Sökning: "voltage scaling"

Visar resultat 1 - 5 av 48 uppsatser innehållade orden voltage scaling.

  1. 1. Small-scale wave energy converter for wave tank facility

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Samir Asseh; [2023]
    Nyckelord :Wave power; small-scale; Wave tank; facility; Renewable resources; damping; froude scaling; magnets; copper coil; Uppsala University; buoy; MATLAB; COMSOL; PTO; WEC; Electricicity generation.; Förnybar energi; Vågtank; Vågkraft;

    Sammanfattning : A small-scale wave energy converter was designed and built for teaching and academic purposes to be used at The Division for Electricity, in the Ångström Laboratory at Uppsala University. The design of the power take-off (PTO) makes use of magnets passing through a copper coil for electricity generation. LÄS MER

  3. 2. Using Approximate Computing Circuits to Optimize Power of an ASIC

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Padmashree Nuggehalli Srinivasa; Shi-Tien Hsing; [2023]
    Nyckelord :ASIC; Power; Optimization; Approximate Arithmetic Circuits; Approximate Computing; Technology; Technology and Engineering;

    Sammanfattning : The growing demand for network cameras to support real-time image processing and machine-learning applications has created a need for low-power solutions. Although technology scaling makes complex computations feasible, voltage scaling is limited, leading to higher power density and dark silicon problems. LÄS MER

  4. 3. Optimizing Energy Consumption in a Real-Time System Using Artificial Intelligence

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Caroline Lisa Pereira; [2023]
    Nyckelord :;

    Sammanfattning : In energy-efficient real-time embedded system design, the objective is to reduce energy consumption while meeting the tasks' timing requirements. Real-time Dynamic Voltage and Frequency Scaling (DVFS) methods aim at achieving this by scaling the frequency at which a single processor or multiple processors in the system operate, but they often assume that the tasks' deadlines are known and their arrival times are regular. LÄS MER

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

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

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

    Sammanfattning : 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. LÄS MER

  7. 5. Lithium-ion battery modeling and SoC estimation

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

    Författare :Ruoyu Xu; [2023]
    Nyckelord :lithium-ion battery; cell modeling; state of charge; extended Kalman filter; pack modeling; litiumjonbatteri; cellmodellering; laddningstillstånd; utökat Kalmanfilter; packmodellering;

    Sammanfattning : The energy crisis and environmental pollution have become increasingly prominent in recent years. Lithium batteries have attracted extensive attention due to their high energy density, safety, and low pollution. To further study how the battery works, it is necessary to establish an accurate model conforming to the battery characteristics. LÄS MER