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A cup-shaped in-vehicle wireless charging system that allows free alignment for charging portable devices is proposed in this paper. A 3D transmitter coil structure is designed to provide the sufficient magnetic flux density perpendicular to each charging surface. By adding the flexible ferrite sheet surrounding the structure, the leakage of magnetic flux is eliminated to meet the electromagnetic...
This paper presents a combined wireless power transmitting coil designed for endoscopic capsule. In the design, a group of vertically segmented transmitting coils are combined to work. According to the position of the capsule, one, two or three segmented transmitting coils will be selected to work, which makes the capsule closer to the center of the combined transmitting coils. The mechanism ensures...
A wireless charging system with magnetic field shaping is proposed. The magnetic field of wireless power transmission is shaped by an innovated structure of resonator, which is named as Shaped Magnetic Field Resonator (SMFR). The magnetic field is shaped within the zone of active transmission and the magnetic flux density is greatly reduced outside the zone of active transmission. Therefore, the Electromagnetic...
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