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Dissertations / Theses on the topic 'Wireless Power Transfer (WPT)'

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Published: 4 June 2021
Last updated: 25 July 2025

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1

Li, Xiaokun. "Wireless Power Transfer Systems for Unmanned Aerial Vehicles." Thesis, Griffith University, 2022. http://hdl.handle.net/10072/413314.

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In recent years,unmanned aerial vehicles (UAVUAVs) have been widely used in various fields of military and civilian, given that they are fast, convenient, discrete and multifunctional. HoweveHowever, the short cruising time limits the development of UAVs due to the lack of UAV batteries At present, UAVs are charged using plug-in AC and DC chargers. This charging manner may cause mechanical wear, joint heating and electric spark. In addition, this manner of charging requires manual operation and cannot work outdoors. Wireless power transfer (WPT) can solve these problems and avoid the loss and
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2

Yring, Malin. "Textile Integrated Induction : Investigation of Textile Inductors for Wireless Power Transfer." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10264.

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This research has its basis in developments within the field of inductive powering and wireless power transfer, WPT, and more specifically one the branch within this field, which is called magnetic resonance coupling. This principle enables efficient power transfer from a transmitting unit to a receiving unit at a distance of some times the unit diameter. The developments within magnetic resonant coupling are together with the possibilities and challenges of today’s smart textile industry the starting point to investigate a novel textile-based product concept for WPT by combining both technolo
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3

Abdelhameed, Mohamed Ahmed Saad. "On-chip adaptive power management for WPT-Enabled IoT." Doctoral thesis, Universitat Politècnica de Catalunya, 2018. http://hdl.handle.net/10803/587158.

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Internet of Things (IoT), as broadband network connecting every physical objects, is becoming more widely available in various industrial, medical, home and automotive applications. In such network, the physical devices, vehicles, medical assistance, and home appliances among others are supposed to be embedded by sensors, actuators, radio frequency (RF) antennas, memory, and microprocessors, such that these devices are able to exchange data and connect with other devices in the network. Among other IoT’s pillars, wireless sensor network (WSN) is one of the main parts comprising massive cluster
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4

Shipley, Jonathan S. "Incorporating Wireless Power Transfer in an LED Lighting Application." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/999.

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There are various situations in which electrical energy is desired but cannot by conveniently supplied. Since the days of Hienrich Hertz and Nikola Tesla, scientists have tried to solve this problem using different methods of wireless power transfer. Today, wireless power transfer has only been commercially demonstrated at small distances through use of induction. This thesis demonstrated the transfer of wireless power at relatively large distances through radio frequencies in the development of a prototype for a commercial product - a wireless household lamp.
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DeLong, Brock J. "Integration of Radio Frequency Harvesting with Low Power Sensors." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu152408949118599.

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6

Forato, Mattia. "Dynamic Wireless Charging of Electric Vehicles." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3425765.

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This thesis deals with the Wireless Power Transfer (WPT) for the dynamic charging of Electric Vehicles (EVs). Dynamic WPT is an emerging technology that can accelerate the transition from conventional to electrical mobility. Dynamic Wireless Power Transfer Systems (WPTSs) exploit the principle of electromagnetic induction to power EVs during their motion without the need for a galvanic contact between the vehicles and a stationary supplying system. Since a portion of the power required by the EVs for the charging and for the propulsion is provided by an external grid, the size of the on-board
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7

COLUSSI, JACOPO. "Design and Experimental Validation of a 100kW Three-PhaseWireless Power Transfer." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2972103.

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Heebl, Jason Daniel. "Development and Characterization of a Tunable Resonant Shielded Loop Wireless Non-Radiative Power Transfer System." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1304426560.

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9

Kamsuvan, Thanisara. "Power management in Wireless Sensor Networks (WSNs)." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/13499.

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The wireless sensor network (WSN) is increasingly used in many areas nowadays. It can be applied to provide the solutions to environmental problems, help increasing security and safety systems, and make the detection of the problems more efficient, e.g. the earthquake or tidal wave, which will harmful to humans. The WNS is durable and resistant to all types of terrain and climate, but while the WSN system is more and more widespread, one of the obstacles hindering the growth of this technology and the demand for WSN applications is the limited battery lifespan. Consequently, there is a signifi
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10

Maschino, Tyler Stephen. "FREQUENCY-SELECTIVE DESIGN OF WIRELESS POWER TRANSFER SYSTEMS FOR CONTROLLED ACCESS APPLICATIONS." Miami University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=miami1461787114.

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11

Moret, Alexandre Hotz. "Estudo e projeto de um sistema de transferência de energia elétrica sem fio com compensação capacitiva e baseado no transformador de bobinas em espirais planas fracamente acopladas." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-05022019-084255/.

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Recentemente os sistemas de transferência de energia sem fio WPT (do inglês Wireless Power Transfer) têm sido amplamente estudados com o propósito de alimentar eficientemente diversos tipos de cargas através de técnicas específicas, dentre elas destaca-se a transferência capacitiva de potência CPT (do inglês Capacitive Power Transfer) e a transferência indutiva de potência IPT (do inglês Inductive Power Transfer), sendo esta última objeto deste estudo. Em um sistema de transferência indutiva de potência a carga é alimentada através de um transformador fracamente acoplado. Em função do elevado
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12

Panchal, Chirag. "Investigations of High Efficiency Wireless Power Transfer Systems (WPTS) for Electric Vehicles (EVs)." Thesis, Griffith University, 2018. http://hdl.handle.net/10072/380677.

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Over the last decade, fossil fuel prices have significantly increased due to the dependency on hydrocarbon energy sources for transportation and electricity generation. In order to solve power generation issues, most governments in the world have heavily promoted the installation of roof top solar photovoltaic (PV) in domestic low voltage and commercial high voltage distribution networks. In addition, Electric Vehicles (EVs) have been introduced to substitute the hydrocarbon fuelled transportation which is required to provide high mileage and affordable prices. Currently, EVs have been charged
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13

Aldrovandi, Ariele. "Design of a highly-efficient multi-frequency system for power and information transmission deploying a resonant coupling mechanism." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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This thesis discusses an application of Wireless Power Transfer: it describes the design of planar coils for power and communication transmission between a BTM and an Eurobalise in a train traffic monitoring environment.
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14

García-Moreno, Aracelys. "Construction of injectable wireless microstimulators based on rectification of volume conducted high frequency currents." Doctoral thesis, Universitat Pompeu Fabra, 2022. http://hdl.handle.net/10803/673986.

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Functional neuromuscular stimulation (FNS) refers to the delivery of electrical stimuli to nerves or muscles to enhance, modify or restore motor functions. Despite their invasiveness, implantable systems for FNS offer key advantages over surface and percutaneous systems in terms of selectivity and safety. Most implantable FNS systems consist of a relatively bulky subcutaneous pulse genera-tor connected through leads to electrodes at the target stimulation sites. In the case of FNS systems for restoring motor functions in patients with paralysis, the leads are long and the electrodes are
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15

Rivière, Jérôme. "Conception et réalisation de rectenna en technologie guide d'onde coplanaire pour de faibles niveaux de puissance." Thesis, La Réunion, 2016. http://www.theses.fr/2016LARE0023/document.

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Le sujet de thèse abordé dans ce mémoire s'inscrit dans la thématique du LE²P sur l'autonomie énergétique des réseaux de capteurs. Ce travail est axé sur la partie réception et redressement du transfert de l'énergie sans fil pour l'apport d'énergie à des capteurs nomades. Ce procédé n'est pas nouveau et prend son origine dans les années 1950. Les connaissances dans l'appréhension de ce processus sont nombreuses pour certains guides d'onde tels que le microruban. Mais la nécessité de perçages dans ces structures de guide d'onde peut être contraignante et causer des disparités dans une chaîne de
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16

Kamotesov, Sergkei. "Transmission d’énergie par induction électromagnétique en plastronique 3D." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSE1353.

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L’objectif de la thèse est d’évaluer l’intérêt de la plastronique 3D dans le domaine de la transmission d’énergie à distance par induction électromagnétique (TEDIM). En effet, la TEDIM est actuellement basée sur des inductances planes, qui n’autorisent un transfert d’énergie entre émetteur et récepteur que sur une courte à moyenne distance, à condition de plus qu’elles soient alignées. Dans ce manuscrit est étudié le cas particulier de récepteurs de forme 3D disposés à l’intérieur d’une boite émettrice de 50 cm de côté comportant 4 inductances émettrices. Différents récepteurs avec des inducta
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17

Kanoun, Mariem. "Contribution à l'étude et à la conception d'un système de transfert et de récupération d'énergie électromagnétique à 5.8 GHZ." Thesis, Poitiers, 2019. http://www.theses.fr/2019POIT2310.

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Le travail présenté dans ce mémoire de thèse s’inscrit dans le cadre de la réalisation d’un système de transfert et de récupération d’énergie électromagnétique (EM) pour l’approvisionnement en énergie d’un Réseaux de Capteurs Sans Fil (RCSF). Ce système repose sur le principe de la formation de faisceaux appelée « Beamforming » afin de pointer le faisceau de l’onde EM dans la direction du nœud capteur à recharger. Dans la première partie de ce travail, la conception et l’implémentation d’un déphaseur actif à la fréquence de 5,8 GHz, totalement intégré en technologie BiCMOS SiGe:C 0,25 µm, pour
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18

Singh, Aseem Bilén Sven G. "Wireless power transfer for wireless sensor modules." [University Park, Pa.] : Pennsylvania State University, 2009. http://etda.libraries.psu.edu/theses/approved/WorldWideIndex/ETD-3952/index.html.

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19

Al, Mahmud Shamsul Arefeen. "Wireless Power Transfer : Machine Learning Assisted Characteristics Prediction for Effective Wireless Power Transfer Systems." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-286673.

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One of the main challenges in wireless power transfer (WPT) devices is performance degradation when the receiver’s position and characteristics vary. The variations in the system parameters such as load impedance and coupling strength in WPT devices affect performance characteristics such as output voltage and power. When the system parameters are different from the optimal operating conditions, the performances are degraded. Therefore, the load impedance and coupling strength must be monitored to do the necessary optimization and control. However, such control approaches require additional se
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20

Moffatt, Robert Alexander. "Wireless transfer of electric power." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/51595.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Physics, 2009.<br>Includes bibliographical references (leaf 49).<br>In this dissertation, I describe the design and construction of a system which can transfer electric power wirelessly. This is accomplished using inductive, near-field, non-radiative coupling between self-resonant copper helices. In our first experiment, we transfered 60W of power over a distance of 2m with 45% efficiency. In our second experiment, we designed a system which can transfer power from a single source to two devices, each 2m away, with 60% total effici
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21

Gardner, Trevor. "Wireless Power Transfer Roadway Integration." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6866.

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Electric vehicles represent a major accomplishment in the energy and transportation industry. Unfortunately, they are restricted to a small travel range because of limited battery life. Successful integration of wireless power transfer (WPT) systems into the infrastructure would remove the range restrictions of EVs. To successfully integrate this technology, several requirements must be met. First, the embedment process cannot interfere with the electrical performance of the inductive power transfer (IPT) system. Second, the presence of the IPT system in the pavement structure cannot negativel
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22

Bou, Balust Elisenda. "Wireless power transfer : fueling the dots." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/456820.

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Resonant Inductive Coupling Wireless Power Transfer (RIC-WPT) has been proven to provide very high power transfer efficiencies (above 80%) for moderate distances, and is hence foreseen as a key technology to enable wireless power transfer to a myriad of different devices and related applications. Due to the multidisciplinary nature of the WPT underlying principles, several approaches have been provided to analyze RIC-WPT systems from different perspectives (encompassing Electromagnetic fields, Circuit models and Optics), but they have failed to provide a unified model to understand and ultimat
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23

Djurberg, Axel, Fredrik Forsberg, Anton Lind, and Ludvig Snihs. "Wireless Power Transfer in Cavity Resonator." Thesis, Uppsala universitet, Fasta tillståndets elektronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444250.

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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. A data logger was also built, this to be able to read and log the power within the cavity to examine its power distribution. Because of COVID-19 restrictions, access to laboratory and equipment was limited. Due to this, smaller experiments where performed to make sure that all par
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24

Mude, Kishore Naik. "Wireless power transfer for electric vehicle." Doctoral thesis, Università degli studi di Padova, 2015. http://hdl.handle.net/11577/3424096.

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Wireless Power Transfer (WPT) systems transfer electric energy from a source to a load without any wired connection. WPTs are attractive for many industrial applications because of their advantages compared to the wired counterpart, such as no exposed wires, ease of charging, and fearless transmission of power in adverse environmental conditions. Adoption of WPTs to charge the on-board batteries of an electric vehicle (EV) has got attention from some companies, and efforts are being made for development and improvement of the various associated topologies. WPT is achieved through the affordabl
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25

Wang, Rui. "Distributed Cooperative Communications and Wireless Power Transfer." Digital WPI, 2018. https://digitalcommons.wpi.edu/etd-dissertations/62.

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In telecommunications, distributed cooperative communications refer to techniques which allow different users in a wireless network to share or combine their information in order to increase diversity gain or power gain. Unlike conventional point-to-point communications maximizing the performance of the individual link, distributed cooperative communications enable multiple users to collaborate with each other to achieve an overall improvement in performance, e.g., improved range and data rates. The first part of this dissertation focuses the problem of jointly decoding
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26

Thabet, Thabat. "Efficient magnetic resonance wireless power transfer systems." Thesis, University of Essex, 2018. http://repository.essex.ac.uk/22980/.

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This thesis aims to improve the performance of magnetic resonance wireless power transfer systems. Different factors have different effects on the performance and the efficiency of the maximum transfer of power in the system. These factors are: the resonance frequency; the quality factor of the resonators; the value and shape of the coils; the mutual inductance, including the distance between the coils; and the load. These systems have four potential types of connection in the transmitter and receiver. These types are Serial to Serial (SS), Serial to Parallel (SP), Parallel to Serial (PS) and
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Jha, Rupesh Kumar. "Power Stages and Control of Wireless Power Transfer Systems (WPTSs)." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3424780.

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Wireless charging of electric vehicle (EV) batteries by inductive power transfer (IPT) offers unique advantages compared to conventional conductive chargers. Due to the absence of a galvanic connection, the charging process requires no user interaction and no moving of mechanical components. For public transport systems, e.g., public buses or tramways, this makes possible a fully automated opportunity charging at bus stations, taxicab stands, or traffic lights. The schematic of wireless battery charger (WBC) is made of two stages, one is transmitter stage and another one is receiver stage. Bot
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28

Lawson, James. "High frequency electromagnetic links for wireless power transfer." Thesis, Imperial College London, 2017. http://hdl.handle.net/10044/1/54841.

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This thesis investigates inductive links used in wireless power transfer systems. Inductive power transfer can be used as a power delivery method for a variety of portable devices, from medical implants to electric vehicles and is gaining increased interest. The focus is on high quality factor coils and MHz operation, where accurate measurements are difficult to achieve. Fast models of all pertinent aspects of inductive power transfer systems for constant cross section coils are developed. These models are used to optimise a new coil winding pattern that aims to increase efficiency in volume c
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29

Mou, Xiaolin. "Wireless power transfer technology for electric vehicle charging." Thesis, Durham University, 2017. http://etheses.dur.ac.uk/12416/.

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In the years 1884-1889, after Nicola Tesla invented "Tesla Coil", wireless power transfer (WPT) technology is in front of the world. WPT technologies can be categorized into three groups: inductive based WPT, magnetic resonate coupling (MRC) based WPT and electromagnetic radiation based WPT. MRC-WPT is advantageous with respect to its high safety and long transmission distance. Thus it plays an important role in the design of wireless electric vehicle (EV) charging systems. The most significant drawback of all WPT systems is the low efficiency of the energy transferred. Most losses happen duri
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30

Carlsson, Simon. "Wireless Power and Data Transfer in Industrial Nutrunners." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279965.

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Wireless power and data transfer systems are experiencing an ever-growing consumer and industrial adoption. Its use in common devices has made the technology more accessible to people, but seldomly does it replace a physical connection inside a product. When two parts of an assembly are to be electrically connected, the solution has traditionally been connectors or wires. However, typical connection methods using physical connectors between two devices can be fragile and sensitive to dust and debris. In this degree project, a wireless power and data connection between two parts of an industria
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31

Fan, Philex Ming-Yan. "Power management and power conditioning integrated circuits for near-field wireless power transfer." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/290143.

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Near-field wireless power transfer (WPT) technology facilitates the energy autonomy of heterogeneous systems, significantly augmenting complementary metal-oxide-semiconductor field-effect-transistor (CMOS) technology. In low-power wearable devices, existing power conditioning integrated circuits do not maximize the power factor (PF) for rectification and power conversion efficiency (PCE) due to multiple conversion. Additionally, there is no core power management for the entire power flow. The majority of the research focuses on active rectifiers, which reduce the turn-on voltage for rectificat
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Zhao, Rui. "Double resonant high-frequency converters for wireless power transfer." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/22958/.

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This thesis describes novel techniques and developments in the design and implementation of a low power radio frequency (40kHz to 1MHz) wireless power transfer (WPT) system, with an application in the wireless charging of autonomous drones without physical connection to its on-board Battery Management System (BMS). The WPT system is developed around a matrix converter exploiting the benefits such as a small footprint (DC-link free), high efficiency and high power density. The overall WPT system topology discussed in this thesis is based on the current state-of-the-art found in literature, but
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33

Lukashov, Stanislav V. "A self-tuning 100 watt wireless power transfer system." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113128.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 81-83).<br>This thesis presents a new method of controlling wireless power transfer suitable for highly resonant magnetically coupled systems. An application of this system is unattended autonomous operation such as rechargi
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34

Reed, Ryan Tyler. "Wireless Information and Power Transfer Methods for IoT Applications." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/104146.

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As Internet of Things (IoT) technology continues to become more commonplace, demand for self-sustainable and low-power networking schemes has increased. Future IoT devices will require a ubiquitous energy source and will need to be capable of low power communication. RF energy can be harvested through ambient or dedicated RF sources to satisfy this energy demand. In addition, these RF signals can be modified to convey information. This thesis surveys a variety of RF energy harvesting methods. A new low complexity energy harvesting system (circuit and antenna) is proposed. Low power communicati
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Boaventura, Alírio de Jesus Soares. "Efficient wireless power transfer and radio frequency identification systems." Doctoral thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/17374.

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Doutoramento em Engenharia Eletrotécnica<br>In the IoT context, where billions of connected objects are expected to be ubiquitously deployed worldwide, the frequent battery maintenance of ubiquitous wireless nodes is undesirable or even impossible. In these scenarios, passive-backscatter radios will certainly play a crucial role due to their low cost, low complexity and battery-free operation. However, as passive-backscatter devices are chiefly limited by the WPT link, its efficiency optimization has been a major research concern over the years, gaining even more emphasis in the IoT context.
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Iyiola, Samuel Oluwagbemi. "Moteino-Based Wireless Data Transfer for Environmental Monitoring." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc984271/.

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Data acquisition through wireless sensor networks (WSNs) has enormous potential for scalable, distributed, real-time observations of monitored environmental parameters. Despite increasing versatility and functionalities, one critical factor that affects the operation of WSNs is limited power. WSN sensor nodes are usually battery powered, and therefore the long-term operation of the WSN greatly depends on battery capacity and the node's power consumption rate. This thesis focuses on WSN node design to reduce power consumption in order to achieve sustainable power supply. For this purpose, this
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37

Suárez, Sandoval Fralett [Verfasser]. "Efficient wireless power transfer with magnetoinductive waves / Fralett Suárez Sandoval." Aachen : Shaker, 2018. http://d-nb.info/1188548891/34.

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Bogoda, Thilani Imanthika Dissanayake. "Adaptive primary side control for a wireless power transfer optimization." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/76908.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>A resonant inductive wireless power transfer system, consisting of a primary (transmitter) circuit and secondary (receiver) circuit, was designed and implemented. This document also contains a novel indirect feedback method to optimize the power efficiency of a wireless transfer system. The indirect feedback method presented allows the primary circuit to adapt its power delivery to the power requ
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Wang, Ce. "Study on Novel Rectifiers for Microwave Wireless Power Transfer System." Kyoto University, 2020. http://hdl.handle.net/2433/253503.

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Feng, Junjie. "6.78MHz Omnidirectional Wireless Power Transfer System for Portable Devices Application." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/101839.

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Wireless power transfer (WPT) with loosely coupled coils is a promising solution to deliver power to a battery in a variety of applications. Due to its convenience, wireless power transfer technology has become popular in consumer electronics. Thus far, the majority of the coupled coils in these systems are planar structure, and the magnetic field induced by the transmitter coil is in one direction, meaning that the energy power transfer capability degrades greatly when there is some angle misalignment between the coupled coils. To improve the charging flexibility, a three–dimensional (3D) coi
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Suri, Ramaa Saket. "Design of Voltage Boosting Rectifiers for Wireless Power Transfer Systems." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1505212/.

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This thesis presents a multi-stage rectifier for wireless power transfer in biomedical implant systems. The rectifier is built using Schottky diodes. The design has been simulated in 0.5µm and 130nm CMOS processes. The challenges for a rectifier in a wireless power transfer systems are observed to be the efficiency, output voltage yield, operating frequency range and the minimum input voltage the rectifier can convert. The rectifier outperformed the contemporary works in the mentioned criteria.
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Satel, Abdallah Toni. "Wireless Charger for Low Power Devices." Master's thesis, 2016. http://hdl.handle.net/10316/81646.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Wireless power transfer technology has been widely used in many areas. This thesis implements a wireless charging system for consumer electronics for mobile applications such as laptops and tablets. The working on a wireless power transfer system is comparable to that of an air core transformer with the leakage compensated by means of capacitances. Compensation has been applied to both the primary and secondary of the transformer. This would help boost power tran
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Mendes, André Pereira. "Wireless power transfer system for continuous charging of electric vehicles." Master's thesis, 2017. http://hdl.handle.net/10316/83318.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>O veículo de combustão interna é, ainda hoje, a opção preferida na mobilidade automóvel. No entanto, com os crescentes incentivos à redução do uso dos combustíveis fósseis e a aposta em energias renováveis, levaram ao aparecimento de outros tipos de veículos. Nesse sentido, o veículo eléctrico (VE) apresenta-se como uma alternativa viável que combina alto rendimento e boa performance. A energia armazenada nas baterias é necessária para o funcionamento do VE e pre
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Jun, Bong Wan. "An investigation on transmitter and receiver diversity for wireless power transfer." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-05-3272.

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This thesis investigates near-field wireless power transfer using multiple transmitters or multiple receivers. First, transmitter diversity is investigated in terms of the power transfer efficiency (PTE). It is found that an improvement in the PTE can be achieved by increasing the number of transmitters. Furthermore, a region of constant PTE can be created with the proper arrangement of transmitters. Next, receiver diversity is investigated in detail. An improvement in the PTE can be also achieved by increasing the number of receivers. However, it is shown that when two or more receivers are c
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(8052236), Brian J. Vaughn. "WIRELESS POWER TRANSFER USING OPEN-WIRE TRANSMISSION LINE COUPLING." Thesis, 2021.

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<div> <div> <div> <div> <p>This dissertation presents and develops a novel method of wireless power transfer that relies on electromagnetic coupling from open-wire transmission lines instead of tra- ditional methods. Wireless power transfer techniques are being rapidly pursued in re- search currently due to the potential utility of powering devices over the air instead of with direct electrical connections. Uses for such techniques include an array of ap- plications from consumer electronics, to medical devices, to cars and UAVs. While con- ventional wireless power transfer techniques exist, i
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(10716051), Tomohiro Arakawa. "Wireless Powered Communication over Inductively Coupled Circuits." Thesis, 2021.

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Wireless powered communication (WPC) is an emerging paradigm where wireless devices are powered over the air while exchanging information with them. This technology is attractive for various wireless applications, including classical radio-frequency identification (RFID) systems, implantable sensors, environmental sensing as found in agriculture and forestry, and simultaneous charging and telemetry communications for electric vehicles. While recent studies have shown that inductive coupling provides a more energy-efficient and robust channel for short and middle-range wireless transmission, mo
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Ye, Chen. "USV charging based on WPT system." Master's thesis, 2020. http://hdl.handle.net/10071/21904.

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With the increasing demand of water and underwater exploration, more and more electric unmanned surface vehicles (USV) are put into use in recent years. However, because of the present battery technology limits, these devices require to be recharged frequently that is a challenging problem taking into account the complex water environment where these equipments are acting. To improve safety and convenience of USV charging a wireless power transfer (WPT) system is proposed in this dissertation. In this case, the boat can be controlled to go to the charging facilities. During charging by
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(10292552), Omar Nabeel Nezamuddin. "Proposal of wireless charging method and architecture to increase range in electric vehicles." Thesis, 2021.

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<div>Electric vehicles (EVs) face a major issue before becoming the norm of society, that is, their lack of range when it comes to long trips. Fast charging stations are a good step forward to help make it simpler for EVs, but it is still not as convenient when compared to vehicles with an internal combustion engine (ICE). Plenty of infrastructure changes have been proposed in the literature attempting to tackle this issue, but they typically tend to be either an expensive solution or a difficult practical implementation.</div><div> </div><div> This dissertation presents two solutions to hel
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Mendes, Carlos Miguel Gomes. "Desenvolvimento dos conversores de eletrónica de potência para a interface com a rede elétrica de um sistema de transferência de energia sem fios para mobilidade elétrica." Master's thesis, 2021. http://hdl.handle.net/1822/76872.

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Dissertação de mestrado em Engenharia Eletrónica Industrial e de Computadores<br>A aposta nos veículos elétricos (VEs) tem vindo a aumentar e, como tal, surgem novos desafios a nível da integração da mobilidade elétrica e das redes elétricas. Do ponto de vista da mobilidade elétrica, o tempo de carregamento de um VE e a autonomia continuam a ser os principais inconvenientes associados a estes veículos. Para mitigar estes problemas têm surgido vários sistemas inovadores, nomeadamente: sistemas de carregamento cada vez mais potentes que permitem diminuir o tempo de carregamento; novas tecnologia
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Tiago, Miguel Soares Maranha. "Untethered Batteryfree Biomonitoring Stickers Using Far Field Energy Harvesting." Master's thesis, 2020. http://hdl.handle.net/10316/92137.

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Dissertação de Mestrado Integrado em Engenharia Electrotécnica e de Computadores apresentada à Faculdade de Ciências e Tecnologia<br>Nos últimos anos, os dispositivos bioeletrónicos vestíveis têm suscitado bastante interesse, devido ás suas vastas aplicações, como na internet médica das coisas, na saúde digital, e na hospitalizacao domiciliar. Entre eles, os adesivos eletrónicos flexíveis e elásticos são interessantes, pois podem levar a sistemas ultrafinos, confortáveis, impercetíveis e que se adaptam á pele, que efetuem monitorização a longo prazo do paciente. No entanto, como qualquer outro
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