Sökning: "Rectifier"

Visar resultat 6 - 10 av 44 uppsatser innehållade ordet Rectifier.

  1. 6. Wireless Power Transfer in Cavity Resonator

    Kandidat-uppsats, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Axel Djurberg; Fredrik Forsberg; Anton Lind; Ludvig Snihs; [2021]
    Nyckelord :cavity; resonator; radio frequency; wireless power transfer;

    Sammanfattning : The purpose of this paper is to achieve wireless power transfer inside a resonating cavity, and thereby apply this to charge batteries. The idea is to convert radio frequency waves into direct current, which can charge the batteries. This was done by creating an LC-antenna, which in turn was connected to a rectifier. LÄS MER

  3. 7. 83% Efficient ASIC Wireless Power Transfer from NFC for Implantable Sensors

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Samir Sabah; [2020]
    Nyckelord :NFC; Wireless power transfer; Rectifier; Electrical stimulation; Nerve regeneration; Bioelectronics.;

    Sammanfattning : In the past decades, there has been a noticeable growth in the deployment of wireless sensor networks. These sensors/stimulators are typically powered by a battery which has limited life span. Power harvesting is one of the solutions to this problem. LÄS MER

  4. 8. Analysis Of A Wave Power System With Passive And Active Rectification

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Ferdus Wahid; [2020]
    Nyckelord :WEC; Optimal damping coefficient; Power smoothing; Passive rectifier; Active rectifier; Buck converter; Bi-directional DC-DC converter; Flywheel; Battery; Bi-directional voltage source converter; Voltage source inverter;

    Sammanfattning : Wave energy converter (WEC) harnesses energy from the ocean to produce electrical power. The electrical power produced by the WEC is fluctuating and is not maximized as well, due to the varying ocean conditions. As a consequence, without any intermediate power conversion stage, the output power from the WEC can not be fed into the grid. LÄS MER

  5. 9. Isolated Single-Stage Interleave Resonant PFC Rectifier with Active and Novel Passive Output Ripple Cancellation Circuit

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Abidemi Oluremilekun Eleyele; [2020]
    Nyckelord :single-stage AC DC converter; bridgeless power factor correction PFC rectifier; active passive ripple cancellation; zero current switching ZCS ; zero voltage switching ZVS ; Electric vehicle EV charger; LLC;

    Sammanfattning : With the increasing demand for fast, cheaper, and efficient power converters come the need for a single-stage power factor correction (PFC) converter. Various single-stage PFC converter proposed in the literature has the drawback of high DC bus voltage at the input side and together with the shift to wide bandgap switches like GaN drives the converter cost higher. LÄS MER

  7. 10. Övertoner från UPS i transformator : Lokalisering och möjliga lösningar

    M1-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Adam Bratt; José Luis Jimenez Hernekoski; [2020]
    Nyckelord :Övertoner; elkvalité; transformator; UPS;

    Sammanfattning : Avsikten med rapporten är att kartlägga och analysera förekommande övertoner i anslutning till en utav AstraZenecas Uninteruptible Power Supply (UPS) anläggningar. Samt ge en generell inblick på övertoner och dess karaktäristik i form av konsekvenser och lösningar. LÄS MER