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    Magnetic-balance-system current sensor
    1.
    发明授权
    Magnetic-balance-system current sensor 有权
    磁平衡系统电流传感器

    公开(公告)号：US08519704B2

    公开(公告)日：2013-08-27

    申请号：US13300076

    申请日：2011-11-18

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Naoki Sakatsume ,  Kenji Ichinohe ,  Yoshihiro Nishiyama ,  Tatsuya Kogure ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Naoki Sakatsume ,  Kenji Ichinohe ,  Yoshihiro Nishiyama ,  Tatsuya Kogure ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205 ,  B82Y25/00 ,  G01R33/093

    摘要： A magnetic-balance-system current sensor includes: a magnetoresistive element, a resistance value of the magnetoresistive element being changed by applying an induction magnetic field generated by a measurement target current; magnetic cores disposed near the magnetoresistive element; a feedback coil disposed near the magnetoresistive element and configured to generate a cancelling magnetic field that cancels out the induction magnetic field; and a magnetic-field detecting bridge circuit having two outputs. The measurement target current is measured on the basis of a current flowing through the feedback coil when the induction magnetic field and the induction magnetic field and the cancelling magnetic field cancel each other out. The feedback coil, the magnetic cores, and the magnetic-field detecting bridge circuit are formed on a same substrate. The feedback coil is of a spiral type, and the magnetic cores are provided above and below the feedback coil.

    摘要翻译： 磁平衡系统电流传感器包括：磁阻元件，通过施加由测量目标电流产生的感应磁场来改变磁阻元件的电阻值; 设置在磁阻元件附近的磁芯; 设置在磁阻元件附近并被配置为产生抵消感应磁场的消除磁场的反馈线圈; 以及具有两个输出的磁场检测桥接电路。 当感应磁场和感应磁场和消除磁场相互抵消时，基于流过反馈线圈的电流来测量测量目标电流。 反馈线圈，磁芯和磁场检测桥式电路形成在同一基板上。 反馈线圈是螺旋型的，并且磁芯设置在反馈线圈的上方和下方。

    Magnetic coupling type isolator
    2.
    发明授权
    Magnetic coupling type isolator 有权
    磁耦合型隔离器

    公开(公告)号：US08437107B2

    公开(公告)日：2013-05-07

    申请号：US12754509

    申请日：2010-04-05

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi ,  Kenji Ichinohe ,  Naoki Sakatsume

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi ,  Kenji Ichinohe ,  Naoki Sakatsume

    IPC分类号： G11B5/39

    CPC分类号： G01R33/098

    摘要： A magnetic coupling type isolator includes: a magnetic field generator for generating an external magnetic field by an input signal; a magnetoresistive element for detecting the external magnetic field and converting the detected magnetic field into an electric signal, the magnetoresistive element being electrically insulated from the magnetic field generator and positioned in a location capable of being magnetically coupled so as to be overlapped with the magnetic field generator as seen in a top plan view; and first and second shield films overlapped with the magnetic field generator and the magnetoresistive element as seen in a top plan view, wherein a distance between the magnetoresistive element and the second shield film is set to 8 to 100 μm.

    摘要翻译： 磁耦合型隔离器包括：用于通过输入信号产生外部磁场的磁场发生器; 磁阻元件，用于检测外部磁场并将检测到的磁场转换成电信号，磁阻元件与磁场发生器电绝缘并且位于能够被磁耦合的位置以与磁场重叠 发电机，如俯视图; 以及第一和第二屏蔽膜，如俯视图所示，与磁场发生器和磁阻元件重叠，其中磁阻元件和第二屏蔽膜之间的距离设定为8至100μm。

    Magnetic coupling type isolator
    3.
    发明授权
    Magnetic coupling type isolator 有权
    磁耦合型隔离器

    公开(公告)号：US08222769B2

    公开(公告)日：2012-07-17

    申请号：US12754529

    申请日：2010-04-05

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi ,  Kenji Ichinohe ,  Naoki Sakatsume

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Tsuyoshi Nojima ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi ,  Kenji Ichinohe ,  Naoki Sakatsume

    IPC分类号： H04B3/00 ,  H01F27/30 ,  H01L29/82

    CPC分类号： G01R33/098

    摘要： A magnetic coupling type isolator includes: a magnetic field generator for generating an external magnetic field by an input signal; a magnetoresistive element for detecting the external magnetic field and converting the detected magnetic field into an electric signal, the magnetoresistive element being electrically insulated from the magnetic field generator and positioned in a location capable of being magnetically coupled so as to be overlapped with the magnetic field generator as seen in a top plan view; first and second shield films overlapped with the magnetic field generator and the magnetoresistive element as seen in a top plan view; and a third shield film disposed to surround the magnetoresistive element.

    摘要翻译： 磁耦合型隔离器包括：用于通过输入信号产生外部磁场的磁场发生器; 磁阻元件，用于检测外部磁场并将检测到的磁场转换成电信号，磁阻元件与磁场发生器电绝缘并且位于能够被磁耦合的位置以与磁场重叠 发电机，如俯视图; 第一和第二屏蔽膜与磁场发生器和磁阻元件重叠，如俯视图所示; 以及设置成围绕所述磁阻元件的第三屏蔽膜。

    Magnetic balance type current sensor
    4.
    发明授权
    Magnetic balance type current sensor 有权
    磁平衡式电流传感器

    公开(公告)号：US08269492B2

    公开(公告)日：2012-09-18

    申请号：US12891550

    申请日：2010-09-27

    申请人： Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Tatsuya Kogure ,  Yosuke Ide ,  Yoshihiro Nishiyama ,  Kenji Ichinohe ,  Naoki Sakatsume ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Hidekazu Kobayashi

    发明人： Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Tatsuya Kogure ,  Yosuke Ide ,  Yoshihiro Nishiyama ,  Kenji Ichinohe ,  Naoki Sakatsume ,  Tsuyoshi Nojima ,  Shigenobu Miyajima ,  Hidekazu Kobayashi

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205 ,  H01L43/08

    摘要： A magnetic balance type current sensor measures a measured current which flows in a feedback coil when electrical conduction is provided by a voltage difference according to an induction magnetic field from the measured current and an equilibrium state is reached in which the induction magnetic field and a cancel magnetic field cancel each other. Sensor elements in a pair are arranged at positions with magnetic field from the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of one sensor element is aligned in a forward direction with respect to the magnetic field formed by the measured current. The magnetization direction of the pinned magnetic layer in the magnetoresistive effect element of the other sensor element is aligned in a reverse direction with respect to the magnetic field formed by the measured current.

    摘要翻译： 磁平衡型电流传感器测量在通过根据来自测量电流的感应磁场的电压差提供电传导时在反馈线圈中流动的测量电流，并且达到平衡状态，其中感应磁场和取消 磁场相互抵消。 一对传感器元件被布置在具有来自测量电流的磁场的位置处。 一个传感器元件的磁阻效应元件中的钉扎磁性层的磁化方向相对于由测量电流形成的磁场在正向方向上排列。 另一传感器元件的磁阻效应元件中的钉扎磁性层的磁化方向相对于由测量电流形成的磁场的反方向排列。

    Magnetic sensor and magnetic balance type current sensor including the same
    6.
    发明授权
    Magnetic sensor and magnetic balance type current sensor including the same 有权
    磁传感器和磁平衡式电流传感器包括相同的

    公开(公告)号：US08476899B2

    公开(公告)日：2013-07-02

    申请号：US13038307

    申请日：2011-03-01

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Kenji Ichinohe ,  Yoshihiro Nishiyama

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Kenji Ichinohe ,  Yoshihiro Nishiyama

    IPC分类号： G01R33/09

    CPC分类号： H01L43/08 ,  G01R15/205 ,  G01R15/207 ,  G01R33/091

    摘要： A magnetic sensor includes a magnetoresistance effect element and a hard bias layer. The magnetoresistance effect element is configured to have a striped form which has a sensitivity axis in a predetermined direction, and configured to have a structure in which a free magnetic layer, in which magnetization varies with respect to an external magnetic field, a non-magnetic layer, and a fixed magnetic layer, in which the magnetization is fixed, are laminated. The hard bias layer is disposed in a longitudinal direction of the striped form, disposed outside of the magnetoresistance effect element to be separated from the magnetoresistance effect element.

    摘要翻译： 磁传感器包括磁阻效应元件和硬偏置层。 磁阻效应元件被配置为具有沿预定方向具有灵敏度轴的条纹形状，并且被配置为具有其中磁化相对于外部磁场变化的自由磁性层，非磁性的结构 层和固定磁化层的固定磁性层。 硬偏置层设置在带状形式的纵向方向上，设置在磁阻效应元件的外侧以与磁阻效应元件分离。

    Current sensor including magnetic detecting element
    7.
    发明授权
    Current sensor including magnetic detecting element 有权
    电流传感器包括磁检测元件

    公开(公告)号：US08395383B2

    公开(公告)日：2013-03-12

    申请号：US13037231

    申请日：2011-02-28

    申请人： Yoshihiro Nishiyama ,  Masamichi Saito ,  Akira Takahashi ,  Yosuke Ide ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    发明人： Yoshihiro Nishiyama ,  Masamichi Saito ,  Akira Takahashi ,  Yosuke Ide ,  Hidekazu Kobayashi ,  Masahiro Iizuka

    IPC分类号： G01R33/09

    CPC分类号： G01R15/205

    摘要： A current sensor includes a magnetic detecting element, a bridge circuit including a plurality of resistance elements, and a feedback coil placed adjacent to the magnetic detecting element and generating a cancelling magnetic field for cancelling the induced magnetic field based on the output from the bridge circuit. The wiring patterns forming the bridge circuit are routed so as not to intersect with each other when seen in a plan view. Only the resistance elements constituting each series circuit of the bridge circuit are connected to each other by the wiring pattern in an enclosed area which encloses each resistance element constituting the bridge circuit, and the wiring pattern branched from the wiring pattern is connected to the terminal which is installed in a quantity of only one, outside the enclosed area.

    摘要翻译： 电流传感器包括磁检测元件，包括多个电阻元件的桥接电路和与磁检测元件相邻放置的反馈线圈，并且基于桥式电路的输出产生抵消感应磁场的消除磁场 。 形成桥接电路的布线图案在平面图中看来彼此不相交。 构成桥式电路的各个串联电路的电阻元件只有封闭在构成桥接电路的各个电阻元件的封闭区域中的布线图案相互连接，从布线图案分支的布线图案与 在封闭区域外部仅安装一个。

    Magnetic coupling-type isolator
    8.
    发明授权
    Magnetic coupling-type isolator 有权
    磁耦合型隔离器

    公开(公告)号：US08270127B2

    公开(公告)日：2012-09-18

    申请号：US13044493

    申请日：2011-03-09

    申请人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi

    发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Yoshihiro Nishiyama ,  Hidekazu Kobayashi

    IPC分类号： G11B5/39

    CPC分类号： H04B5/00 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  H01L27/22 ,  H01L43/08

    摘要： Magnetoresistive effect elements R1 to R4 are a TMR element or CPP-GMR element. A multilayer film forming the magnetoresistive effect elements is formed to have a width dimension T1 and a length dimension L1 perpendicular to the width dimension T1. The length dimension L1 is longer than the width dimension T1. The width dimension of magnetic field generators of the coil is T2. The multilayer film 31 is positioned within the width dimension T3 of 60% in total of 30% each to the width dimension T2 of the magnetic field generators 3 and 4 of the coil in the direction towards both sides from the center of the width dimension T2 when seen in a plan view.

    摘要翻译： 磁阻效应元件R1至R4是TMR元件或CPP-GMR元件。 形成磁阻效应元件的多层膜被形成为具有垂直于宽度尺寸T1的宽度尺寸T1和长度尺寸L1。 长度尺寸L1比宽度尺寸T1长。 线圈的磁场发生器的宽度尺寸为T2。 多层膜31在从宽度尺寸T2的中心朝向两侧的方向上相对于线圈的磁场发生器3和4的宽度尺寸T2总共为30％的宽度尺寸T3的60％的宽度尺寸T3 当在平面图中看到。