MOS-FET式メガヘルツ帯インバータにおけるサージ電圧抑制の一検討 Suppression of Surge Voltage in MOS-FET DC-RF Inverter Operating in the Order of MHz

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When a megasonic transducer having a low impedance of one ohm or so is connected as a load to the inverter operating in the order of MHz, a snubber circuit is generally used to suppress the surge voltages generated across the switching device.<br>This paper analyzes the surge voltage generation and suppression for the single-ended MOS-FET DC-RF inverter feeding an RF power of up to 1kW to the resistive and resonating loads, respectively. A switched snubber of high speed type consisting of an Nchannel MOS-FET and a capacitor is proposed for suppressing surge voltages. Loss power due to the charging and discharging currents flowing through the capacitor in the switched snubber is analyzed and numerically verified. Based on the analysis carried out for the resistive inverter load, the mechanisms of the surge voltage generation and suppression are analyzed for the resonating inverter load. When a megasonic transducer is used as a resonating load, the surge voltage suppression is also described.

収録刊行物

  • 電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society  

    電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society 117(2), 172-181, 1997-02 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10002723858
  • NII書誌ID(NCID)
    AN10012320
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09136339
  • NDL 記事登録ID
    4128706
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-1608
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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