補助人工心臓用空心型経皮エネルギー伝送システム

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書誌事項

タイトル別名
  • Air-Core Transcutaneous Energy Transmission System for Ventricular Assist Device:
  • 補助人工心臓用空心型経皮エネルギー伝送システム : 絶縁トランスの巻き方と共振による伝導性妨害波の低減の検討
  • ホジョ ジンコウ シンゾウヨウ クウシンガタ ケイヒ エネルギー デンソウ システム : ゼツエン トランス ノ マキ カタ ト キョウシン ニ ヨル デンドウセイ ボウガイハ ノ テイゲン ノ ケントウ
  • Reduction of Conducted Emission Using Resonance and Winding Method of the Isolation Transformer
  • ―絶縁トランスの巻き方と共振による伝導性妨害波の低減の検討―

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抄録

<p>　A transcutaneous energy transmission system (TETS) that supplies power to ventricular assist devices has been studied. TETS causes conducted emissions (CE) and radiated emissions because it transmits large electromagnetic energy(approximately 15 W). In this study, the CE from TETS was measured and the reduction method of CE was investigated. First, the optimum phase shift time between the drain-source voltage and the drain current of the MOSFET in the inverter circuit of TETS was determined by adjusting the resonance capacitor C1. Second, the parasitic capacitance between the primary and secondary coils of the high-frequency isolation transformer was reduced by changing the winding pattern. As a result, the CE was reduced by 80 dBµV at 5 MHz by insertion of C1 of 7.74 nF. Additionally, by using an isolation transformer with concentrated winding, the CE was reduced by 9 dBµV at 15 MHz, as compared to the isolation transformer with uniform winding.</p>

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