JP6924301B2 - フィードバック制御付き高電圧アナログ回路パルサー - Google Patents
フィードバック制御付き高電圧アナログ回路パルサー Download PDFInfo
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Description
本願は、「HIGH−VOLTAGE ANALOG CIRCUIT PULSER WITH FEEDBACK CONTROL」と題する2016年5月6日に出願された米国特許出願第15/148,344号の継続出願であり、参照により本明細書に援用される「HIGH−VOLTAGE ANALOG CIRCUIT PULSER」と題する、2016年2月29日に出願された米国仮特許出願第62/301,477号の利益を主張する。
Claims (24)
- サブマイクロ秒パルス電場発生器システムであって、
電源制御信号を発生させ、パルス発生器制御信号を発生させるように構成されたコントローラと、
前記電源制御信号を受信し、前記受信した電源制御信号に部分的に基づいて1つ以上の電圧を発生させるように構成された電源と、
前記1つ以上の電圧及び前記パルス発生器制御信号を受信し、前記電源から受け取った前記1つ以上の電圧に部分的に基づいて、及び前記コントローラから受信した前記パルス発生器制御信号に部分的に基づいて1つ以上のパルスを発生させるように構成されたパルス発生器と、
を備え、
前記パルス発生器が、パルス発生器段を備え、当該パルス発生器段が、
スイッチと、
前記スイッチに接続された容量性素子と、
損失の多い変圧器を有するスイッチドライバであって、前記損失の多い変圧器が、(1)連結された前記スイッチドライバへの高電圧を抑制するとともに、(2)次回のパルス発生の前に残留磁束を消散させるように構成されており、前記スイッチドライバが、前記スイッチに接続されて前記スイッチを切り換えるスイッチ制御信号パルスを生成するように構成されているスイッチドライバと、を備えることを特徴とするサブマイクロ秒パルス電場発生器システム。 - 前記発生器システムがセンサを備え、
前記センサが、熱電対、電圧プローブ、電流プローブ、インピーダンスプローブ、キャパシタンスプローブ、光センサ、湿度センサ、組織監視プローブ、または化学分析プローブのうちの1つ以上を含む、請求項1に記載の発生器システム。 - 前記コントローラが、組織に印加されるエネルギー、組織インピーダンス、組織インダクタンス、組織キャパシタンス、または前記組織に印加される瞬時電力のうちの1つ以上を計算するように構成された、請求項1または2に記載の発生器システム。
- 前記発生器システムが、1つ以上の前記パルスの特性のまたは1つ以上の前記パルスの結果の所望される値を示す情報を受け取るように構成されたインタフェースを備え、
前記コントローラが、前記所望される値に部分的に基づいて、前記電源制御信号もしくは前記パルス発生器制御信号またはその両方を発生させるように構成される、請求項1から3のいずれか1項に記載の発生器システム。 - 前記パルス発生器段が、複数のパルス発生器段のうちの第1のパルス発生器段である、請求項1から4にいずれか1項に記載の発生器システム。
- 前記パルス発生器段が、前記スイッチを通して前記複数のパルス発生器段のうちの他の少なくとも1つに直列に接続され、前記スイッチドライバからの前記スイッチ制御信号パルスに応じて、前記スイッチを閉じて前記1つ以上のパルスを発生させるように構成される、請求項5に記載の発生器システム。
- 前記パルス発生器が、並列に接続された複数のパルス発生器のうちの第1のパルス発生器であることを特徴とする、請求項1から6のいずれかに記載の発生器システム。
- 各パルス発生器が、さらに、各パルス発生器の出力部と複数のパルス発生器の他のパルス発生器の出力部との間に接続されたダイオードを有し、各ダイオードが、各パルス発生器を他のパルス発生器から切り離すように構成されている、請求項7に記載の発生器システム。
- 前記スイッチがスイッチスタックを備え、当該スイッチスタックが直列に接続された複数のスイッチを含むことを特徴とする、請求項1から8のいずれか1項に記載の発生器システム。
- 前記複数のスイッチのそれぞれが絶縁破壊電圧を有し、前記1つ以上の電圧が各スイッチの絶縁破壊電圧よりも大きく、少なくとも1つのパルス発生器段が、前記容量性素子に前記1つ以上の電圧を充電するように構成されている、請求項9に記載の発生器システム。
- 前記パルス発生器が、前記パルス発生器制御信号に応じてトリガパルスを生成するように構成されたドライバ回路を備える、請求項1から10のいずれか1項に記載の発生器システム。
- 前記1つ以上のパルスが1ナノ秒の範囲内であることを特徴とする、請求項1から11のいずれか1項に記載の発生器システム。
- 前記電源、前記コントローラ、及び前記パルス発生器が、集合的に、1つ以上の前記パルスの前記特性または前記パルスの前記結果に、前記インタフェースによって受け取られた前記情報によって示される前記所望される値にほぼ等しい値を有させるフィードバックループを形成する、請求項4に記載の発生器システム。
- 前記フィードバックループが、比例積分微分(PID)方法、次の制御信号値を決定するためのルックアップテーブル、または次の制御信号値を固定量により、増加させることもしくは減少させることを含んだ方法を使用して制御される、請求項13に記載の発生器システム。
- 前記コントローラが、1つ以上の前記パルスの特性のまたは前記パルスの結果の値を表す1つ以上のフィードバック信号を受信し、前記受信した1つ以上のフィードバック信号に部分的に基づいて前記電源制御信号及び前記パルス発生器制御信号のうちの少なくとも1つを発生させるように構成された、請求項1から14のいずれか1項に記載の発生器システム。
- 前記1つ以上のフィードバック信号が、測定された電圧、測定された電流、および測定された温度のうちの少なくとも1つを表す信号を備えることを特徴とする、請求項15に記載の発生器システム。
- 前記損失の多い変圧器が、5未満の一次巻き及び5未満の二次巻きを備える、請求項1から16のいずれか1項に記載の発生器システム。
- 前記発生器システムが、前記パルス発生器からパルスを受け取り、前記パルスを標的に印加するように構成された電極を備え、前記電極が、電流センサ、電圧センサ、および温度センサのうちの少なくとも1つを備える、請求項1から17に記載の発生器システム。
- サブマイクロ秒パルス電場発生器システムの作動方法であって、
コントローラが電源制御信号を発生することと、
前記コントローラがパルス発生器制御信号を発生することと、
電源が前記電源制御信号を受信することと、
前記電源が、前記電源制御信号に部分的に基づいて1つ以上の電圧を発生することと、
パルス発生器が、前記1つ以上の電圧及び前記パルス発生器制御信号を受け取ることと、
前記パルス発生器が、前記電源から受け取った前記1つ以上の電圧に部分的に基づいて、及び前記コントローラから受信した前記パルス発生器制御信号に部分的に基づいて1つ以上のパルスを発生することと、を含み、
前記パルス発生器が、パルス発生器段を有するサブマイクロ秒パルス発生器であり、前記パルス発生器段が、
スイッチと、
前記スイッチに接続された容量性素子と、
損失の多い変圧器を有するスイッチドライバであって、前記スイッチに接続されて前記スイッチを切り換えるスイッチ制御信号パルスを生成するように構成されているスイッチドライバと、を備え、
前記損失の多い変圧器が、(1)連結された前記スイッチドライバへの高電圧を抑制するとともに、(2)次回のパルス発生の前に残留磁束を消散させるように構成されていることを特徴とする方法。 - 請求項19に記載の方法が、インタフェースが、1つ以上の前記パルスの特性のまたは1つ以上の前記パルスの結果の所望される値を示す情報を受け取るステップを含み、
前記電源制御信号もしくは前記パルス発生器制御信号またはその両方を、前記所望される値に部分的に基づいて前記コントローラが発生する、方法。 - 前記電源、前記コントローラ、及び前記パルス発生器が、集合的に、1つ以上の前記パルスの前記特性または1つ以上の前記パルスの前記結果に、前記インタフェースによって受け取られた前記情報によって示される前記所望される値にほぼ等しい値を有させるフィードバックループを形成する、請求項20に記載の方法。
- 前記フィードバックループが、
比例積分微分(PID)方法と、
次の制御信号値を決定するためのルックアップテーブルと、
次の制御信号値を固定量により、増加させることまたは減少させることを含んだ方法と、
のうちの少なくとも1つまたはこれらの組合せを使用し、制御される、請求項21に記載の方法。 - 請求項19から22のいずれか1項に記載の方法が、
1以上の電極が、前記パルス発生器から発生した1以上のパルスを受け取るステップと、
前記パルス発生器または前記1以上の電極に配置された電圧センサ、電流センサ、および温度センサのうちの少なくとも1つによって、電流、電圧、および温度のうちの少なくとも1つを測定するステップと、を含む方法。 - 前記1つ以上のパルスが、1ナノ秒の範囲内であることを特徴とする請求項19から23のいずれか1項に記載の方法。
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