公开(公告)号：US09395423B2

公开(公告)日：2016-07-19

申请号：US14618139

申请日：2015-02-10

申请人： Infineon Technologies AG

发明人： Udo Ausserlechner

IPC分类号： G01R33/07 ,  G01R33/09 ,  G01R15/20

CPC分类号： G01R33/091 ,  G01R15/205 ,  G01R33/072 ,  G01R33/093 ,  G01R33/096 ,  G01R33/098

摘要： Embodiments relate to magnetic current sensors. In various embodiments, a current sensor can include a simple conductor having a constant cross-sectional profile, such as round, square or rectangular, and being generally free of any notches or slots to divert current and thereby having a simpler manufacturing process, lower resistance and improved mechanical robustness. In embodiments, the conductor can be formed of a non-magnetic conductive material, such as aluminum or copper.

公开(公告)号：US20160047846A1

公开(公告)日：2016-02-18

申请号：US14457560

申请日：2014-08-12

申请人： Analog Devices, Inc.

发明人： Yogesh Jayaraman Sharma ,  Nathan R. Carter ,  Teera Songatikamas ,  Brendan Cronin

IPC分类号： G01R15/20 ,  G01R33/09

CPC分类号： G01R15/207 ,  G01R15/202 ,  G01R15/205 ,  G01R33/096

摘要： In an embodiment, a body of apparatus includes an opening, such as a V-shaped jaw, that deterministically locates a position of a wire in at least one dimension when the wire is placed in the opening. The apparatus also includes a plurality of sensors. At least one differential signal can be generated from signals from magnetic sensors, such as anisotropic magnetoresistance (AMR) sensors, of the plurality of sensors to cancel out common mode interference. An additional sensor of the plurality of sensors provides an output from which the location of the wire in another dimension is determined. The current flowing through the wire can be derived from at least the at least one differential signal and the location of the wire the other dimension.

摘要翻译： 在一个实施例中，设备本体包括诸如V形夹爪的开口，当线放置在开口中时，确定性地将线的位置确定在至少一个维度上。 该装置还包括多个传感器。 可以从多个传感器的来自诸如各向异性磁阻（AMR）传感器的磁传感器的信号产生至少一个差分信号，以消除共模干扰。 多个传感器中的附加传感器提供输出，其中确定另一维度中的线的位置。 流经电线的电流可以从至少一个差分信号和电线的另一个维度的位置得到。

公开(公告)号：US09207264B2

公开(公告)日：2015-12-08

申请号：US13910009

申请日：2013-06-04

申请人： ALPS GREEN DEVICES CO., LTD.

发明人： Yosuke Ide ,  Masamichi Saito ,  Akira Takahashi ,  Masahiro Iizuka ,  Kenji Ichinohe ,  Yoshihiro Nishiyama ,  Mitsuo Aratono

IPC分类号： G01R33/02 ,  G01R33/09 ,  G01R15/20 ,  H01L27/22 ,  H01L43/08 ,  H01F10/32 ,  B82Y25/00

CPC分类号： G01R15/205 ,  B82Y25/00 ,  G01R33/09 ,  G01R33/093 ,  H01F10/3272 ,  H01L27/22 ,  H01L43/08

摘要： A current sensor includes a substrate, a conductive body being provided above the substrate and extending in one direction, and magnetoresistance effect elements being provided between the substrate and the conductive body and outputting output signals owing to an induction magnetic field from a current to be measured being conducted through the conductive body, wherein each of the magnetoresistance effect elements has a laminated structure including a ferromagnetic fixed layer whose magnetization direction is fixed, a non-magnetic intermediate layer, and a free magnetic layer whose magnetization direction fluctuates with respect to an external magnetic field, the ferromagnetic fixed layer is a self-pinned type formed by antiferromagnetically coupling a first ferromagnetic film and a second ferromagnetic film through an antiparallel coupling film, the Curie temperatures of the first ferromagnetic film and the second ferromagnetic film are approximately equal, and a difference between the magnetization amounts thereof is substantially zero.

摘要翻译： 电流传感器包括衬底，导电体设置在衬底上并在一个方向上延伸，并且磁阻效应元件设置在衬底和导电体之间，并且由于来自待测电流的感应磁场而输出输出信号 通过导电体导电，其中每个磁阻效应元件具有包括其磁化方向固定的铁磁固定层，非磁性中间层和磁化方向相对于外部的磁化方向波动的自由磁性层的层压结构 铁磁固定层是通过反平行耦合膜反铁磁耦合第一铁磁膜和第二铁磁膜而形成的自固定型，第一铁磁膜和第二铁磁性膜的居里温度近似相等， t之间的区别 其磁化量基本为零。

公开(公告)号：US20150204916A1

公开(公告)日：2015-07-23

申请号：US14600784

申请日：2015-01-20

申请人： Hitachi Metals, Ltd.

发明人： Katsuya AKIMOTO ,  Hisashi TATE ,  Naoki FUTAKUCHI ,  Naofumi CHIWATA ,  Ken OKUYAMA ,  Yukio IKEDA ,  Kazuhisa TAKAHASHI

IPC分类号： G01R19/00 ,  G01R33/09 ,  G01R19/25

CPC分类号： G01R19/0092 ,  G01R15/205 ,  G01R15/207 ,  G01R19/25 ,  G01R33/093

摘要： An electric current sensor includes a plurality of bus bars arranged in parallel, a plurality of magnetic detection elements that are adapted to detect a strength of a magnetic field generated by an electric current flowing through the bus bars and to output a voltage according to the strength of the magnetic field detected, and an arithmetic operation part to arithmetically operate an electric current flowing through the bus bars based on the voltage output from the plurality of magnetic detection elements. The arithmetic operation part includes a magnetic flux density arithmetic operation part to arithmetically operate a magnetic flux density based on the voltage, and an electric current arithmetic operation part to arithmetically operate an electric current I1 to Im flowing through each of the bus bars based on formula (1) below, ( B 1 = a 11 · I 1 + a 12 · I 2 + … + a 1   n · I n B 2 = a 21 · I 1 + a 22 · I 2 + … + a 2  n · I n B 3 = a 31 · I 1 + a 32 · I 2 + … + a 3  n · I n ⋮   ⋮ B m = a m   1 · I 1 + a m   2 · I 2 + … + a mn · I n   where   a 11   to   a mn   are   coefficients , ( 1 ) B1 to Bm are a magnetic flux density and I1 to Im are an electric current.

摘要翻译： 电流传感器包括并排布置的多个母线，多个磁检测元件，其适于检测由流过母线的电流产生的磁场的强度，并根据强度输出电压 以及算术运算部件，其基于从多个磁检测元件输出的电压算术运算流经母线的电流。 算术运算部包括基于电压算术运算磁通密度的磁通密度算术运算部，以及电流运算部，根据公式计算流过各母线的电流I1〜Im （1）（B 1 = a 11·I 1 + a 12·I 2 + ... + a 1）n·I n B 2 = a 21·I 1 + a 22·I 2 + ... + a 2 n n I n B 3 = a 31·I 1 + a 32·I 2 + ... + a 3 n n I n⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮⋮1 1 1 1 1 1 1 1 I I I I I I （1）B1到Bm是磁通密度，I1到Im是电流。

公开(公告)号：US09041388B2

公开(公告)日：2015-05-26

申请号：US13387318

申请日：2010-04-12

申请人： Yasushi Ogimoto

发明人： Yasushi Ogimoto

IPC分类号： G01R33/02 ,  G01R15/14

CPC分类号： G01R15/205 ,  G01R15/148 ,  G01R33/093 ,  G01R33/098

摘要： A non-contact current censor includes a spin valve structure (2), an electrical unit (4) that applies a varying current to the spin valve structure (2), and a resistance reading unit that electrically reads out a resistance value of the spin valve structure (2). When a current-induced magnetic field is detected, a coercive force of a free layer (14) is configured to be larger than the current-induced magnetic field as a detection target, and the electrical unit (4) allows the magnetization directions of a pinned layer (12) and the free layer (14) to transition between a mutually parallel state and a mutually anti-parallel state by applying the current to the spin valve structure (2). The resistance reading unit (5) detects a threshold value corresponding to the transition.

摘要翻译： 非接触电流检测器包括自旋阀结构（2），向自旋阀结构（2）施加变化电流的电单元（4）;以及电阻读取单元，其电读出旋转电阻值 阀门结构（2）。 当检测到电流感应磁场时，自由层（14）的矫顽力被配置为大于作为检测对象的电流感应磁场，并且电单元（4）允许a的磁化方向 被钉扎层（12）和自由层（14）通过将电流施加到自旋阀结构（2）而在相互平行状态和相互反平行状态之间转变。 电阻读取单元（5）检测与转换对应的阈值。

公开(公告)号：US20150115951A1

公开(公告)日：2015-04-30

申请号：US14388419

申请日：2013-03-19

申请人： OSAKA CITY UNIVERSITY

发明人： Hiroaki Tsujimoto

IPC分类号： G01R21/08 ,  G01R21/00

CPC分类号： G01R21/08 ,  G01R1/00 ,  G01R1/203 ,  G01R15/142 ,  G01R15/205 ,  G01R21/00 ,  G01R33/072 ,  H01H1/00 ,  H01L2221/00

摘要： A power measurement apparatus configured to measure power consumed at a load, the apparatus includes a magnetic film module, an adjuster, a measurement resistance, and a voltage detector. The magnetic film module is arranged so that a longitudinal direction of the magnetic film module is parallel to current flowing in the load. The adjuster is configured to adjust a pass-frequency and a phase of a voltage at one terminal of the magnetic film module. The measurement resistance is serial-connected to the magnetic film module. The voltage detector is configured to detect a voltage between both terminals of the magnetic film module.

摘要翻译： 一种功率测量装置，被配置为测量负载消耗的功率，该装置包括磁膜模块，调节器，测量电阻和电压检测器。 磁膜模块被布置成使得磁膜模块的纵向平行于在负载中流动的电流。 调整器被配置为调整磁性膜组件的一个端子处的电压的通过频率和相位。 测量电阻串联连接到磁性膜模块。 电压检测器被配置为检测磁性膜模块的两个端子之间的电压。

公开(公告)号：US20150097560A1

公开(公告)日：2015-04-09

申请号：US14394600

申请日：2013-04-22

申请人： HITACHI METALS, LTD.

发明人： Makoto Kawakami ,  Yasunori Takaki

IPC分类号： G01R33/09 ,  G01R19/00

CPC分类号： G01R33/091 ,  G01R15/205 ,  G01R19/0092 ,  G01R33/0076 ,  G01R33/0082 ,  G01R33/02 ,  G01R33/09 ,  G01R33/093

摘要： Provided is a magnetic sensor device capable of attenuating the intensity of the magnetic field to be applied to the magnetic sensor. A magnetic sensor device includes a magnetic sensor element which detects the intensity of a magnetic field in a predetermined detection axis direction, and a magnetic field attenuation body which includes a first magnetic field attenuation unit and a second magnetic field attenuation unit, each of the attenuation units having a surface and the surfaces being opposed to each other with the magnetic sensor element therebetween.

摘要翻译： 提供了能够衰减施加到磁传感器的磁场强度的磁传感器装置。 磁传感器装置包括检测预定检测轴方向的磁场强度的磁传感器元件和包括第一磁场衰减单元和第二磁场衰减单元的磁场衰减体，每个衰减 具有表面的单元，并且表面彼此相对，其间具有磁性传感器元件。

公开(公告)号：US08994370B2

公开(公告)日：2015-03-31

申请号：US13812823

申请日：2011-07-28

申请人： Myriam Pannetier-Lecoeur ,  Claude Fermon ,  Alain Giraud ,  Francis Roy

发明人： Myriam Pannetier-Lecoeur ,  Claude Fermon ,  Alain Giraud ,  Francis Roy

IPC分类号： G01R33/02 ,  G01R33/09 ,  G01R15/20 ,  H01M8/04 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  G01R31/36

CPC分类号： G01R33/09 ,  G01R15/205 ,  G01R31/3658 ,  G01R33/093 ,  G01R33/098 ,  H01M8/04537 ,  H01M8/04858 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  Y02E60/50

摘要： The invention relates to an integrated sensor, including terminals (1, 2) for connection to an electric generator, said terminals being connected to a metal measuring line (4, 5) in which a current proportional to the voltage or current of the generator to be measured flows, and magnetoresistors (31, 32, 33, 34). The metal measuring line includes elongate and parallel sections (4, 5) in which the current flows in opposite directions, said sections being connected to a portion (3) for closing the metal measuring line (3, 4, 5), which is arranged on a galvanic isolation layer (8) that is in turn arranged on an integrated circuit portion including the magnetoresistors (31, 32, 33, 34), each of which have a sensitive portion that is vertically adjacent to one of the elongate sections (4, 5). The sensor can be integrated into a diagnostic system.

摘要翻译： 本发明涉及一种集成传感器，包括用于连接到发电机的端子（1,2），所述端子连接到金属测量线（4,5），其中电流与发电机的电压或电流成比例 测量流量和磁阻器（31,32,33,34）。 金属测量线包括细长且平行的部分（4,5），其中电流沿相反方向流动，所述部分连接到用于关闭金属测量线（3,4,5）的部分（3），所述部分（3）被布置 在电隔离层（8）上，所述电隔离层（8）又布置在包括所述磁阻器（31,32,33,34）的集成电路部分上，每个所述敏感部分具有与所述细长部分（4）中的一个垂直相邻的敏感部分 ，5）。 传感器可以集成到诊断系统中。

公开(公告)号：US20150054500A1

公开(公告)日：2015-02-26

申请号：US14390932

申请日：2013-03-29

申请人： Commissariat à I'énergie atomique et aux énergies alternatives ,  Renault S.A.S.

发明人： Sylvain Bacquet ,  Frédéric Auzas ,  Bertrand Delaet

IPC分类号： G01R33/09 ,  G01R35/00

CPC分类号： G01R33/09 ,  G01R15/205 ,  G01R33/007 ,  G01R35/00 ,  G01R35/005

摘要： A method for measuring a first magnetic field and the temperature of a magneto-resistive transducer includes producing, by the magneto-resistive transducer, a measurement signal dependent on the intensity of the first magnetic field and on the temperature of the magneto-resistive transducer. The method includes establishing a measurement of the intensity of the first magnetic field on the basis of the measurement signal produced and a measurement of the temperature of the magneto-resistive transducer. The method also includes generating a second magnetic field to combine with the first magnetic field to form a resultant magnetic field. The method further includes extracting from the measurement signal, the component which is dependent solely on the second magnetic field and establishing the temperature of the magneto-resistive transducer on the basis of the component extracted.

摘要翻译： 用于测量第一磁场和磁阻换能器的温度的方法包括由磁阻换能器产生取决于第一磁场的强度和磁阻换能器的温度的测量信号。 该方法包括基于产生的测量信号和磁阻换能器的温度测量来建立第一磁场强度的测量。 该方法还包括产生第二磁场以与第一磁场组合以形成合成的磁场。 该方法还包括从测量信号中提取仅依赖于第二磁场的分量，并且基于所提取的分量建立磁阻换能器的温度。

公开(公告)号：US20150048819A1

公开(公告)日：2015-02-19

申请号：US14387482

申请日：2013-03-13

申请人： HITACHI METALS, LTD.

发明人： Makoto Kawakami ,  Yasunori Takaki ,  Yasunori Abe ,  Yasuhito Takeuchi

IPC分类号： G01R33/09

CPC分类号： G01R33/05 ,  G01R15/205 ,  G01R33/09 ,  G01R33/093 ,  H01L43/08

摘要： A magnetic sensor device includes a thin film first magnetic body provided with a magnetic path convergence/divergence section arranged on a predetermined axis, and at least a pair of wing-shaped sections extending from the magnetic path convergence/divergence section toward the opposite sides of said axis, a thin film second magnetic body provided with a magnetic path convergence/divergence section arranged on the predetermined axis to be spaced from the magnetic path convergence/divergence section of the first magnetic body, at least a pair of wing-shaped sections extending from this magnetic path convergence divergence toward the opposite sides of the axis, a first coil wound around the first magnetic body, a second coil wound around the second magnetic body, and a magnetoresistance effect element arranged between the magnetic path convergence/divergence section of the first magnetic body and the of the second magnetic body.

摘要翻译： 磁传感器装置包括设置有设置在预定轴上的磁路会聚/发散部分的薄膜第一磁体和至少一对从磁路会聚/发散部分朝向相对侧延伸的翼形部分 所述轴线，设置有与所述第一磁性体的磁路会聚/发散部分间隔开的预定轴线上的磁路会聚/发散部分的薄膜第二磁性体，至少一对延伸 从该磁路收敛发散朝向轴的相对侧，缠绕在第一磁体上的第一线圈，缠绕在第二磁体上的第二线圈，以及布置在第二磁体的磁路收敛/发散部之间的磁阻效应元件 第一磁体和第二磁体。