JP7379377B2 - パルス電界アブレーションによって誘導される高電圧ノイズをフィルタリングするためのシステム、装置、および方法 - Google Patents
パルス電界アブレーションによって誘導される高電圧ノイズをフィルタリングするためのシステム、装置、および方法 Download PDFInfo
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Description
[0001] 本出願は、2018年5月7日出願の米国仮出願第62/667,887号の利益を主張し、その開示全体は、参照することによってその全体が本明細書に組み込まれる。
[0058] 本明細書に開示するのは、電圧パルス波形の選択的で迅速な印加による組織アブレーションに関連して、誘導電流を抑制するために構成されるシステムおよびデバイスであり、不可逆的電気穿孔をもたらす。概して、本明細書に記載する、組織をアブレーションするためのシステムは、ペーシングデバイスによって心臓へ送達される心臓ペーシング信号を生成するための、心臓刺激装置を含んでもよい。心臓ペーシング信号を使用して、信号発生器によって生成されるパルス波形の送達を同期し、1つ以上の電極を有するアブレーションデバイスを使用して、パルス波形を送達する。心臓での用途について本明細書に記載するように、システムおよびデバイスが、心外膜および/または心内膜に配備されてもよい。陽極および陰極の電極選択に対する、独立したサブセットの選択により、電圧を選択される電極のサブセットに印加してもよい。
[0059] 図12は、心臓(1201)に配置されるペーシングデバイス(1207)と、アブレーションデバイス(1212)とを含む、電気穿孔システムの実施形態の概略図である。ペーシングデバイス(1207)が、心臓活動を測定し、および/またはペーシング信号を心臓(1201)へ送達するように構成されてもよく、アブレーションデバイス(1212)が、パルス波形を受信し、および/または心組織へ送達するように構成されてもよい。例えば、図12は、心臓(1201)の前方断面を概略的に示し、直線(1202)は、右心室RV(1215)および左心房LA(1214)を含む4つの心腔の境界に、図式化して近似する。ペーシングデバイス(1207)は、右心室(1215)の中に導入され、右心室(1215)を刺激し、ペーシング捕捉を取得できるように位置づけられうる。ペーシングデバイス(1207)が、ペーシングおよび/または信号電極(1209)を備えてもよい。ペーシング電極(1209)が、バイポーラ対として右心室(1215)をペーシングするように構成されてもよく、心臓刺激装置(1260)に結合されてもよい。信号電極(1209)が、心臓(1201)の内部活動(例えば、ECG信号)を測定するように構成される、センサーとして構成されてもよい。アブレーションデバイス(1212)が、信号発生器(1250)に結合するように構成されてもよい。信号発生器(1250)が、例えば、心臓組織(1201)など、組織の不可逆的電気穿孔用のパルス波形を生成するように構成されてもよい。
[0064] 信号発生器(110)は、例えば、心臓組織など、組織の不可逆的電気穿孔用のパルス波形を生成するように構成されてもよい。信号発生器(110)が、電圧パルス波形発生器であり、アブレーションデバイス(140)の電極(142a、142b、…、142n)のセットへパルス波形を送達してもよい。信号発生器(110)が、高周波(RF)、直流(DC)インパルス(電気穿孔に使用される高電圧、超短パルスなど)、刺激範囲インパルス、および/またはハイブリッド電気インパルスを含むが、これらに限定されない、いくつかのタイプの信号を生成および送達してもよい。例えば、信号発生器(110)が、単相(DC)パルスおよび二相(DCおよびAC)パルスを生成してもよい。信号発生器(110)が、プロセッサ(120)、メモリ(122)、電極チャネル(124a、124b、…、124n)のセット、エネルギー源(126)、検知回路(128)、ルーティングコンソール(130)、およびユーザインターフェース(132)を含んでもよい。1つ以上の信号発生器の構成要素が、通信バスを使用して結合されてもよい。プロセッサ(120)が、メモリ(122)、電極チャネル(124)、エネルギー源(126)、検知回路(128)、ルーティングコンソール(130)、ユーザインターフェース(132)、アブレーションデバイス(140)、および心臓刺激装置(150)のうちの1つ以上から受信したデータを組み込んで、信号発生器(110)によって生成される、電圧パルス波形のパラメータ(例えば、振幅、幅、デューティサイクル、タイミングなど)を決定してもよい。メモリ(122)がさらに、パルス波形生成および送達、電極チャネル構成、不具合検査、エネルギー放出、ならびに/または心臓ペーシングの同期など、システム(100)に関連するモジュール、プロセス、および/または機能を、プロセッサ(120)に実行させる命令を記憶してもよい。例えば、メモリ(122)が、陽極/陰極構成データ、電極チャネル構成データ、パルス波形データ、不具合データ、エネルギー放出データ、心臓ペーシングデータ、患者データ、臨床データ、手順データ、および/または同類のものを記憶するように構成されてもよい。
アブレーションデバイス
[0111] 概して、組織アブレーションに関連して誘導電流を抑制するために構成される、システムおよびデバイスが、第1の電子デバイス(例えば、ペーシングデバイス)と、第2の電子デバイス(例えば、保護される装置)との間に結合される保護デバイスを含んでもよい。本明細書でより詳細に説明するように、第1の電子デバイスに誘導される電圧および電流を抑制するように構成される、保護デバイス。誘導電流が、コモンモード電流および差動モード電流のうちの1つ以上を含んでもよい。いくつかの実施形態では、保護デバイスが、誘導電流を抑制するように構成される1つ以上のトランスおよびコンデンサと、誘導電圧を分流するように構成される1つ以上のダイオードとを含んでもよい。いくつかの実施形態では、保護デバイスが、所定の周波数範囲で、第1の電子デバイスに誘導される交流を抑制するように構成される、1つ以上のインダクタを含んでもよい。いくつかの実施形態では、保護デバイスが、所定の周波数範囲のセットにわたって、第1の電子デバイスに誘導されるコモンモード電流を抑制するように構成される、1つ以上のバラン回路を含んでもよい。いくつかの実施形態では、保護デバイスが、装置およびペーシングデバイスとは別個に形成されてもよい。いくつかの実施形態では、1つ以上の保護デバイスが、装置およびペーシングデバイスのうちの1つ以上と統合して形成されてもよい。
方法
パルス波形
以下に、本開示に含まれる技術思想を付記として記載する。
[付記1]
対象の組織近くに配置可能な電極のセットと、
電圧パルス波形を生成するように構成される、信号発生器であって、前記信号発生器が、前記電極のセットに結合可能であり、前記電圧パルス波形を前記電極のセットへ送達して、前記組織をアブレーションするように構成され、前記電極のセットが、前記電圧パルス波形の受信に応答して、前記組織近くに配置される第1の電子デバイスに、電流を誘導するように構成される、信号発生器と、
前記第1の電子デバイスと第2の電子デバイスとの間に結合可能な保護デバイスであって、前記第1の電子デバイスに誘導される前記電流を減少させるように構成される、保護デバイスと、を備えるシステム。
[付記2]
前記第1の電子デバイスが、リードのセットを含むペーシングデバイスであり、前記第2の電子デバイスが、ペーシング信号を前記ペーシングデバイスへ送達するように構成される、心臓刺激装置である、付記1に記載のシステム。
[付記3]
前記第1の電子デバイスに誘導される前記電流が、コモンモード電流または差動モード電流のうちの1つ以上を含み、
前記保護デバイスが、前記コモンモード電流または前記差動モード電流を減少させるように構成される、1つ以上のトランスを含む、付記1~2のいずれか1つに記載のシステム。
[付記4]
前記1つ以上のトランスの各トランスが、トロイドコアと、前記トロイドコアの第1の部分の周りに第1の巻線と、前記トロイドコアの第2の部分の周りに第2の巻線とを含む、付記3に記載のシステム。
[付記5]
前記保護デバイスが、所定の周波数を上回る電流を分流して、前記第1の電子デバイスに誘導される前記電流を減少させるように構成される、1つ以上のコンデンサを含む、付記1~4のいずれか1つに記載のシステム。
[付記6]
前記保護デバイスが、前記第2の電子デバイスから離れて高電圧を分流するように構成される、1つ以上のダイオードを含む、付記1~5のいずれか1つに記載のシステム。
[付記7]
前記保護デバイスが、前記第1の電子デバイスに誘導される交流を減少させるように構成される、1つ以上のインダクタを含む、付記1~6のいずれか1つに記載のシステム。
[付記8]
前記1つ以上のインダクタが、前記第1の電子デバイスの第1のリードに結合される第1のインダクタと、前記第1の電子デバイスの第2のリードに結合される第2のインダクタとを含み、前記第1および第2のインダクタが、前記第1および第2のリードに誘導される交流を減少させるように構成される、付記7に記載のシステム。
[付記9]
前記保護デバイスが、
所定の周波数を上回る電圧を短絡させるように各々構成される、第1および第2のコンデンサと、
前記第1の電子デバイスと前記第1のコンデンサとの間に結合される、第1のトランスと、
前記第1のコンデンサと前記第2のコンデンサとの間に結合される第2のトランスであって、前記第1および第2のトランスが、前記第1の電子デバイスに誘導される、コモンモード電流または差動モード電流を減少させるように構成される、第2のトランスと、
前記第2のコンデンサと並列に配列され、前記第2の電子デバイスに結合される、ダイオードのセットであって、前記第2の電子デバイスから離れて高電圧を分流するように構成される、ダイオードのセットと、を含む、付記1または2に記載のシステム。
[付記10]
前記第1および第2のトランスが各々、前記第1の電子デバイスに誘導されるコモンモード電流を減少させるように構成される、コモンモードトランスである、付記9に記載のシステム。
[付記11]
前記第1および第2のトランスの一方が、前記第1の電子デバイスに誘導される差動モード電流を減少させるように構成される、差動モードトランスであり、前記第1および第2のトランスの他方が、前記第1の電子デバイスに誘導されるコモンモード電流を減少させるように構成される、コモンモードトランスである、付記9に記載のシステム。
[付記12]
前記保護デバイスが、所定の周波数範囲にわたって、前記第1の電子デバイスに誘導されるコモンモード電流を減少させるように構成される、1つ以上のバラン回路を含む、付記1または2に記載のシステム。
[付記13]
前記1つ以上のバラン回路が、所定の周波数範囲のセットのうちの所定の周波数範囲にわたって、前記第1の電子デバイスに誘導されるコモンモード電流を減少させるように各々構成される、複数のバラン回路を含み、前記所定の周波数範囲のセットの各所定の周波数範囲が、前記所定の周波数範囲のセットのうちの少なくとも1つの他の所定の周波数範囲に少なくとも一部重なる、付記12に記載のシステム。
[付記14]
前記保護デバイスが、前記第1の電子デバイスに誘導される交流を減少させるように構成される、1つ以上のインダクタを含み、前記1つ以上のバラン回路が、前記1つ以上のインダクタと前記第2の電子デバイスとの間に結合される、付記12または13に記載のシステム。
[付記15]
前記1つ以上のバラン回路のうちの少なくとも1つのバラン回路が、コンデンサおよび抵抗器と並列なインダクタを含む、付記12~14のいずれか1つに記載のシステム。
[付記16]
前記1つ以上のバラン回路のうちの少なくとも1つのバラン回路が、第1および第2の導体を含む、同軸ケーブル巻線を含み、前記第1の導体が、前記第1の電子デバイスの第1のリードに結合され、前記第2の導体が、前記第1の電子デバイスの第2のリードに結合される、付記12~15のいずれか1つに記載のシステム。
[付記17]
前記1つ以上のバラン回路が、直列に接続される複数のバラン回路を含む、付記12~16のいずれか1つに記載のシステム。
[付記18]
前記保護デバイスがさらに、前記第1の電子デバイスと前記信号発生器との間に結合される、付記1~17のいずれか1つに記載のシステム。
[付記19]
前記保護デバイスが、前記信号発生器および前記第2の電子デバイスのうちの少なくとも1つに統合される、付記1~18のいずれか1つに記載のシステム。
[付記20]
第1の電子デバイスと第2の電子デバイスとの間に結合可能な保護デバイスを備え、前記第1の電子デバイスが、組織近くの電極のセットへ送達される電圧パルス波形によって、前記第1の電子デバイスに電流を誘導できるように、対象の組織近くに配置可能であり、前記保護デバイスが、
所定の周波数を上回る電流を分流して、前記第1の電子デバイスに誘導される前記電
流を減少させるように各々構成される、コンデンサのセットと、
前記第1の電子デバイスに誘導される前記電流のうちの、コモンモード電流または差動モード電流を減少させるように各々構成される、トランスのセットと、
前記第2の電子デバイスから離れて高電圧を分流するように構成される、ダイオードのセットと、を含む、装置。
[付記21]
前記電圧パルス波形を生成するように構成される、信号発生器であって、前記電極のセットに結合され、前記電圧パルス波形を前記電極のセットへ送達するように構成される、信号発生器をさらに備える、付記20に記載の装置。
[付記22]
ペーシング信号を前記第1の電子デバイスへ送達するように構成される、心臓刺激装置であって、前記第2の電子デバイスである、心臓刺激装置をさらに備える、付記20または21に記載の装置。
[付記23]
前記第1の電子デバイスが、リードのセットを含むペーシングデバイスであり、前記第2の電子デバイスが、ペーシング信号を前記ペーシングデバイスへ送達するように構成される、心臓刺激装置である、付記20または21に記載の装置。
[付記24]
前記1つ以上のトランスの各トランスが、トロイドコアと、前記トロイドコアの第1の部分の周りに第1の巻線と、前記トロイドコアの第2の部分の周りに第2の巻線とを含む、付記20~23のいずれか1つに記載の装置。
[付記25]
前記1つ以上のトランスの各トランスの前記トロイドコアが、5以下のアスペクト比を有する積層のセットを含む、付記24に記載の装置。
[付記26]
前記1つ以上のトランスの各トランスの前記トロイドコアが、第1の方向で前記トロイドコアの中心軸に巻きつく、前記1つ以上のトランスの各トランスの前記第1の巻線と、前記第1の方向と反対の第2の方向で前記中心軸に巻きつく、前記1つ以上のトランスの各トランスの前記第2の巻線とによって、前記中心軸を画定する、付記24または25に記載の装置。
[付記27]
前記1つ以上のトランスの各トランスの前記トロイドコアの外半径は、約4cmと約10cmとの間であり、前記1つ以上のトランスの各トランスの前記トロイドコアの内半径は、約2cmと約9cmとの間である、付記24~26のいずれか1つに記載の装置。
[付記28]
前記1つ以上のトランスの各トランスの前記トロイドコアの厚さは、約1cmと約6cmとの間である、付記24~27のいずれか1つに記載の装置。
[付記29]
前記1つ以上のトランスの各トランスが、少なくとも約1ミリヘンリーのインダクタンス、および少なくとも約500オームの抵抗を含む、付記20~28のいずれか1つに記載の装置。
[付記30]
前記ダイオードのセットの各ダイオードが、ツェナーダイオードである、付記20~29のいずれか1つに記載の装置。
[付記31]
前記ダイオードのセットが、直列に配列され反対方向を向く、第1および第2のダイオードを含む、付記20~30のいずれか1つに記載の装置。
[付記32]
前記ダイオードのセットが、前記コンデンサのセットのうちの少なくとも1つのコンデンサと並列に配列される、付記20~31のいずれか1つに記載の装置。
[付記33]
前記コンデンサのセットが、第1および第2のコンデンサを含み、
前記トランスのセットが、
前記第1の電子デバイスと前記第1のコンデンサとの間に結合される、第1のトランスと、
前記第1のコンデンサと前記第2のコンデンサとの間に結合される、第2のトランスと、
を含み、
前記ダイオードのセットが、前記第2の電子デバイスに結合される、第1および第2のダイオードを含む、付記20のいずれか1つに記載の装置。
[付記34]
前記第1および第2のトランスが各々、前記第1の電子デバイスに誘導される前記電流のうちのコモンモード電流を減少させるように構成される、コモンモードトランスである、付記33に記載の装置。
[付記35]
前記第1および第2のトランスの一方が、前記第1の電子デバイスに誘導される前記電流のうちの差動モード電流を減少させるように構成される、差動モードトランスであり、前記第1および第2のトランスの他方が、前記第1の電子デバイスに誘導される前記電流のうちのコモンモード電流を減少させるように構成される、コモンモードトランスである、付記33に記載の装置。
[付記36]
前記保護デバイスが、前記第1の電子デバイスに誘導される交流を減少させるように構成される、1つ以上のインダクタを含む、付記20~35のいずれか1つに記載の装置。
[付記37]
第1の電子デバイスと第2の電子デバイスとの間に結合可能な保護デバイスを備え、前記第1の電子デバイスが、組織近くの電極のセットへ送達される電圧パルス波形によって、前記第1の電子デバイスに電流を誘導できるように、対象の組織近くに配置可能であり、前記保護デバイスが、
直列に接続され、所定の周波数範囲のセットにわたって、前記第1の電子デバイスに誘導される前記電流を減少させるように共同で構成される、バラン回路のセットを含む、装置。
[付記38]
前記電圧パルス波形を生成するように構成される、信号発生器であって、前記電極のセットに結合され、前記電圧パルス波形を前記電極のセットへ送達するように構成される、信号発生器をさらに備える、付記37に記載の装置。
[付記39]
ペーシング信号を前記第1の電子デバイスへ送達するように構成される、心臓刺激装置であって、前記第2の電子デバイスである、心臓刺激装置をさらに備える、付記37または38に記載の装置。
[付記40]
前記第1の電子デバイスが、リードのセットを含むペーシングデバイスであり、前記第2の電子デバイスが、ペーシング信号を前記ペーシングデバイスへ送達するように構成される、心臓刺激装置である、付記37または38に記載の装置。
[付記41]
前記所定の周波数範囲のセットの各所定の周波数範囲が、前記所定の周波数範囲のセットのうちの少なくとも1つの他の所定の周波数範囲に、少なくとも一部重なる、付記37~40のいずれか1つに記載の装置。
[付記42]
前記所定の周波数範囲のセットの各所定の周波数範囲が、前記バラン回路のセットのうちのバラン回路に関連する共振ピークを有する、付記37~41のいずれか1つに記載の装置。
[付記43]
前記保護デバイスがさらに、前記第1の電子デバイスに誘導される前記電流のうちの交流を減少させるように構成される、1つ以上のインダクタを含む、付記37~41のいずれか1つに記載の装置。
[付記44]
前記バラン回路のセットが、前記1つ以上のインダクタと前記第1の電子デバイスとの間に結合される、付記42に記載の装置。
[付記45]
前記1つ以上のインダクタが、インダクタの第1および第2のセットを含み、
前記インダクタの第1のセットが、前記バラン回路のセットと前記第1の電子デバイスとの間に結合され、
前記インダクタの第2のセットが、前記バラン回路のセットと前記第2の電子デバイスとの間に結合される、付記42に記載の装置。
[付記46]
前記バラン回路のセットのうちの少なくとも1つのバラン回路が、コンデンサおよび抵抗器と並列なインダクタを含む、付記37~44のいずれか1つに記載の装置。
[付記47]
前記バラン回路のセットのうちの少なくとも1つのバラン回路が、第1および第2の導体を含む、同軸ケーブル巻線を含み、前記第1の導体が、前記第1の電子デバイスの第1のリードに結合され、前記第2の導体が、前記第1の電子デバイスの第2のリードに結合される、付記37~45のいずれか1つに記載の装置。
[付記48]
心臓の心組織近くに位置づけられるペーシングデバイスを使用して、ペーシング信号を前記心臓へ送達することと、
信号発生器を使用して、組織近くに位置づけられるアブレーションデバイスへ、電圧パルス波形を送達して、前記組織をアブレーションすることと、
前記電圧パルス波形の送達に応答して、前記心組織近くに位置づけられる第1の電子デバイスのセットに、電流を誘導することであって、前記第1の電子デバイスのセットが、前記ペーシングデバイスを含むことと、
前記第1の電子デバイスのセットと第2の電子デバイスとの間に結合される保護デバイスを使用して、前記第1の電子デバイスのセットに誘導される前記電流を減少させることと、を含む、方法。
[付記49]
前記第2の電子デバイスが、前記ペーシング信号を生成するように構成される心臓刺激装置である、付記49に記載の方法。
[付記50]
前記第2の電子デバイスが、心電図(ECG)記録システムである、付記49に記載の方法。
[付記51]
前記保護デバイスを使用して、前記第1の電子デバイスのセットに誘導される前記電流を減少させることが、前記保護デバイスの1つ以上のトランスまたはコンデンサを使用して、前記第1の電子デバイスのセットに誘導される前記電流のうちのコモンモード電流または差動モード電流を減少させることを含む、付記48~50のいずれか1つに記載の方法。
[付記52]
前記保護デバイスを使用して、前記第1の電子デバイスのセットに誘導される前記電流を減少させることが、前記保護デバイスのダイオードのセットを使用して、前記第2の電子デバイスから離れて高電圧を分流することを含む、付記48~51のいずれか1つに
記載の方法。
[付記53]
前記保護デバイスを使用して、前記第1の電子デバイスのセットに誘導される前記電流を減少させることが、前記保護デバイスのバラン回路の1つ以上のインダクタを使用して、前記第1の電子デバイスのセットに誘導される前記電流の周波数の所定範囲内の周波数を有する交流を減少させることを含む、付記48~52のいずれか1つに記載の方法。
Claims (16)
- 第1の電子デバイスと第2の電子デバイスとの間に結合可能な保護デバイスを備え、前記第1の電子デバイスが、組織近くの1つ以上の電極へ送達される電圧パルス波形によって、前記第1の電子デバイスに電流を誘導できるように、対象の組織近くに配置可能であり、前記保護デバイスが、
所定の周波数を上回る電流を分流して、前記第1の電子デバイスに誘導される前記電流を減少させるように各々構成される、第1のコンデンサおよび第2のコンデンサと、
前記第1の電子デバイスに誘導される前記電流のうちの、コモンモード電流または差動モード電流を減少させるように各々構成される、第1のトランスおよび第2のトランスであって、前記第1のトランスは、前記第1の電子デバイスと前記第1のコンデンサとの間に結合され、前記第2のトランスは、前記第1のコンデンサと前記第2のコンデンサとの間に結合されている、第1のトランスおよび第2のトランスと、
前記第2の電子デバイスから離れて高電圧を分流するように構成される、第1のダイオードおよび第2のダイオードと、を含む、装置。 - 前記電圧パルス波形を生成するように構成される、信号発生器であって、前記1つ以上の電極に結合され、前記電圧パルス波形を前記1つ以上の電極へ送達するように構成される、信号発生器をさらに備える、請求項1に記載の装置。
- ペーシング信号を前記第1の電子デバイスへ送達するように構成される、心臓刺激装置であって、前記第2の電子デバイスである、心臓刺激装置をさらに備える、請求項1に記載の装置。
- 前記第1の電子デバイスが、第1のリードおよび第2のリードを含むペーシングデバイスであり、前記第2の電子デバイスが、ペーシング信号を前記ペーシングデバイスへ送達するように構成される、心臓刺激装置である、請求項1に記載の装置。
- 前記第1のトランスおよび前記第2のトランスが各々、トロイドコアと、前記トロイドコアの第1の部分の周りに第1の巻線と、前記トロイドコアの第2の部分の周りに第2の巻線とを含む、請求項1に記載の装置。
- 前記第1のトランスおよび前記第2のトランスの各々の前記トロイドコアが、5以下のアスペクト比を有する積層のセットを含む、請求項5に記載の装置。
- 前記第1のトランスおよび前記第2のトランスの各々の前記トロイドコアが、第1の方向で前記トロイドコアの中心軸に巻きつく、前記第1のトランスおよび前記第2のトランスの各々の前記第1の巻線と、前記第1の方向と反対の第2の方向で前記中心軸に巻きつく、前記第1のトランスおよび前記第2のトランスの各々の前記第2の巻線とによって、前記中心軸を画定する、請求項5に記載の装置。
- 前記第1のトランスおよび前記第2のトランスの各々の前記トロイドコアの外半径は、4cmと10cmとの間であり、前記第1のトランスおよび前記第2のトランスの各々の前記トロイドコアの内半径は、2cmと9cmとの間である、請求項5に記載の装置。
- 前記第1のトランスおよび前記第2のトランスの各々の前記トロイドコアの厚さは、1cmと6cmとの間である、請求項5に記載の装置。
- 前記第1のトランスおよび前記第2のトランスの各々が、少なくとも1ミリヘンリーのインダクタンス、および少なくとも500オームの抵抗を含む、請求項1に記載の装置。
- 前記第1のダイオードおよび前記第2のダイオードの各々が、ツェナーダイオードである、請求項1に記載の装置。
- 前記第1のダイオードおよび前記第2のダイオードが、直列に配列され反対方向を向いている、請求項1に記載の装置。
- 前記第1のダイオードおよび前記第2のダイオードが、前記第1のコンデンサおよび前記第2のコンデンサのうちの少なくとも1つと並列に配列される、請求項1に記載の装置。
- 前記第1および第2のトランスが各々、前記第1の電子デバイスに誘導される前記電流のうちのコモンモード電流を減少させるように構成される、コモンモードトランスである、請求項1に記載の装置。
- 前記第1および第2のトランスの一方が、前記第1の電子デバイスに誘導される前記電流のうちの差動モード電流を減少させるように構成される、差動モードトランスであり、前記第1および第2のトランスの他方が、前記第1の電子デバイスに誘導される前記電流のうちのコモンモード電流を減少させるように構成される、コモンモードトランスである、請求項1に記載の装置。
- 前記保護デバイスが、前記第1の電子デバイスに誘導される交流を減少させるように構成される、1つ以上のインダクタを含む、請求項1に記載の装置。
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