A Self-Oscillating Approach for Wireless Power Transfer

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Journal ISSN
Volume Title
Sähkötekniikan korkeakoulu | Master's thesis
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Author
Date
2018-10-08
Department
Major/Subject
Radio Science and Engineering
Mcode
ELEC3038
Degree programme
NanoRad - Master’s Programme in Nano and Radio Sciences (TS2013)
Language
en
Pages
45
Series
Abstract
We introduce a robust wireless power transfer scheme that theoretically works for any load and receiver position. We show that capacitive wireless power transfer systems with these new properties can be implemented by modifying simple operational Amplifier oscillator circuits. The load and the wireless power link are incorporated into the feedback of the oscillator. The operating frequency adopts to the best possible working condition when the load or receiver position change. We prove the concept by deriving a theoretical model and implementing the same experimentally. The experimentally measured frequency of operation and transferred power agrees well with our analytical solutions.
Description
Supervisor
Tretyakov, Sergei
Thesis advisor
Liu, Fu
Jayathurathnage, Prasad
Keywords
robust wireless power transfer, self oscillations, adaptive tuning, capacitive coupling
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Citation
Permanent link to this item
https://urn.fi/URN:NBN:fi:aalto-201810175460
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[dipl] Sähkötekniikan korkeakoulu / ELEC