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Related Concept Videos

Maximum Power Transfer01:16

Maximum Power Transfer

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...

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Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees
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High-Speed OQPSK and Efficient Power Transfer Through Inductive Link for Biomedical Implants.

Guillaume Simard, Mohamad Sawan, Daniel Massicotte

    IEEE Transactions on Biomedical Circuits and Systems
    |July 16, 2013
    PubMed
    Summary

    This study presents optimized inductive links for biomedical implants, achieving 61% power transfer efficiency and 4.16 Mb/s data rates. The coplanar coil geometry enhances displacement tolerance for reliable wireless power and data transmission.

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    Area of Science:

    • Biomedical Engineering
    • Electrical Engineering
    • Wireless Communication

    Background:

    • Biomedical implants necessitate efficient wireless power and bidirectional data transfer.
    • Previous research introduced a novel topology for a multiple-carrier inductive link.

    Purpose of the Study:

    • To present fabricated coils for a novel multiple-carrier inductive link topology.
    • To analyze the efficiency of power transfer and phase-shift-keying communications.
    • To demonstrate the suitability of coplanar geometry for displacement tolerance.

    Main Methods:

    • Fabrication of coils for a multiple-carrier inductive link.
    • Theoretical analysis of power transfer efficiency and communication performance.
    • Experimental validation of the optimized inductive link with offset quadrature phase-shift keying modules.

    Main Results:

    • Coplanar coil geometry demonstrated improved displacement tolerance.
    • Achieved up to 61% efficiency for wireless power transfer.
    • Obtained a data rate of 4.16 Mb/s with a bit-error rate below 2 × 10⁻⁶.

    Conclusions:

    • The optimized inductive link with coplanar coils is suitable for biomedical implants.
    • The presented design enables efficient wireless power and high-speed data transfer.
    • This work advances wireless communication capabilities for implantable devices.