiomvandling

    Författare :Xiaohu Zhang; [2011]
    Nyckelord :;

    Sammanfattning : The integration of solar energy to the power grid is a challenging topic nowadays. Many topologies and control methods have already been proposed. In this thesis, the cascaded H-bridge (CHB) multilevel inverter is adopted for the photovoltaic (PV) energy integration. LÄS MER

  5. 14. Balanserande robot

    M1-uppsats, Institutionen för systemteknik

    Författare :Fredrik Nilsson; [2010]
    Nyckelord :Balanserande robot; digital reglering; PID; H-brygga; PWM; gyro; accelerometer; mikrokontroller.;

    Sammanfattning : Denna rapport behandlar utveckling av en tvåhjulig balanserande robot. En PID-regulator är implementerad i en mikrokontroller, som även AD-omvandlar en sensorsignal, samt styr motorer via H-bryggor med pulsbreddsmodulering. LÄS MER

  7. 15. Wireless Control via Bluetooth

    Master-uppsats, Lunds universitet/Industriell elektroteknik och automation

    Författare :Asta Andresdottir; [2009]
    Nyckelord :Technology and Engineering;

    Sammanfattning : A personal transporter is under development at LTH, Industrial Electrical Engineering and Automation, IEA. A wireless link is desired to develop control remotely for the transporter. The development of the control becomes easier without wires and if the transporter can move freely within the range of the link. LÄS MER