Sökning: "AC-DC Converter"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden AC-DC Converter.

  1. 1. Design of radio frequency energy harvesting system : for use in implantable sensors

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

    Författare :Amir Ebrahimi; David Kihlberg; [2022]
    Nyckelord :RF energy harvesting; RF rectifier; efficiency; voltage sensor; voltage doubler;

    Sammanfattning : Implantable biomedical wireless sensors provide monitoring of vital health signs such as oxygen, temperature and intraocular pressure and may help to analyse and detect diseases in humans and animals. However, one of the design challenges of implantable devices is providing a safe and reliable energy source. LÄS MER

  3. 2. Commissioning and Testing of a Novel Buck-Boost Phase-Modular Three-Phase AC/DC Converter with Low Component Number

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

    Författare :Saransh Chhawchharia; [2022]
    Nyckelord :;

    Sammanfattning : In this thesis, a 1kW hardware prototype of a three-phase inverting buck-boost converter, termed as 6 Switch Buck-Boost Y-Inverter (6YI) is commissioned and tested. The 6YI is designed to be used as a motor drive for renewable energy applications such as fuel cell, solar etc powered motor drives with wide input voltage capability. LÄS MER

  4. 3. Design of a Future Residential Hybrid Microgrid

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

    Författare :Ahmad Talaat Hifzy; Wilhelm Westermark; [2021]
    Nyckelord :Energy management; grid control; grid operation; hybrid microgrid; PV system; MPPT; BESS; DER; BIC;

    Sammanfattning : As we are moving towards a future carbon-neutralsociety, development of residential microgrids attracts much attentionaround the world with its efficient utilization of renewableenergy. A residential microgrid is a small power system fora house, which consists of a solar photovoltaic (PV) source,a battery storage, residential loads, and an interface to thegrid. LÄS MER

  5. 4. 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. 5. Sensor based measurements of a single phase AC/DC converter to estimate lifetime

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

    Författare :Arasto Shams; [2020]
    Nyckelord :;

    Sammanfattning : Maintenance of power electronic systems is of interest for larger systemsentirety. The reason is that they in turn could affect the whole system and cause failures if they are not functional. Maintenance of systems that are critical to be functional at all times is an area of research that is developing. LÄS MER