Design of 3D Wireless Power Transfer System Based on 3D Printed Electronics

Hou, Tao; Xu, Jiazhu; Elkhuizen, Willemijn S.; Wang, Charlie C. L.; Jiang, Jiehui; Geraedts, Jo M. P.; Song, Yu

doi:10.1109/access.2019.2928948

Cited by 25 publications

(16 citation statements)

References 51 publications

(52 reference statements)

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“…Electronics 2020, 9, x FOR PEER REVIEW 9 of 13 Figure 10. Single-layer winding model SL (32,25) at different rotation angles of Rx coil.…”

Section: Experiments Results and Validationmentioning

confidence: 99%

“…Different methods of winding the Tx and Rx coils resulted in different values of the coupling coefficients and mutual inductances, as illustrated in Figure 5. DL (64, 50) and SL (32,25) designs had very high values of M and k. However, cost, volume, and weight were higher than those of other models. In addition, for the magnetically coupled resonant (MCR) WPT design, the k value could not be very high.…”

Section: Design Procedures For High Efficiencymentioning

confidence: 95%

“…In Figure 4a, the Tx and Rx coils took the same shape of hemicylindrical structures, and could be denoted as DL (64, 50). In Figure 4h, the Tx and Rx coils took the same shape of hemicylindrical structures and could be denoted as SL (32,25). As mentioned before, a constant PTE during the rotation of the Rx coil depends on mutual inductance and coupling coefficient, which follows the winding structure.…”

Section: Design Procedures For High Efficiencymentioning

confidence: 97%

“…With the rotation of the Rx coil, B was reduced. Furthermore, Figure 10 displays the B of SL (32,25). Compared with the best selected design, the level of LMFs was decreased by 22.5%.…”

Section: Design Procedures For Low-leakage Magnetic Fieldsmentioning

confidence: 99%

“…A WPT system made of a bowl-shaped transmitter (Tx) coil and a box-shaped receiver (Rx) coil was investigated and could be embedded in an in-ear hearing aid [24]. Hou, et al [25] fabricated 3D windings for the WPT system. Moreover, Ha-Van et al [26] studied an omnidirectional WPT system with a cube-shaped Tx coil that could be a possible way of charging portable devices.…”

Section: Introductionmentioning

confidence: 99%

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Design of a Cylindrical Winding Structure for Wireless Power Transfer Used in Rotatory Applications

Houran¹,

Yang²,

Yang³

2020

Electronics

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A cylindrical joint structure for wireless power transfer (WPT) systems is proposed. The transmitter (Tx) and receiver (Rx) coils were wound on hemicylindrical and cylindrical structures, respectively. The Rx coil rotates freely around the axial direction of the Tx coil. Different methods of winding the Tx and Rx coils are given and discussed. Electromagnetic fields (EMFs) around the WPT windings should be lower than the limits set by WPT standards. Therefore, the WPT windings were designed to reduce EMF level and maintain constant power-transfer efficiency (PTE). The design procedures of the windings are discussed in detail. EMF analysis was done under different rotation angles (α). The selected design reduced the variation of the mutual inductance (M). As a result, it maintained a constant PTE while rotating the Rx coil between 0° and 85°. Moreover, leakage magnetic fields (LMFs) near the WPT coils of the chosen design were reduced by 63.6% compared with other winding methods that have the same efficiency. Finally, a prototype was built to validate the proposed idea. Experiment results were in good agreement with the simulation results. The WPT system maintained constant efficiency in spite of the rotation of Rx coil, where efficiency dropped by only 2.15% when the Rx coil rotated between 0° and 85°.

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“…Electronics 2020, 9, x FOR PEER REVIEW 9 of 13 Figure 10. Single-layer winding model SL (32,25) at different rotation angles of Rx coil.…”

Section: Experiments Results and Validationmentioning

confidence: 99%

Section: Design Procedures For High Efficiencymentioning

confidence: 95%

Section: Design Procedures For High Efficiencymentioning

confidence: 97%

“…With the rotation of the Rx coil, B was reduced. Furthermore, Figure 10 displays the B of SL (32,25). Compared with the best selected design, the level of LMFs was decreased by 22.5%.…”

Section: Design Procedures For Low-leakage Magnetic Fieldsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design of a Cylindrical Winding Structure for Wireless Power Transfer Used in Rotatory Applications

Houran¹,

Yang²,

Yang³

2020

Electronics

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Fabrication Techniques for Curved Electronics on Arbitrary Surfaces

Tian

Luo

et al. 2020

Adv Materials Technologies

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Curved electronics, which are better coordinated and blended with the natural world due to the characteristics of large contact area, high space adaptability, etc., have been widely used in a quantity of areas ranging from conformal curved antennas and sensors in detection and measurement, to artificial smart skin of aerospace. Recent developments in curved electronics have made an increasing progress to the historic drawbacks of conventional planar electronics, however significant challenges still exist. Here, the main kinds of conformal fabrication technologies, including transfer printing, assembly techniques, curved lithography, conformal inkjet printing, 3D printing, and laser direct writing, are reviewed to realize manufacturing deformable/undeformable electronics on curved or arbitrary surfaces. The processes and features of each technology are comprehensively summarized together with their progress and potential values. Finally, the challenges and opportunities for fabricating conformal electronics on arbitrary surfaces are also discussed.

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