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Open Access Design, Test and Optimization of Inductive Coupled Coils for Implantable Biomedical Devices

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Biomedical implant devices are fast becoming a growing part of the healthcare industry. Providing power to these devices in such a confined area is a critical challenge. Consequently, resonancebased wireless power delivery provides a harmless yet effective way for powering these implantable biomedical devices. This technique relies on transferring power via the inductive coupling technique. In this regard, optimizing the quality factor and matched resonant frequency is required to achieve high efficiency. However, the efficiency depends on the space available for the coil and the separation distance between the two coils. In our case, the minimum separation distance between the two coils needs to be at least 2 cm. Therefore, we demonstrate the design, simulation and experimental procedure of an optimized wireless power delivery system for bio-implantable applications with various considerations for size limitations. Our design delivers 68 mW output power to a 50-Ω load with an efficiency of 67% in vitro test and 74.8% in the FEM simulation.
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Document Type: Research Article

Publication date: March 1, 2019

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  • The electronic systems that can operate with very low power are of great technological interest. The growing research activity in the field of low power electronics requires a forum for rapid dissemination of important results: Journal of Low Power Electronics (JOLPE) is that international forum which offers scientists and engineers timely, peer-reviewed research in this field.
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