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Related Concept Videos

Maximum Power Transfer01:16

Maximum Power Transfer

805
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
805

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Related Experiment Video

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Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees
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An Investigation of Body-Coupled Power Transfer for Multiple Implants.

Cheng Han, Chuer Lin, Shan Yu

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 3, 2025
    PubMed
    Summary

    Body-coupled power transfer (BCP) can effectively power multiple implanted devices for distributed neural interfaces. This research shows minimal interference between nodes, enabling flexible and efficient wireless power solutions for medical treatments.

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    Area of Science:

    • Biomedical Engineering
    • Implantable Devices
    • Wireless Power Transfer

    Background:

    • Distributed neural interfaces offer promising disease treatment potential.
    • Wireless power supply is a critical challenge for fully implantable devices.
    • Body-coupled power transfer (BCP) is a flexible solution for electrode misalignment and longer distances.

    Purpose of the Study:

    • To investigate the feasibility of using BCP for multiple fully implantable devices.
    • To analyze the inter-effect of multi-node BCP on path gain.
    • To compare galvanic and capacitive coupling for multi-implant BCP.

    Main Methods:

    • Electromagnetic simulations were performed.
    • Practical experiments were conducted.
    • Performance was evaluated across three implanted nodes using galvanic and capacitive coupling.

    Main Results:

    • BCP effectively powers multiple implanted receivers.
    • Minimal mutual interference was observed between nodes.
    • Both galvanic and capacitive coupling demonstrated viability.

    Conclusions:

    • BCP is a viable solution for powering multiple implants in distributed neural interfaces.
    • The study provides essential insights for implementing BCP in such systems.
    • BCP offers efficient and flexible wireless power for advanced medical treatments.