Modeling and simulation of a thin film power transfer cell for medical devices and implants

• Published in: 2009 IEEE International Symposium on Circuits and Systems (ISCAS) pp. 3086 - 3089
• Main Authors: Xiaoyu Liu, Fei Zhang, Hackworth, S.A., Sclabassi, R.J., Mingui Sun
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.05.2009
• Subjects: Biomedical equipment; circuit analysis; Coils; implantable device; Implants; medical device; Medical services; Medical simulation; Nonhomogeneous media; power transfer; Resonance; Strips; strong coupling; thin film cell; Thin film devices; Transistors; wireless electricity; wireless power transfer; witricity
• ISBN: 1424438276; 9781424438273
• ISSN: 0271-4302
• DOI: 10.1109/ISCAS.2009.5118455

Recently, a highly efficient method to transmit power wirelessly using mid-range resonant coupling was reported. Based on this method, we present a multilayer thin film design of power transfer cells for medical applications. Consisting of a tape coil in the exterior layer and strips in the interior layer separated by an insulation layer, these cells have an equivalent structure of multiple inductors and capacitors, forming several resonant frequencies. In order to verify these frequencies, a mesh current analysis is performed computationally. Our experiments show that this analysis is accurate. The results of this study are useful for the design of high-performance thin film cells for wireless power transfer.