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 19 of 19 for “"Power transfer efficiency"”.
-
A Hybrid Switched-Capacitor Converter for Capacitive Wireless Power Transfer in Biomedical Applications
… pulse generators, use inductive wireless power transfer (I-WPT), but capacitive wireless power transfer (C-WPT) has the potential to provide safety and size improvements over I-WPT. Current C-WPT research is focused on resonant capacitive coupling methods. Such works have reported power …
-
Design of an AUV recharging system
… batteries will continue to be the AUV power source of choice for at least the near future. Thus, a need exists in both military and commercial markets for a universal, industry-standard underwater AUV recharge system. A novel solution using a linear coaxial wound transformer (LCWT) …
-
Design and modeling of wireless link for biomedical implantable applications
… of electronics systems and reduction of power consumption of chips make the actual implantation of extremely complex microsystems possible. For these microsystems, the wireless communication link is essential to ensure robust communications between an implanted device and an external …
-
Evaluation of Universal Docking Solutions for Autonomous Underwater Vehicles
… material durability, sensor integration, and power transfer efficiency will refine these designs for field applicability. This research lays the groundwork for universal docking standards and proposes adaptable solutions to alleviate operational limitations in underwater missions.
-
Development of a Novel Multiport Power Converter for Inductive Power Transfer Applications
… that wireless EV charging through Inductive Power Transfer (IPT) can potentially accelerate the uptake of EVs. As opposed to plug-in charging, wireless systems enable EV charging without the need for user interaction. Hands-free initiation of the charging process makes IPT technology much …
-
Optimum Performance of UHF RFID Tags in Dielectric Environment
… and present the trade-off to be made with the power transfer efficiency to obtain a tag working in wider range of dielectric materials. We make two specific recommendations for future work to increase the accuracy and usefulness of this work.
-
Design of a Phi-2 and a Class E inverter for underwater systems
… submarines. This can be done with wireless power transfer (WPT), which can transmit power efficiently across mediums within the submarine, therefore eliminating the need for physical connections and making underwater systems more compact and light-weight. The thesis presents two WPT systems …
-
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 …
-
Fusion welding of diboride-carbide ceramic composites
… zone (full penetration), the arc to workpiece power transfer efficiency was estimated to be 2 grain lengths were observed to decrease between binary PAW FZs (~1 mm in length), and binary PPAW FZs (~0.8 mm in length), and an increasing aspect ratio for ZrB<sub>2</sub> grains in PPAW welds (up to …
-
Silicon-Based PALNA Transmit/Receive Circuits for Integrated Millimeter Wave Phased Arrays
… in meeting system performance and size/weight/power (SWAP) requirements. This work demonstrates a loss-aware methodology for analysis and design of switchless transmit/receive (T/R) circuits. The methodology provides design insights and a practical, generally applicable approach for solving the …
-
Topology Investigation and System Optimization of Resonant Converters
Over the past several years, energy efficiency and power density have become the top concerns for power conversion. Rising energy intensity leads to a higher cost of delivering power. Meanwhile, the demand for compact power supplies grows significantly. It requires power supplies with high …
-
Design of autonomous sustainable unmanned aerial vehicle - A novel approach to its dynamic wireless power transfer
… main problem still not able to overcome which is power requirement for continuous autonomous operation. When the operation needs more power, but batteries can only give for 20 to 30 mins of flight time. These types of system are not reliable for long term civilian operation because we need to …
-
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 …
-
Design and Control of Capacitive Power Transfer Systems
Wireless power transfer (WPT) has enjoyed growing popularity in the past few decades as it provides a flexible and effective way of delivering power to loads without any physical contact. Among all the forms of conducting WPT, inductive power transfer (IPT) technology is the most extensively used. …
-
Dual-Band Power and Communication Antennas for Wireless Brain-Computer Interfaces
… face two key challenges: (1) remaining powered over a long duration and (2) communicating with an external system with sufficient bandwidth in an unconstrained environment without data dropouts. A viable solution to solve these problems is to supply power to the BCI device via inductive …
-
Optimization of silicon photonic devices for polarization diversity applications
… topic to be dealt with during the design of high efficiency optoelectronic subsystems for further enhancement of their performances. To characterize the device polarization properties a vectrorial approach is needed. In this work, the numerical analysis has been carried out by using the powerful …
-
A design technique for geometric optimisation of resonant coil sizes in low to mid frequency inductive power transmission systems.
Wireless power transfer (WPT) is a well-established method of energising electrically-powered devices. Among the different available WPT techniques, Resonant Inductive Power Transfer (RIPT) has been adapted for use in a wide range of applications. The primary reason is the relatively higher Power …
-
Loosely Coupled Transformer and Tuning Network Design for High-Efficiency Inductive Power Transfer Systems
Transfer signal without wire has been widely accepted after the introduction of cellular technology and WiFi technology, hence the power cable is the last wire that has yet to be eliminated. Inductive power transfer (IPT) has drawn substantial interest in both academia and industry due to its …
-
Theoretical Parametric Study of Through-Wall Acoustic Energy Transfer Systems
… require novel solutions for contactless energy transfer. Many engineering applications require unique approaches to power electrical components without using physical wires. In the past decade, awareness of the need to wirelessly power electrical components spawned many forays into the field of …