2014 IEEE International Conference on Communiction Problem-Solving 2014
DOI: 10.1109/iccps.2014.7062303
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Uniform magnetic field of the planar coil with new winding structure for displacement-insensitive WPT

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Cited by 11 publications
(6 citation statements)
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“…For this purpose, a number of structures of transformer windings have been proposed in many papers. The majority of these structures implemented a flat spiral shape [Shen et al, 2014: Ramezani et al, 2016, with only a few ones applying a non-flat spiral shape [Honjo et al, 2016]. At another level, most of these structures contain an air gap separating the two windings, while very few others use a magnetic core.…”
Section: Theoretical Analysismentioning
confidence: 99%
“…For this purpose, a number of structures of transformer windings have been proposed in many papers. The majority of these structures implemented a flat spiral shape [Shen et al, 2014: Ramezani et al, 2016, with only a few ones applying a non-flat spiral shape [Honjo et al, 2016]. At another level, most of these structures contain an air gap separating the two windings, while very few others use a magnetic core.…”
Section: Theoretical Analysismentioning
confidence: 99%
“…In [8], half of the current of the outer windings flows through the inner windings of the TX coil, ensuring a higher misalignment tolerance. Furthermore, in [9], the principle of the current distribution between the windings of the TX coil was presented. As proposed in [10], the square spiral TX coil, with the adjusted position and current of each turn, produces improved homogeneity of the magnetic field in the charging plane.…”
Section: Introductionmentioning
confidence: 99%
“…Other planar solutions include the square TX coil consisting of one outer and three inner coils [12] and the square TX coil with one outer and one inner coil [13], which requires an optimized RX coil design for optimal transfer efficiency. Although homogeneity was achieved, the planar TX coils were relatively small and transmitted power mainly over short distances (up to 1.5 cm) [2][3][4][5][6][7][8][9][10].…”
Section: Introductionmentioning
confidence: 99%
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“…However, a major disadvantage is that the transfer efficiency deteriorates significantly with lateral offset between the Tx and the Rx coils. Therefore, many WPT systems have been proposed that utilize a number of Tx coils [4], [5], subcoils [6]- [8], resonator arrays [9], and 3D coils [10] to successfully compensate the degraded transfer efficiency due to misalignment.…”
Section: Introductionmentioning
confidence: 99%