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1. 发明申请

US20100045113A1 POWER SOURCE DEVICE AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME 有权
标题翻译：电源装置和磁共振成像装置
公开(公告)号：US20100045113A1
公开(公告)日：2010-02-25
申请号：US11993818
申请日：2006-06-30
申请人： Shingo Hishikawa , Takuya Domoto
发明人： Shingo Hishikawa , Takuya Domoto
IPC分类号： H02J3/00
CPC分类号： H02M7/483 , G01R33/3614 , G01R33/383 , G01R33/3852 , Y10T307/297 , Y10T307/685
摘要： A DC high voltage power source is constituted by an AC-DC converting means (4, 6) that converts a voltage of a commercial AC power source (3) to a DC voltage and steps up the converted DC voltage, a DC-AC converting means (7) that converts the DC voltage stepped up by the previous means to an AC voltage, two insulating transformer (8, 9) that steps up the AC voltage converted by the previous converting means while insulating each others and a series connection of DC voltages obtained after converting the output voltages from the transformers to DCs and smoothing the same. The DC voltage of the DC high voltage power source is used as the power source to current amplifiers (19, 20, 21) constituted by a multi level PWM inverter circuit (18) of 3 levels and the currents flowing through X axis, Y axis and Z axis gradient magnetic field coil (15, 16, 17) in an MRI apparatus connected to these current amplifiers as loads are controlled by a switching control device (18q) so as to meet with current command values (22c1, 22c2, 22c3) from a sequencer 22 in the MRI apparatus. As a result, plural DC high voltage power sources necessary for the multi level PWM inverter is constituted by a comparatively simple circuit, in addition, while suppressing loss in the power sources, a small sized and highly accurate high voltage and large current power source device and a magnetic resonance imaging apparatus using the same are provided.
摘要翻译：直流高压电源由将商用交流电源（3）的电压转换为直流电压并升压转换的直流电压的交流 - 直流转换装置（4,6）构成，直流 - 交流转换将由先前装置升压的直流电压转换为交流电压的装置（7），两个绝缘变压器（8,9），其将由先前的转换装置转换的交流电压升高，同时绝缘，并串联DC 在将变压器的输出电压转换为DC并使其平滑化之后获得的电压。直流高压电源的直流电压用作由三电平的多电平PWM逆变器电路（18）构成的电流放大器（19,20,21）的电源，并且流过X轴，Y轴的电流和与这些电流放大器连接的MRI装置中的Z轴倾斜磁场线圈（15,16,17），由开关控制装置（18q）控制，以满足电流指令值（22c1,22c2,22c3）来自MRI装置中的定序器22。结果，多电平PWM逆变器所需的多个直流高压电源由比较简单的电路构成，另外，在抑制电源的损耗的同时，小型化，高精度的高电压和大电流电源装置并提供使用该磁共振成像装置的磁共振成像装置。

2. 发明授权

US07928600B2 Power source device and magnetic resonance imaging apparatus using the same 有权
标题翻译：电源装置和使用其的磁共振成像装置
公开(公告)号：US07928600B2
公开(公告)日：2011-04-19
申请号：US11993818
申请日：2006-06-30
申请人： Shingo Hishikawa , Takuya Domoto
发明人： Shingo Hishikawa , Takuya Domoto
IPC分类号： H02J3/00
CPC分类号： H02M7/483 , G01R33/3614 , G01R33/383 , G01R33/3852 , Y10T307/297 , Y10T307/685
摘要： A DC high voltage power source is constituted by an AC-DC converting means (4, 6) that converts a voltage of a commercial AC power source (3) to a DC voltage and steps up the converted DC voltage, a DC-AC converting means (7) that converts the DC voltage stepped up by the previous means to an AC voltage, two insulating transformer (8, 9) that steps up the AC voltage converted by the previous converting means while insulating each others and a series connection of DC voltages obtained after converting the output voltages from the transformers to DCs and smoothing the same. The DC voltage of the DC high voltage power source is used as the power source to current amplifiers (19, 20, 21) constituted by a multi level PWM inverter circuit (18) of 3 levels and the currents flowing through X axis, Y axis and Z axis gradient magnetic field coil (15, 16, 17) in an MRI apparatus connected to these current amplifiers as loads are controlled by a switching control device (18q) so as to meet with current command values (22c1, 22c2, 22c3) from a sequencer 22 in the MRI apparatus. As a result, plural DC high voltage power sources necessary for the multi level PWM inverter is constituted by a comparatively simple circuit, in addition, while suppressing loss in the power sources, a small sized and highly accurate high voltage and large current power source device and a magnetic resonance imaging apparatus using the same are provided.
摘要翻译：直流高压电源由将商用交流电源（3）的电压转换为直流电压并升压转换的直流电压的交流 - 直流转换装置（4,6）构成，直流 - 交流转换将由先前装置升压的直流电压转换为交流电压的装置（7），两个绝缘变压器（8,9），其将由先前的转换装置转换的交流电压升高，同时绝缘，并串联DC 在将变压器的输出电压转换为DC并使其平滑化之后获得的电压。直流高压电源的直流电压用作由三电平的多电平PWM逆变器电路（18）构成的电流放大器（19,20,21）的电源，并且流过X轴，Y轴的电流和与这些电流放大器连接的MRI装置中的Z轴倾斜磁场线圈（15,16,17），由开关控制装置（18q）控制，以满足电流指令值（22c1,22c2,22c3）来自MRI装置中的定序器22。结果，多电平PWM逆变器所需的多个直流高压电源由比较简单的电路构成，另外，在抑制电源的损耗的同时，小型化，高精度的高电压和大电流电源装置并提供使用该磁共振成像装置的磁共振成像装置。

3. 发明申请

US20130243161A1 ANODE ROTATIONAL DRIVE DEVICE AND X-RAY IMAGING APPARATUS 有权
标题翻译：阳极旋转驱动装置和X射线成像装置
公开(公告)号：US20130243161A1
公开(公告)日：2013-09-19
申请号：US13988769
申请日：2011-11-30
申请人： Shingo Hishikawa
发明人： Shingo Hishikawa
IPC分类号： H05G1/66
CPC分类号： H05G1/66 , G08C19/46 , G08C19/48 , H01H33/593 , H01J35/10 , H02K37/08 , H02P3/20 , H02P4/00 , H05G1/10
摘要： In order to provide an X-ray imaging apparatus including a two-phase anode rotation mechanism driving circuit having a small and light configuration, one end of the main stator coil is connected to a three-phase full-bridge inverter circuit and the midpoint between two semiconductor switches of the first arm, one end of the auxiliary stator coil is connected to the midpoint between two semiconductor switches of the second arm, and the other ends of the main stator coil and the auxiliary stator coil are connected to the midpoint between two semiconductor switches of the third arm. The semiconductor switches are switched using an inverting circuit and a delay circuit so that a first AC voltage is supplied to the one end of the main stator coil and a second AC voltage, which is shifted in phase by 90° from the first AC voltage, is supplied to the one end of the auxiliary stator coil.
摘要翻译：为了提供一种X射线摄像装置，包括具有小而轻型构造的两相阳极旋转机构驱动电路，主定子线圈的一端与三相全桥逆变电路连接，第一臂的两个半导体开关，辅助定子线圈的一端连接到第二臂的两个半导体开关之间的中点，并且主定子线圈和辅助定子线圈的另一端连接到两个第二臂之间的中点第三臂的半导体开关。使用反相电路和延迟电路来切换半导体开关，使得第一AC电压被提供给主定子线圈的一端和从第一AC电压相位偏移90°的第二AC电压，被提供给辅助定子线圈的一端。

4. 发明授权

US09107280B2 Anode rotational drive device and X-ray imaging apparatus 有权
标题翻译：阳极旋转驱动装置和X射线成像装置
公开(公告)号：US09107280B2
公开(公告)日：2015-08-11
申请号：US13988769
申请日：2011-11-30
申请人： Shingo Hishikawa
发明人： Shingo Hishikawa
IPC分类号： H05G1/18 , H01J35/10 , G08C19/46 , G08C19/48 , H02P3/20 , H02P4/00 , H02K37/08 , H05G1/66 , H01H33/59 , H05G1/10
CPC分类号： H05G1/66 , G08C19/46 , G08C19/48 , H01H33/593 , H01J35/10 , H02K37/08 , H02P3/20 , H02P4/00 , H05G1/10
摘要： In order to provide an X-ray imaging apparatus including a two-phase anode rotation mechanism driving circuit having a small and light configuration, one end of the main stator coil is connected to a three-phase full-bridge inverter circuit and the midpoint between two semiconductor switches of the first arm, one end of the auxiliary stator coil is connected to the midpoint between two semiconductor switches of the second arm, and the other ends of the main stator coil and the auxiliary stator coil are connected to the midpoint between two semiconductor switches of the third arm. The semiconductor switches are switched using an inverting circuit and a delay circuit so that a first AC voltage is supplied to the one end of the main stator coil and a second AC voltage, which is shifted in phase by 90° from the first AC voltage, is supplied to the one end of the auxiliary stator coil.
摘要翻译：为了提供一种X射线摄像装置，包括具有小而轻型构造的两相阳极旋转机构驱动电路，主定子线圈的一端与三相全桥逆变电路连接，第一臂的两个半导体开关，辅助定子线圈的一端连接到第二臂的两个半导体开关之间的中点，并且主定子线圈和辅助定子线圈的另一端连接到两个第二臂之间的中点第三臂的半导体开关。使用反相电路和延迟电路来切换半导体开关，使得第一AC电压被提供给主定子线圈的一端和从第一AC电压相位偏移90°的第二AC电压，被提供给辅助定子线圈的一端。

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