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High efficiency midrange wireless power transfer system
2011 IEEE MTT-S International Microwave Workshop Series on Innovative Wireless Power Transmission: Technologies, Systems, and Applications, 2011Wireless power transfer systems using near-field magnetic coupling are attractive as they allow power transfer with high efficiency and do not require an unobstructed path between transmitter and receiver. In this work a two coil wireless power transmission system is analyzed, including the driving amplifier, and a demonstration system is built and ...
J. Garnica +2 more
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Maximum power transfer theorem with arbitrary Efficiency for Wireless Power Transfer
Physica ScriptaAbstract Wireless power transfer (WPT) has been actively studied by many companies and research institutes for decades, and individual technologies have been highly developed. However, except for nearly contact WPT, it has not yet reached a standard adopted by multiple manufacturers.
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Efficient Inductive Power Transfer for biomedical applications
2012 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, 2012Wireless Power Transfer (WPT) using inductive coupling is an essential method to power biomedical implants as it provides a hassle-free alternative to batteries and dangling wires. The Power Transfer Efficiency (PTE) of the inductively coupled link is a key quality metric using which the link is evaluated.
Yong-Xin Guo, Rangarajan Jegadeesan
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Efficient contactless power transfer system for EVs
2016 51st International Universities Power Engineering Conference (UPEC), 2016Based on the inductive power transfer (IPT), the contactless approach allows safe and comfortable operations of battery charging for Electric Vehicles (EVs). In this paper, a contactless system particularly suitable for E-bike battery charging is proposed.
Caruso M. +5 more
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Power and efficiency of 2-D omni-directional wireless power transfer systems
2015 IEEE Energy Conversion Congress and Exposition (ECCE), 2015This paper presents a mathematical analysis on 2-dimensional omni-directional wireless power transfer. It is shown that with the use of current control in the transmitter coils, magnetic field vector can be generated to point at all directions in a 2-dimensional sense.
Hui, SYR, Lin, D, Zhang, C
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Maximum efficiency analysis in wireless power transfer
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP), 2018The optimal design of loosely coupled transformer is the key technique in the wireless power transfer (WPT) system. An improved reluctance model is proposed based on partitioning flux tube method, all parts of reluctance and coupling coefficient expressions are shown.
Liangyu Bai +4 more
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Increasing inductive power transferring efficiency for Maglev emergency power supply
2006 37th IEEE Power Electronics Specialists Conference, 2006This paper presents a new method for increasing the linear generator output efficiency of contactless emergency power supply for the Maglev. It is realized by installing a compensating capacitor in the output side of the auxiliary linear generator In this paper, the theory of inductive power transferring for Maglev is reviewed firstly, and then the ...
Lu Wang, Min Chen, Dehong Xu
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Controlled-resonance power architecture enables efficient flexible wireless power transfer
2016 IEEE Wireless Power Transfer Conference (WPTC), 2016It has long been a significant challenge to improve the performance of flexible wireless power transfer. This paper proposes a novel controlled resonance power architecture for use in weakly coupled systems with less power processing stages, and investigates the basic design principles and implementation in power management ICs.
null Hengchun Mao +3 more
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Transfer Efficiency Enhancement on Wireless Power Transfer Using Metamaterial
2023 International Conference on Information Technology (ICIT), 2023Muhammad Sukriyllah Yusri +5 more
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High-Efficiency Hydraulic Power Transfer Units for Multisystem Aircraft
SAE Technical Paper Series, 1979<div class="htmlview paragraph">Many contemporary aircraft requiring multiple hydraulic systems for power redundancy have utilized hydraulic power transfer units to provide that service. These units, which are commonly called reversible motor pumps (RMPs), have been heavy, noisy and inefficient with generally very poor differential pressure ...
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