公开(公告)号：US09229061B2

公开(公告)日：2016-01-05

申请号：US13766688

申请日：2013-02-13

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Hiroyuki Hebiguchi

IPC: G01K1/12 ,  G01K7/00 ,  G01R31/36 ,  H01M10/48 ,  G01K13/00 ,  G01K7/42 ,  H01G11/18 ,  H01G11/84

CPC classification number: G01R31/3606 ,  G01K7/42 ,  G01K13/00 ,  H01G11/18 ,  H01G11/84 ,  H01M10/48 ,  H01M10/486 ,  Y02T10/7022

Abstract: An internal impedance of an electrical storage device is measured by using a signal of a frequency which ions in the electrical storage device are difficult to follow (e.g., a frequency equal to or higher than 10 kHz), and an internal temperature of the electrical storage device is calculated from a measured value of the internal impedance.

Abstract translation: 电存储装置的内部阻抗通过使用难以跟随蓄电装置中的离子（例如，等于或高于10kHz的频率）的频率的信号和电存储器的内部温度来测量 器件根据内部阻抗的测量值计算。

公开(公告)号：US09201126B2

公开(公告)日：2015-12-01

申请号：US14278536

申请日：2014-05-15

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Shinji Mitsuya

IPC: G01R33/02 ,  G01R33/09 ,  G01R15/20 ,  G01R19/00 ,  H01L43/08

CPC classification number: G01R33/093 ,  G01R15/205 ,  G01R19/0046 ,  G01R33/09 ,  H01L43/08 ,  H01L2924/30107

Abstract: A current sensor includes a first magnetic sensor and a second magnetic sensor which are configured to detect an induced magnetic field from target current to be measured flowing through a current line. The first and second magnetic sensors each include a magnetoresistive element that includes a free magnetic layer and a hard bias layer applying a bias magnetic field to the free magnetic layer. The bias magnetic field in the magnetoresistive element of the first magnetic sensor is oriented opposite to the bias magnetic field in the magnetoresistive element of the second magnetic sensor.

Abstract translation: 电流传感器包括第一磁传感器和第二磁传感器，其被配置为从流过电流线的待测量目标电流检测感应磁场。 第一和第二磁传感器各自包括磁阻元件，其包括自由磁性层和向自由磁性层施加偏置磁场的硬偏置层。 第一磁传感器的磁阻元件中的偏置磁场定向成与第二磁传感器的磁阻元件中的偏置磁场相反。

公开(公告)号：US09069032B2

公开(公告)日：2015-06-30

申请号：US13743274

申请日：2013-01-16

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Hiroyuki Hebiguchi

IPC: G01R33/09 ,  G01R15/20 ,  B82Y25/00 ,  G01R33/00

CPC classification number: G01R33/093 ,  B82Y25/00 ,  G01R15/205 ,  G01R15/207 ,  G01R33/0041 ,  G01R33/09

Abstract: A magnetic balance type current sensor includes: a magnetic detection bridge circuit of which output varies due to an induced magnetic field from a current wire; a magnetic field attenuation unit that attenuates the induced magnetic field that acts on a magnetoresistive effect element; and a feedback coil which generates a cancel magnetic field that cancels the induced magnetic field in accordance with the output of the magnetic detection bridge circuit, and through which a current corresponding to the current to be measured flows when it enters a balanced state in which the cancel magnetic field and the induced magnetic field cancel each other, wherein the feedback coil is provided in such a manner that a direction of the cancel magnetic field that acts on the magnetic field attenuation unit is opposite to a direction of the induced magnetic field that acts on the magnetic field attenuation unit.

Abstract translation: 磁平衡型电流传感器包括：磁检测桥电路，其输出由于来自电流线的感应磁场而变化; 磁场衰减单元，其衰减作用在磁阻效应元件上的感应磁场; 以及反馈线圈，其产生根据磁检测桥电路的输出抵消感应磁场的抵消磁场，并且当与待测电流对应的电流进入平衡状态时， 取消磁场和感应磁场彼此抵消，其中反馈线圈以使得作用在磁场衰减单元上的抵消磁场的方向与感应磁场的方向相反的方式被提供， 在磁场衰减单元上。

公开(公告)号：US20150123650A1

公开(公告)日：2015-05-07

申请号：US14594996

申请日：2015-01-12

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Ken MATSUE ,  Manabu TAMURA

IPC: G01R19/00

CPC classification number: G01R19/0092 ,  G01R15/207

Abstract: A current sensor includes a first current path including a first flat-shaped portion, and a first magnetoelectric conversion element arranged on the first current path and configured to detect magnetism generated when a current to be measured flows through the first current path, wherein the current sensor measures the current to be measured of a device to which the first current path is connected, a first conductive convex portion is provided, in the first current path, in a direction in which the current to be measured flows, and the first magnetoelectric conversion element is arranged at a position on the first current path, at which a magnetic flux density due to the current to be measured of a minimum frequency used in the device and a magnetic flux density due to the current to be measured of a maximum frequency used in the device substantially coincide with each other.

Abstract translation: 电流传感器包括包括第一平坦形状部分的第一电流路径和布置在第一电流路径上并且被配置为检测当待测量的电流流过第一电流路径时产生的磁性的第一电磁转换元件，其中电流 传感器测量第一电流路径所连接的装置的测量电流，在第一电流路径中设置第一导电凸部，沿待测量电流流动的方向和第一磁电转换 元件布置在第一电流路径上的位置，在该位置处由于要测量的电流的磁通密度在器件中使用的最小频率以及由于待测量的电流而使用的最大频率所使用的磁通密度 在设备中基本上彼此重合。

公开(公告)号：US08854173B2

公开(公告)日：2014-10-07

申请号：US13942579

申请日：2013-07-15

Applicant: Alps Green Devices Co., Ltd.

Inventor： Keiko Tsuchiya ,  Jun Okamoto ,  Hisato Koshiba

IPC: H01F27/24 ,  H01F27/02 ,  H01F5/00 ,  H01F1/00 ,  B22F1/00 ,  H01F41/02 ,  C22C38/00 ,  H01F1/153 ,  C22C45/02 ,  H01F27/255 ,  C22C33/02

CPC classification number: H01F27/255 ,  B22F1/0003 ,  C22C33/0257 ,  C22C38/00 ,  C22C45/02 ,  H01F1/15308 ,  H01F41/0246 ,  H01F2017/048

Abstract: An Fe-based amorphous alloy powder of the present invention has a composition represented by (Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit)100-αMα. In this composition, 0 at %≦a≦10 at %, 0 at %≦b≦3 at %, 0 at %≦c≦6 at %, 6.8 at %≦x≦10.8 at %, 2.2 at %≦y≦9.8 at %, 0 at %≦z≦4.2 at %, and 0 at %≦t≦3.9 at % hold, a metal element M is at least one selected from the group consisting of Ti, Al, Mn, Zr, Hf, V, Nb, Ta, Mo, and W, and the addition amount α of the metal element M satisfies 0.04 wt %≦α≦0.6 wt %. Accordingly, besides a decrease of a glass transition temperature (Tg), an excellent corrosion resistance and high magnetic characteristics can be obtained.

Abstract translation: 本发明的Fe系非晶质合金粉末具有由（Fe100-a-b-c-x-y-z-tNiaSnbCrcPxCyBzSit）100-αMα表示的组成。 在该组合物中，0at％＆nlE; a＆nlE; 10at％，0at％＆amp; nlE; b＆nlE; 3at％，0at％＆amp; nlE; c＆nlE; 6at％，6.8at％＆amp; nlE; x＆lt; ％＆nlE; y＆nlE; 9.8 at％，0 at％＆nlE; z＆nlE; 4.2 at％，0 at％＆nlE; t＆nlE; 3.9 at％hold，金属元素M为从Ti，Al ，Mn，Zr，Hf，V，Nb，Ta，Mo和W，金属元素M的添加量α满足0.04wt％＆lt; nlE;α＆nlE; 0.6wt％。 因此，除了玻璃化转变温度（Tg）的降低之外，还可以获得优异的耐腐蚀性和高的磁特性。

公开(公告)号：US08847588B2

公开(公告)日：2014-09-30

申请号：US13659723

申请日：2012-10-24

Applicant: Alps Green Devices Co., Ltd.

Inventor： Manabu Tamura

IPC: G01R33/12 ,  G01R33/07 ,  G01R33/09

CPC classification number: G01R15/207 ,  G01R15/202 ,  G01R33/07

Abstract: A current sensor includes a current path to be measured, a neighboring current path that is provided in the vicinity of the current path to be measured, first and second magnetoelectric transducers having a main sensitivity axis parallel to a direction of a magnetic field generated by a current to be measured flowing in the current path to be measured, and are provided so that the directions of the magnetic fields generated by the current to be measured are applied in mutually opposite directions, and third and fourth magnetoelectric transducers having a main sensitivity axis being non-orthogonal to a direction of a magnetic field generated by the neighboring current while being orthogonal to the direction of the magnetic field generated by the current to be measured, and are provided so that the directions of the magnetic fields generated by the current to be measured are applied in mutually opposite directions.

Abstract translation: 电流传感器包括待测量的电流路径，设置在待测量的电流路径附近的相邻电流路径，第一和第二磁电换能器，其主要灵敏度轴线平行于由 被测量的电流在待测量的电流通路中流动，并且被设置成使得由待测量的电流产生的磁场的方向被施加在相反的方向上，并且具有主感测轴的第三和第四磁电换能器 与由相邻电流产生的磁场的方向非正交，同时正交于由待测电流产生的磁场的方向，并且被设置为使得由电流产生的磁场的方向为 测量应用在相互相反的方向。

公开(公告)号：US20140247044A1

公开(公告)日：2014-09-04

申请号：US14278536

申请日：2014-05-15

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Shinji MITSUYA

IPC: G01R33/09 ,  G01R19/00

CPC classification number: G01R33/093 ,  G01R15/205 ,  G01R19/0046 ,  G01R33/09 ,  H01L43/08 ,  H01L2924/30107

Abstract: A current sensor includes a first magnetic sensor and a second magnetic sensor which are configured to detect an induced magnetic field from target current to be measured flowing through a current line. The first and second magnetic sensors each include a magnetoresistive element that includes a free magnetic layer and a hard bias layer applying a bias magnetic field to the free magnetic layer. The bias magnetic field in the magnetoresistive element of the first magnetic sensor is oriented opposite to the bias magnetic field in the magnetoresistive element of the second magnetic sensor.

Abstract translation: 电流传感器包括第一磁传感器和第二磁传感器，其被配置为从流过电流线的待测量目标电流检测感应磁场。 第一和第二磁传感器各自包括磁阻元件，其包括自由磁性层和向自由磁性层施加偏置磁场的硬偏置层。 第一磁传感器的磁阻元件中的偏置磁场定向成与第二磁传感器的磁阻元件中的偏置磁场相反。

公开(公告)号：US08760158B2

公开(公告)日：2014-06-24

申请号：US13917525

申请日：2013-06-13

Applicant: Alps Green Devices Co., Ltd.

Inventor： Kenji Ichinohe ,  Masamichi Saito ,  Akira Takahashi ,  Yosuke Ide

IPC: G01R33/09 ,  G01R19/00

CPC classification number: G01R33/09 ,  G01R15/205 ,  G01R19/0092

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20140103918A1

公开(公告)日：2014-04-17

申请号：US14109691

申请日：2013-12-17

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Masatoshi NOMURA

IPC: G01R19/00

CPC classification number: G01R19/0092 ,  G01D5/12 ,  G01R15/205 ,  G01R15/207 ,  G01V3/08

Abstract: A current sensor includes a first current path, a second current path disposed parallel to the first current path, and a pair of first magnetic sensors. The first current path has a pair of main surfaces and includes a plate-shaped first region. The second current path has a pair of main surfaces and includes a plate-shaped second region. The first magnetic sensors are arranged on the respective main surfaces in the first region such that sensing axes of the first magnetic sensors are parallel to the respective main surfaces in the first region. The first magnetic sensors are configured to sense a magnetic field generated by a target current flowing through the first region. The second region is placed such that the main surfaces in the second region are perpendicular to the sensing axes of the first magnetic sensors.

Abstract translation: 电流传感器包括第一电流路径，平行于第一电流路径设置的第二电流路径和一对第一磁性传感器。 第一电流路径具有一对主表面，并且包括板状的第一区域。 第二电流路径具有一对主表面，并且包括板状的第二区域。 第一磁传感器布置在第一区域中的相应主表面上，使得第一磁传感器的感测轴平行于第一区域中的相应主表面。 第一磁传感器被配置为感测由流过第一区域的目标电流产生的磁场。 第二区域被放置成使得第二区域中的主表面垂直于第一磁传感器的感测轴。

公开(公告)号：US20130265040A1

公开(公告)日：2013-10-10

申请号：US13910009

申请日：2013-06-04

Applicant: Alps Green Devices Co., Ltd.

Inventor： Yosuke IDE ,  Masamichi SAITO ,  Akira TAKAHASHI ,  Masahiro IIZUKA ,  Kenji ICHINOHE ,  Yoshihiro NISHIYAMA ,  Mitsuo ARATONO

IPC: G01R15/20

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

Abstract: 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.

Abstract translation: 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。