本論文旨在研究非接觸式電能傳輸技術，建構於植入式神經電刺激器。文中首先探討不同幾何形狀感應線圈，並選用圓形線圈作為感應耦合結構，且藉由提高電能傳輸頻率至射頻頻段，以縮小感應線圈體積。次級側部分則利用諧振電路改善阻抗特性，提升電能傳輸能力。電刺激策略則採取電流刺激模式，並使用延緩式仿單極性刺激波形，來增進刺激效果及避免傷害神經細胞。最後經由實測驗證，此系統可傳輸穩定電能給予植入式功能性神經電刺激器，並於間距10mm下最高電能傳輸效率近34.5%。

This thesis is to study the contactless power transfer technique for implanted neurostimulator. The different coupling structures are analyzed, then choose spiral coil as inductive coils. The size of coils can be reduced by increasing power transfer frequency to radio frequency. The design of resonant circuit can improve the impedance characteristic and system performance on secondary. The strategy of stimulation is current-regulated mode with delayed pseudomonophasic(DPS) waveform, which provide better effect of stimulation without causing tissue damage. According to the experiment result, the highest power transfer efficiency is approximately 34.5% under 10mm gap. The prototype of contactless power transfer system for implanted neurostimulator is confirmed to be feasible.

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