公开(公告)号：US20120062224A1

公开(公告)日：2012-03-15

申请号：US13300064

申请日：2011-11-18

申请人： Yosuke IDE ,  Masahiro IIZUKA ,  Masamichi SAITO ,  Akira TAKAHASHI ,  Hideharu MATSUO ,  Tsuyoshi NOJIMA ,  Shigenobu MIYAJIMA ,  Naoki SAKATSUME ,  Kenji ICHINOHE ,  Yoshihiro NISHIYAMA ,  Tatsuya KOGURE ,  Hidekazu KOBAYASHI

发明人： Yosuke IDE ,  Masahiro IIZUKA ,  Masamichi SAITO ,  Akira TAKAHASHI ,  Hideharu MATSUO ,  Tsuyoshi NOJIMA ,  Shigenobu MIYAJIMA ,  Naoki SAKATSUME ,  Kenji ICHINOHE ,  Yoshihiro NISHIYAMA ,  Tatsuya KOGURE ,  Hidekazu KOBAYASHI

IPC分类号： G01R33/02

CPC分类号： B82Y25/00 ,  G01R15/205 ,  G01R31/006 ,  G01R33/093

摘要： A magnetic balance type current sensor includes a magnetoresistance effect element whose resistance value changes owing to the application of an induction magnetic field from a current to be measured; a feedback coil disposed in the vicinity of the magnetoresistance effect element and generating a cancelling magnetic field cancelling out the induction magnetic field; a magnetic field detection bridge circuit including two outputs causing a voltage difference corresponding to the induction magnetic field to occur; and a magnetic shield attenuating the induction magnetic field and enhancing the cancelling magnetic field, wherein, on the basis of the current flowing through the feedback coil at the time of an equilibrium state in which the induction magnetic field and the cancelling magnetic field are cancelled out, the current to be measured is measured, wherein the feedback coil, the magnetic shield, and the magnetic field detection bridge circuit are formed on a same substrate.

摘要翻译： 磁平衡型电流传感器包括磁阻效应元件，其电阻值由于施加来自待测量电流的感应磁场而改变; 设置在所述磁阻效应元件附近的反馈线圈，并产生抵消所述感应磁场的抵消磁场; 包括导致与感应磁场相对应的电压差的两个输出的磁场检测桥电路; 以及磁屏蔽，其使感应磁场衰减并增强抵消磁场，其中，基于在抵消感应磁场和抵消磁场的平衡状态时流过反馈线圈的电流 测量待测量的电流，其中反馈线圈，磁屏蔽和磁场检测桥接电路形成在同一衬底上。

公开(公告)号：US20120062215A1

公开(公告)日：2012-03-15

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： G01R35/00

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。

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。

公开(公告)号：US20110080165A1

公开(公告)日：2011-04-07

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： G01R33/02

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。

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。

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。

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。

公开(公告)号：US20100270865A1

公开(公告)日：2010-10-28

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： H01L23/52

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上以与磁场重叠 发电机，如俯视图; 以及第一和第二屏蔽膜，与顶视平面图中的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。

公开(公告)号：US08754642B2

公开(公告)日：2014-06-17

申请号：US13300064

申请日：2011-11-18

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

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

IPC分类号： G01R33/09

CPC分类号： B82Y25/00 ,  G01R15/205 ,  G01R31/006 ,  G01R33/093

摘要： A magnetic balance type current sensor includes a magnetoresistance effect element whose resistance value changes owing to the application of an induction magnetic field from a current to be measured; a feedback coil disposed in the vicinity of the magnetoresistance effect element and generating a cancelling magnetic field cancelling out the induction magnetic field; a magnetic field detection bridge circuit including two outputs causing a voltage difference corresponding to the induction magnetic field to occur; and a magnetic shield attenuating the induction magnetic field and enhancing the cancelling magnetic field, wherein, on the basis of the current flowing through the feedback coil at the time of an equilibrium state in which the induction magnetic field and the cancelling magnetic field are cancelled out, the current to be measured is measured, wherein the feedback coil, the magnetic shield, and the magnetic field detection bridge circuit are formed on a same substrate.

摘要翻译： 磁平衡型电流传感器包括磁阻效应元件，其电阻值由于施加来自待测量电流的感应磁场而改变; 设置在所述磁阻效应元件附近的反馈线圈，并产生抵消所述感应磁场的抵消磁场; 包括导致与感应磁场相对应的电压差的两个输出的磁场检测桥电路; 以及磁屏蔽，其使感应磁场衰减并增强抵消磁场，其中，基于在抵消感应磁场和抵消磁场的平衡状态时流过反馈线圈的电流 测量待测量的电流，其中反馈线圈，磁屏蔽和磁场检测桥接电路形成在同一衬底上。

公开(公告)号：US20100270866A1

公开(公告)日：2010-10-28

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： H01L23/52

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。