Empowering Minimally Invasive Bioelectronic Devices: Silver-Enhanced Magnetoelectric Wireless Power Transfer For Unprecedented Power Density And Advanced Capabilities

Abstract

Introduction: “Wireless Power Transfer (WPT)” helps miniaturize and extend the lifetime of “implanted medical devices (IMDs)”. Traditional magnetic field inductive coupling is common. Health-conscious and ageing populations are driving wearable and implanted electronics, which enable biological signal monitoring. Advanced flexible bio-integrated circuits, MEMS, and biocompatible materials improve signal accuracy and patient comfort. Developing minimally invasive, lightweight power sources with flexibility and biocompatibility for next-gen bioelectronics remains difficult.

Aim and objectives: The study aims to improve the power density and capabilities of minimally invasive bioelectronic devices by using silver-enhanced magnetoelectric wireless power transmission.

Method: The “Wireless Power Transfer System (WPTS)” uses an Equivalent Circuit Model to transform magnetic waves to mechanical vibrations and piezoelectrically to electrical energy, unlike the RIC design. The ME transducer, having a PZT layer between Galfenol layers, receives and a circular coil transmits. Interface coupling coefficients affect ME coupling. Experimental validation uses a single-coil RF power amplifier to create a magnetic field and test the transducer's performance.

Result: A transmitter coil and magnetoelectric transducer-based wireless power transfer system is the subject of the investigation. Important features of the materials and shapes are shown. In this analysis, we uncover complex system behaviour by examining frequency responses and spatial differences in open-circuit voltage. It is crucial to take load resistance and magnetic field alignment into account while designing the wireless system in order to maximize power transfer efficiency, as these factors considerably affect power output.

Conclusion: The work validates analytical models for Magnetoelectric Wireless Power Transfer Systems by investigating magnetic field and misalignment effects. Magnetic field alignment optimizes power delivery.