Title
A Smart Multicoil Inductively Coupled Array for Wireless Power Transmission
Abstract
This paper presents a novel resonance-based multicoil array structure to wirelessly charge or power up apparatus, like smart phones, computer mouses, smart animal research systems, or implanted medical devices. The proposed array consists of a novel multicoil inductive link, whose primary resonator is made of several identical coil elements connected in parallel and arranged in an array. Such a structure presents several key features compared to previous inductive coil arrays. The proposed approach can do the following: 1) deliver power with superior efficiency over longer separation distances; 2) naturally track the receiver position and localize transmitted power through nearby coil array elements without the need for complex control and detection circuitry; and 3) accommodate either short- or long-range power transmission applications simply by slightly modifying the receiver topology. The performance of the proposed structure is verified by measurement results. In a three-coil configuration, the prototype provides a power transfer efficiency (PTE) of 83.3% and a power delivered to the load (PDL) of 3.87 W for a separation distance below 1 cm, while in a four-coil configuration, it provides a PTE of 76% and a PDL of 115 mW for a separation distance of 4 cm.
Year
DOI
Venue
2014
10.1109/TIE.2014.2308138
Industrial Electronics, IEEE Transactions  
Keywords
Field
DocType
coils,inductive power transmission,PTE,identical coil elements,long-range power transmission applications,multicoil inductive link,power transfer efficiency,primary resonator,receiver position,receiver topology,resonance-based multicoil array structure,separation distances,short-range power transmission applications,smart multicoil inductively coupled array,three-coil configuration,wireless power transmission,Free positioning,implantable devices,multicoil inductive link,power delivery to the load,power localization,power transfer efficiency (PTE),wireless power transmission
Array data structure,Transmitted power,Wireless,Coupling,Resonator,Electronic engineering,Electromagnetic coil,Engineering,Maximum power transfer theorem,Power transmission,Electrical engineering
Journal
Volume
Issue
ISSN
61
11
0278-0046
Citations 
PageRank 
References 
15
0.97
17
Authors
4
Name
Order
Citations
PageRank
Seyed Abdollah Mirbozorgi1738.61
Hadi Bahrami2769.55
Mohamad Sawan3774172.87
B Gosselin435360.22