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    • 4. 发明申请
    • GRADIENT FIELD POWER SUPPLY AND MAGNETIC RESONANCE IMAGING APPARATUS
    • 梯级电源和磁共振成像装置
    • US20110187370A1
    • 2011-08-04
    • US13016036
    • 2011-01-28
    • Masashi HoriMotohiro MiuraKazuhiro Hamaya
    • Masashi HoriMotohiro MiuraKazuhiro Hamaya
    • G01R33/44
    • G01R33/44
    • According to one embodiment, there is provided a magnetic resonance imaging apparatus in which a gradient field power supply apparatus supplies currents to gradient field coils corresponding to spatial coordinate axis directions to form gradient fields in a static field space which change along the respective spatial coordinate axis directions, the gradient field power supply apparatus includes a transformer configured to supply power supplied to a primary winding to a current output circuit via a plurality of secondary windings, with the number of phases of the primary windings being equal to or a multiple of the number of phases of the secondary windings, and the secondary windings of the respective phases of output channels corresponding to the respective spatial coordinate axis directions being wound around the primary windings of the respective phases.
    • 根据一个实施例,提供了一种磁共振成像装置,其中梯度场电源装置向对应于空间坐标轴方向的梯度场线圈提供电流,以在静态场空间中形成梯度场,其沿着相应的空间坐标轴 梯度场电源装置包括:变压器,被配置为通过多个次级绕组向初级绕组提供供给到电流输出电路的电力,其中初级绕组的相数等于或数量的倍数 次级绕组的相位和对应于各个空间坐标轴方向的输出通道的各相的次级绕组缠绕在各相的初级绕组上。