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<p>Wireless energy transfer systems are critical for next-generation medical electronics to ensure continuous power for implantable devices. However, stable power transmission under multiangle and spatial misalignments remains challenging. This paper introduces a dynamic, uniform, anti-misalignment wireless energy transfer system tailored for such scenarios. By generating a uniform magnetic field through an external source, the system reliably transmits power under center distance offsets, angular misalignments, and lateral or longitudinal displacements. Theoretical analysis, formula derivations, and Maxwell simulations were conducted for optimization. Experiments validated uniform magnetic fields within a 10&#xa0;cm radial distance and a 6&#xa0;cm cylindrical space, delivered 1&#xa0;W power to a 2-mm coil, and met pacemaker requirements. With an optimized 5&#xa0;mT magnetic field, the system ensures stable power and eliminates frequent battery replacements. This paper offers an innovative solution and valuable insights for advancing wireless power transfer in medical electronics.</p>

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Large-space multiangle dynamic uniform and continuous wireless charging for implantable devices

  • 期刊论文

  • 发表日期：

    2025年9月9日

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  • Yuhui Xu

摘要

Wireless energy transfer systems are critical for next-generation medical electronics to ensure continuous power for implantable devices. However, stable power transmission under multiangle and spatial misalignments remains challenging. This paper introduces a dynamic, uniform, anti-misalignment wireless energy transfer system tailored for such scenarios. By generating a uniform magnetic field through an external source, the system reliably transmits power under center distance offsets, angular misalignments, and lateral or longitudinal displacements. Theoretical analysis, formula derivations, and Maxwell simulations were conducted for optimization. Experiments validated uniform magnetic fields within a 10 cm radial distance and a 6 cm cylindrical space, delivered 1 W power to a 2-mm coil, and met pacemaker requirements. With an optimized 5 mT magnetic field, the system ensures stable power and eliminates frequent battery replacements. This paper offers an innovative solution and valuable insights for advancing wireless power transfer in medical electronics.