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任意波形の電流を出力するための電源装置であって、スイッチング素子を備えた複数のスイッチング電源が負荷と並列に接続され、前記複数のスイッチング電源の出力側にそれぞれ個別に接続されたリアクトルとを備えた電源装置において、前記リアクトルのインダクタンスの値を調整する手段を備えたことを特徴とする電源装置。A power supply device for outputting a current of an arbitrary waveform, the power supply device comprising: a plurality of switching power supplies each having a switching element connected in parallel to a load; and reactors each individually connected to the output side of the plurality of switching power supplies, the power supply device comprising : means for adjusting an inductance value of the reactor.前記リアクトルの調整手段は、前記リアクトルの近傍に配置された導体と、この導体と前記リアクトルとの相対距離を調整する手段を備えた請求項1記載の電源装置。2. The power supply device according to claim 1, wherein the reactor adjustment means comprises a conductor disposed near the reactor and means for adjusting a relative distance between the conductor and the reactor.磁場発生コイル用の電源装置として請求項１、２記載の電源装置を備えたことを特徴とする磁気共鳴イメージング装置。3. A magnetic resonance imaging apparatus comprising the power supply device according to claim 1 or 2 as a power supply device for a magnetic field generating coil.
JP9017636A1997-01-171997-01-17Power supply unit and magnetic resonance imaging system using it
PendingJPH10201732A
(en)