Modelization and characterization of 2D and 3D mid inductors for multidirectional inductive proximity sensing

2018 13th International Congress Molded Interconnect Devices (MID)

Semet³

et al. 2018

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Omnidirectional inductive wireless charging system of a mobile is studied. Instead of using conventional planar coils printed on circuit boards, 3D Molded Interconnect Device (3D-MID) coils are used. The receiver is a single piece that has 3 elliptic inductors pointing in 3 different directions of the space. A half meter cubic box with 4 planar emitting inductors on 4 sides is used to transmit power at 6.78 MHz to the receiver inside the cube, regardless to the position and orientation of the receiver. Measurement results show that the 3D-MD receiver can get a power of 1.4 W at 7.9% efficiency on most of the positions inside the box. When the receiver is at the central position and also in the corners of the box, there is little variation of the transferred power when the receiver turns 360°, which means that it is almost insensitive to angular misalignment. However, when the receiver moves from the center towards the corners, there is a drop or an increase of power, which means that there is a lack of uniformity of the power which transferred near the corners. Ways to improve this point are discussed. However, our conclusion is that 3D-MID technology is an interesting technology for replacing the planar coils used in conventional WPT receivers.

Section: Design Of the Receivermentioning

confidence: 86%

The Potential of 3D-MID Technology for Omnidirectional Inductive Wireless Power Transfer

Sergkei¹,

2018 13th International Congress Molded Interconnect Devices (MID)

Semet³

et al. 2018

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“…Multidirectional receivers require coils with a 3D design that can be made with the 3D MID technology [9]. Previous work showed a way for designing high quality 3D MID inductors [10]. In addition, 3D MID, which allows (relatively) easy integration of 3D inductance coils at the surface of everyday objects.…”

Section: Discussionmentioning

confidence: 99%

Omnidirectional inductive wireless charging of a 3D receiver cube inside a box

Kamotesov

2018 IEEE Wireless Power Transfer Conference (WPTC)

Semet

et al. 2018

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Omnidirectional inductive wireless charging of a 6×6×6 cm 3 3D receiver cube with 6 planar coils inside a 47×47×47 cm 3 box with 4 planar emitting coils is studied. The power delivered to the cube in the central position of the box is in the 1 W-2.4 W range with 6-7% transfer efficiency. In this position, the power is insensitive to the pitch angular orientation. When moving the 3D receiver cube toward the corners of the box, there is no sudden drop of transmitted power. However, the delivered power near the corners increases or decreases in an acceptable range depending on the orientations of the magnetic field of the emitters. Perspectives of this work, when replacing the manufacturing of coils based on PCBs technology by 3D Molded Interconnect Device technology, are briefly discussed.

“…La technologie plastronique 3D permet de réaliser des inductances non planaires avec un facteur de qualité suffisant et de les disposer par exemple sur une sphère (13). En l'occurrence, le dispositif prévu est composé de deux demi-sphères avec 11 inductances réparties à la surface.…”

Section: Présentation Du Dispositif Et Principe De Fonctionnementunclassified

Formation en Plastronique et aux dispositifs MID

Cabrera

Semet

et al. 2017

J3eA

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Dans un contexte concurrentiel accru, les industries doivent développer de nouvelles solutions pour répondre à des défis majeurs (innovation, design, fonctionnalité, consommation…). La plastronique, qui est au confluent des domaines de la plasturgie et de l'électronique, permet de répondre à ces nouvelles attentes, en proposant des objets intelligents et connectés. Elle offre la possibilité de concevoir des systèmes de forme complexe 3D. Dans ce contexte de rupture technologique, l'innovation est à l'interface du génie électrique, de la mécatronique et de la plasturgie. Elle fait également appel à des domaines connexes et indispensables tels que la physique et la chimie. La convergence de ces domaines rend indispensable l'acquisition de nouvelles connaissances et compétences transverses dans les métiers de demain. Pour répondre à ces besoins, une formation en plastronique est en émergence à l'Université de Lyon. Les modalités seront décrites dans cet article. Les compétences initiales des apprenants seront élargies pour acquérir les bases théoriques et pratiques de la conception de systèmes plastroniques. Cette formation s'appuiera sur des projets concrets en lien direct avec les acteurs variés de la filière (aéronautique, médical, robotique, etc.). Le prototypage y tiendra une place importante, en permettant de confronter les apprenants à des problématiques industrielles concrètes.