Design and Investigation on Flexible Inductive Power Tranmission Shields

• Abstract:

  Inductive power transmission coils are more and more used to charge devices wirelessly. In many applications, robustness, small size and flexibility of the used coils are required. For that, a design of flexible coil associated to a flexible ferrite shield becomes a necessity in order to achieve an efficient power transfer. In this paper, a new material composition for the ferrite shield have been proposed. It guarantees a better flexibility and performance using a simple fabrication process. Therefore, an optimization of the ferrite shield concentrations and thicknesses are performed. The influence of different prepared ferrite shield on the coil self-inductance and quality factor are investigated. Results shows that a concentration of ferrite of about 85 wt. % present the highest efficiency in case of high thickness with a self-inductance of 20.5 µH while in low concentration the measured coil self-inductance is around 17.5 µH.
• Keywords:

  Wireless Power Transmission, Inductive Power Transmission, Flexible Shield, Flexible Coil, Efficiency
• Download:

  IMEKO-TC19-2019-09.pdf
• DOI:

  _unreg_tc19-2019.09

Event details: