Essays about: "Wireless charging"

Showing result 6 - 10 of 30 essays containing the words Wireless charging.

  1. 6. Design and construction of a reliable wireless power transfer system for an embedded device : With emphasis on industrial applications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Dhruvi Ajit Shukla; [2022]
    Keywords : Wireless Power Transfer WPT ; ferrites; Litz wire; skin effect; proximity effect; electromagnetic induction; electromagnetic resonance; magnetic coupling; power efficiency; LC circuits; Trådlös kraftöverföring WPT ; ferrit; litz-tråd; hudeffekt; närhetseffekt; elektromagnetisk induktion; elektromagnetisk resonans; magnetisk koppling; effekteffektivitet; LC-kretsar;

    Abstract : This thesis deals with wireless power transfer from an external source to embedded small devices (such as for conditioning monitoring, control etc.) located at different distances from the source. The proposed designs can be used in a variety of applications, including mobile phones, electric cars, unmanned aerial vehicles, robots, etc. READ MORE

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

    University essay from Linköpings universitet/Elektroniska Kretsar och System; Linköpings universitet/Tekniska fakulteten

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

    Abstract : 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. READ MORE

  4. 8. Combining energy harvesting sources for increased system availability and using an input switching algorithm to maximise battery lifetime

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Anton Hylander; [2022]
    Keywords : ;

    Abstract : Energy harvesting is commonly used for powering low power electronics, for example Low Power Wide Area Networks (LPWAN). Many energy sources are natural (e.g. solar or wind), thus the harvested power can depend on weather, time of day, and time of year. READ MORE

  5. 9. Evaluation of Discrete-Time Wideband Receivers for NB-IoT

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Magnus Wasting; [2021]
    Keywords : Discrete; time; filter; NB-IoT; Charge; Sharing; CMOS; Technology and Engineering;

    Abstract : A receiver that covers several RF bands requires multiple front-end filters which increases the cost in terms of components and/or board/silicon area. Front-end filters assist a receiver to withstand interference at multiples of its down-conversion frequency. READ MORE

  6. 10. Wireless Power Transfer in Cavity Resonator

    University essay from Uppsala universitet/Fasta tillståndets elektronik

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

    Abstract : 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. READ MORE