Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 100 for “"wireless power"”.
-
Metamaterial Enhanced Wireless Power Transmission System
… the possible benefits of transmitting power wirelessly as early as 1891. Applications for the military, consumers, emergency personnel, remote sensors, and others use Tesla’s discovery of wireless power. Wireless power transmission (WPT) has the potential to be a common source of …
-
Miniaturized, Directional Antennas For Wireless Power Transfer
<p>Today’s age of ever advancing wireless technologies and compact mobile devices has given us the ability to stay connected in all but the remotest places on earth. However, one limiting factor to new wireless technologies has always been the battery. In this thesis the prospect of wireless power …
-
Efficient Magnetic Resonance Wireless Power Transfer Systems
… 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 …
-
Coupled resonator based wireless power transfer for bioelectronics
… increased sophistication i.e. multiple channels, wireless bi-directional communication, and responsiveness (closed-loop devices). One primary challenge in realizing miniaturized and sophisticated bioelectronics is powering. Integration and development of wireless power transfer (WPT) technology, …
-
Fully Integrated Wireless Power Transfer System For Biomedical Applications
Wireless power transfer (WPT) is commonly realized by means of near-field inductive coupling and is critical to many applications. It is highly desirable to fully integrate the receiver coil (Rx) and power shaping circuits on a single chip in a standard CMOS process with no additional …
-
Incorporating Wireless Power Transfer in an LED Lighting Application
… 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 …
-
Energy management in biomedical applications : wireless power and biosensing
Wireless health and fitness devices as well as traditional medical devices such as cardiac and neurological implants, skin patch sensors, and automatic drug delivery pumps extend and improve life by providing therapy, monitoring, and diagnostics. They ensure health and safety while promoting …
-
A self-tuning 100 watt wireless power transfer system
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 recharging of autonomous underwater vehicles or underwater sensor networks. Special attention …
-
Wireless communication system for data transfer and wireless power transmission
Powering wireless communication devices remotely is necessary when a user of the communication device has limited access to battery power or the resources necessary to constantly replace the batteries. This research is focused on remotely charging a communication device by using the power of the …
-
Adaptive primary side control for a wireless power transfer optimization
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 …
-
Wireless power transmission utilizing a phased array of Tesla coils
… how they can be linked in a phased array for the wireless transmission of electrical power. A detailed derivation of their operational theory is presented with a strong emphasis on the current and voltage waveforms produced. Formulas are presented relating the features of the waveforms to specific …
-
Maximizing Flexibility and Efficacy of Undersea Wireless Power Transfer Systems
… way to achieve this is with remote undersea wireless power transfer (WPT) systems to allow AUV charging from remote areas of the ocean floor. While there has been significant research in WPT system design, these projects often tailor the design specifications towards a specific AUV shape, …
-
6.78MHz Omnidirectional Wireless Power Transfer System for Portable Devices Application
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 …
-
Long Range Wireless Power Transfer for Application in Chronic Hydrocephalus Monitoring
Long-range wireless power transfer has the potential to serve as a platform for energising long-term medical implants. Current implementations of wireless power transfer require deliberate patient action to deliver power. Long-range wireless power transfer can supply power reliably and deliver it …
-
Self Capacitance based Wireless Power Transfer for Wearable Electronics: Theory and Implementation
Wireless power transfer (WPT)
-
Hybrid inductive and capacitive wireless power transfer system for future transportation electrification
The inductive link in wireless power transfer (WPT) fed by various high–frequency power converters is widely accepted for medium power (<50 kW) and medium power transfer distance (100 mm-200 mm) applications due to remarkable efficiencies (>90%) in stationary wireless charging scenarios. However, …
-
DESIGN OF DYNAMIC CAPACITIVE WIRELESS POWER TRANSFER SYSTEMS FOR ELECTRIC VEHICLE CHARGING
Dynamic wireless power transfer (WPT) systems can potentially accelerate the penetration of electric vehicles (EVs) in the market by enabling stationary, semi-dynamic, and dynamic charging, thereby reducing EV costs, eliminating charging time, and enabling unlimited range. Furthermore, dynamic WPT …
-
Near-field wireless power transfer to and communication with chip-scale devices
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2019-08-01
-
Single-Stage Wireless Power Transfer System with Single-Switch Secondary Side Modulation
… of output voltage/current is nontrivial in a wireless power transfer (WPT) system. Previously presented methods for regulating or controlling the output of a WPT system include incorporating either post-regulator stage, wireless communication from secondary to primary side, primary side …
-
Design of a Wireless Power Transfer System using Electrically Coupled Loop Antennas
Wireless Power Transfer (WPT) has become quite popular over the recent years. This thesis presents some design challenges while developing a WPT system and describes a system-level methodology for designing an end-to-end system. A critical analysis of contemporary research is performed in the form …
Page 1 of 5