-
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：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：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：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
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：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。
-
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。
-
8.发明授权公开(公告)号：US08476899B2
公开(公告)日：2013-07-02
申请号：US13038307
申请日：2011-03-01
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。
-
公开(公告)号：US08487612B2
公开(公告)日：2013-07-16
申请号：US13038312
申请日：2011-03-01
申请人： Kenji Ichinohe , Masamichi Saito , Akira Takahashi , Yosuke Ide
发明人： Kenji Ichinohe , Masamichi Saito , Akira Takahashi , Yosuke Ide
IPC分类号： G01R33/09
CPC分类号： G01R33/09 , G01R15/205 , G01R19/0092
摘要： A current sensor including a magnetic detecting bridge circuit which is constituted of four magneto-resistance effect elements with a resistance value varied by application of an induced magnetic field from a current to be measured, and which has an output between two magneto-resistance effect elements. The four magneto-resistance effect elements have the same resistance change rate, and include a self-pinned type ferromagnetic fixed layer which is formed by anti-ferromagnetically coupling a first ferromagnetic film and a second ferromagnetic film via an antiparallel coupling film therebetween, a nonmagnetic intermediate layer, and a soft magnetic free layer. Magnetization directions of the ferromagnetic fixed layers of the two magneto-resistance effect elements providing the output are different from each other by 180°. The magnetic detecting bridge circuit has wiring symmetrical to a power supply point.
摘要翻译： 一种电流传感器，包括磁检测桥电路，其由具有通过施加来自待测电流的感应磁场而变化的电阻值的四个磁阻效应元件构成，并且具有两个磁阻效应元件之间的输出 。 四个磁阻效应元件具有相同的电阻变化率，并且包括通过其间的反平行耦合膜将第一铁磁膜和第二铁磁膜反铁磁耦合形成的自固定型铁磁性固定层，非磁性 中间层和软磁性层。 提供输出的两个磁阻效应元件的铁磁固定层的磁化方向彼此相差180°。 磁检测桥电路具有与电源点对称的布线。
-
10.发明授权Current measurement apparatus having a series of magnetoresistive effect elements disposed in a ring shape 有权具有以环状设置的一系列磁阻效应元件的电流测量装置公开(公告)号：US09170281B2
公开(公告)日：2015-10-27
申请号：US13608563
申请日：2012-09-10
CPC分类号： G01R15/205 , B82Y25/00 , G01R33/093
摘要： A current measurement apparatus includes multiple GMR elements and a calculation unit. The multiple GMR elements each include a pinned magnetic layer having a pinned magnetization direction, and a free magnetic layer having a magnetization direction to be changed by an external magnetic field. The calculation unit obtains the magnitude of a current to be detected, from outputs of the multiple GMR elements. The multiple GMR elements are disposed in ring shape around a conductor through which the current to be detected flows, and are electrically connected so as to form a series variable resistor by using the multiple GMR elements. The magnetization directions of the pinned magnetic layers are pinned in the same direction when viewed from an extension direction of the conductor at each of the positions of the elements.
摘要翻译： 电流测量装置包括多个GMR元件和计算单元。 多个GMR元件各自包括具有钉扎磁化方向的钉扎磁性层和具有由外部磁场改变的磁化方向的自由磁性层。 计算单元从多个GMR元件的输出获得要检测的电流的大小。 多个GMR元件围绕导体设置为环形，待检测的电流通过该导体流动，并且被电连接，以便通过使用多个GMR元件形成串联可变电阻器。 当在元件的每个位置处从导体的延伸方向观察时，被钉扎的磁性层的磁化方向被固定在相同的方向上。
-
-
-
-
-
-
-
-
-
搜索结果
710 条记录 (耗时 0.045 秒)
