Single Wire Capacitive Wireless Power Transfer System for Wearable Biomedical Sensors Based on Flexible Graphene Film...

Area of Science:

• Materials Science
• Electrical Engineering
• Biomedical Engineering

Background:

• Traditional capacitive wireless power transfer (CPT) systems using metal plates have limitations in power density and volume, making them unsuitable for smart wearable biomedical sensors.
• Graphene offers unique properties including flexibility, transparency, high conductivity, and impermeability, making it a promising material for advanced electronic applications.
• Biomedical sensors in smart wearable devices require efficient and compact power solutions.

Purpose of the Study:

• To develop and present a novel flexible graphene film based capacitive wireless power transfer (FGCPT) system.
• To demonstrate the feasibility of using a single graphene film as a receiver for powering biomedical sensors.
• To overcome the limitations of conventional CPT systems in terms of power density and volume for wearable applications.

Main Methods:

• Fabrication of a flexible graphene film for use in a capacitive wireless power transfer system.
• Design and implementation of the FGCPT system architecture.
• Experimental validation of the system's performance, including power transfer efficiency and output voltage.

Main Results:

• The developed FGCPT system successfully powers biomedical sensors.
• A power level of 200 mW was achieved.
• A maximum output voltage of 9 V was recorded.
• The system's performance was verified through simulations and experiments.

Conclusions:

• The flexible graphene film based capacitive wireless power transfer (FGCPT) system is a viable solution for powering biomedical sensors in smart wearable devices.
• Graphene's unique properties enable a compact and efficient wireless power transfer solution.
• The FGCPT system offers a significant improvement over traditional CPT systems for biomedical applications.