公开(公告)号：US09423429B2

公开(公告)日：2016-08-23

申请号：US14327182

申请日：2014-07-09

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Hirofumi Fukui

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

CPC classification number: G01R19/0092 ,  G01R15/207 ,  G01R33/02 ,  G01R33/09 ,  G01R33/093

Abstract: A first magnetoelectric conversion element group including magnetoelectric conversion elements, and a second magnetoelectric conversion element group including magnetoelectric conversion elements are arranged across a cutout of a wiring board. The first and second groups are arranged line-symmetrically with respect to a first imaginary line. The elements in the first and second groups are arranged line-symmetrically with respect to a second imaginary line. The first imaginary line and the second imaginary line orthogonally intersect each other at a placement position at which a current path to be measured is placed. The orientation of the sensitivity axis of each of a plurality of magnetoelectric-conversion-element sets having point symmetry about the placement position is parallel or antiparallel. An element spacing, which is spacing between neighboring elements in the first and second groups, is narrower than a group spacing, which is the narrowest spacing between the first and second groups.

Abstract translation: 包括磁电转换元件的第一磁电转换元件组和包括磁电转换元件的第二磁电转换元件组布置在布线板的切口上。 第一组和第二组相对于第一假想线线对称布置。 第一组和第二组中的元件相对于第二假想线线对称布置。 第一假想线和第二假想线在放置当前测量路径的放置位置处彼此正交相交。 具有关于放置位置的点对称性的多个磁电转换元件组中的每一个的灵敏度轴的取向是平行的或反平行的。 作为第一组和第二组中的相邻元件之间的间隔的元件间隔窄于第一组和第二组之间最窄间距的组间距。

公开(公告)号：US09335349B2

公开(公告)日：2016-05-10

申请号：US14137377

申请日：2013-12-20

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Manabu Tamura

IPC: G01R15/20 ,  G01R33/02 ,  G01R19/00

CPC classification number: G01R19/0092 ,  G01R15/20 ,  G01R15/207 ,  G01R19/00 ,  G01R33/02

Abstract: A current sensor of the present invention includes a mounting unit including a disposition region in which a current path is disposed, a pair of magnetic detection elements disposed in the mounting unit so as to sandwich therebetween the disposition region, and an arithmetic circuit performing an arithmetic operation on the current value of the current path on the basis of the detection values of the pair of magnetic detection elements. The pair of magnetic detection elements is disposed on sides opposite to each other with respect to a virtual line passing through the gravity center of the current path in cross-sectional view of the current path, and individually has sensitivity axes parallel to a direction perpendicular to the direction of a current conducted through the current path and the direction of the virtual line.

Abstract translation: 本发明的电流传感器包括安装单元，其包括布置有电流路径的布置区域，设置在安装单元中的一对磁性检测元件，以便将它们夹在其间，配置区域和运算电路， 基于一对磁检测元件的检测值对当前路径的当前值进行动作。 一对磁性检测元件相对于通过电流路径的重心的虚拟线路设置在与电流路径的横截面视图相对的侧上，并且分别具有与垂直于电流路径的方向平行的灵敏度轴 通过电流路径传导的电流的方向和虚拟线的方向。

公开(公告)号：US09229032B2

公开(公告)日：2016-01-05

申请号：US13856345

申请日：2013-04-03

Applicant: ALPS GREEN DEVICES CO., LTD.

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

IPC: G01R27/08 ,  G01R19/00 ,  B82Y25/00 ,  G01R15/20 ,  G01R33/09 ,  H01L43/08 ,  B82Y5/00 ,  G11B3/00 ,  H01F1/00

CPC classification number: G01R19/00 ,  B82Y5/00 ,  B82Y25/00 ,  G01R15/205 ,  G01R33/093 ,  G11B3/00 ,  H01F1/00 ,  H01L43/08

Abstract: A current sensor includes a magnetoresistive element that has a stripe shape and that has a sensing axis in a certain direction. The magnetoresistive element includes element portions that are disposed so as to be spaced apart from each other in a longitudinal direction of the stripe shape, and permanent magnet portions, each of which is disposed between adjacent ones of the element portions. Each element portion has a layered structure including a free magnetic layer whose magnetization direction is changed with respect to an external magnetic field, a non-magnetic intermediate layer, and a ferromagnetic pinned layer whose magnetization direction is pinned. The permanent magnet portion includes a hard bias layer, and an electrode layer that is disposed so as to cover the hard bias layer.

Abstract translation: 电流传感器包括磁阻元件，该磁阻元件具有条形并且在一定方向上具有感测轴。 磁阻元件包括沿条带形状的纵向方向彼此间隔开的元件部分和设置在相邻元件部分之间的永磁体部分。 每个元件部分具有层状结构，其包括磁化方向相对于外部磁场而变化的自由磁性层，非磁性中间层和磁化方向被钉扎的铁磁性钉扎层。 永久磁铁部分包括硬偏置层和设置成覆盖硬偏置层的电极层。

公开(公告)号：US09207288B2

公开(公告)日：2015-12-08

申请号：US13719067

申请日：2012-12-18

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Masatoshi Nomura ,  Manabu Tamura

IPC: G01R33/00 ,  G01R33/02 ,  G01R15/20

CPC classification number: G01R33/0041 ,  G01R15/205 ,  G01R33/00 ,  G01R33/02

Abstract: An electrical current sensor includes a magnetic detection element whose characteristics are changed by an inductive magnetic field from a current to be measured, a plurality of coils that are connected in series with each other and which are arranged in the vicinity of the magnetic detection element, and generates a canceling magnetic field for canceling the inductive magnetic field by a feedback current flowing in the coils, and a switch circuit that selects a coil electrically connected with an input terminal and/or an output terminal of the feedback current from the plurality of coils, and controls a coil for allowing the feedback current to flow.

Abstract translation: 电流传感器包括其特性通过来自待测电流的感应磁场而变化的磁检测元件，彼此串联连接并布置在磁检测元件附近的多个线圈， 并产生用于通过在线圈中流动的反馈电流来消除感应磁场的消除磁场;以及开关电路，其选择与来自多个线圈的反馈电流的输入端子和/或输出端子电连接的线圈 并且控制用于允许反馈电流流动的线圈。

公开(公告)号：US09081031B2

公开(公告)日：2015-07-14

申请号：US13741244

申请日：2013-01-14

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Naruaki Oki ,  Yoshihiro Nishiyama

IPC: G01R33/02 ,  G01R3/00 ,  G01R19/00 ,  G01R15/20 ,  G01R33/028

CPC classification number: G01R3/00 ,  G01R15/207 ,  G01R19/0092 ,  G01R33/02 ,  G01R33/028

Abstract: An electrical current sensor includes a first laminated body having a magnetic detection element disposed over a first substrate, a protective film formed over the first substrate and the magnetic detection element, and a coil formed over the protective film, and a second laminated body having a shield layer formed over a second substrate and which is formed by bonding the first laminated body and the second laminated body to each other with an adhesion layer interposed therebetween such that the magnetic detection element and the shield layer face each other.

Abstract translation: 电流传感器包括：第一层叠体，具有设置在第一基板上的磁检测元件，形成在第一基板和磁检测元件上的保护膜，以及形成在保护膜上的线圈;以及第二层叠体， 屏蔽层，其形成在第二基板上，并且通过将第一层叠体和第二层叠体彼此粘合而形成，使得磁性检测元件和屏蔽层彼此面对。

公开(公告)号：US09046554B2

公开(公告)日：2015-06-02

申请号：US13766664

申请日：2013-02-13

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Masatoshi Nomura ,  Manabu Tamura

IPC: G01R33/09 ,  G01R27/02 ,  G01R19/257 ,  G01R15/20

CPC classification number: G01R19/257 ,  G01R15/207

Abstract: A current sensor includes: a first magnetic sensor and a second magnetic sensor; a first analog-to-digital converter which is connected to the first magnetic sensor and converts an output signal of the first magnetic sensor from an analog signal to a digital signal so as to be output; a second analog-to-digital converter which is connected to the second magnetic sensor and converts an output signal of the second magnetic sensor from an analog signal to a digital signal so as to be output; and an operation device which is connected to the first analog-to-digital converter and the second analog-to-digital converter, and outputs an operation value by subjecting the output signal of the first analog-to-digital converter and the output signal of the second analog-to-digital converter to differential operation.

Abstract translation: 电流传感器包括：第一磁传感器和第二磁传感器; 第一模数转换器，连接到第一磁传感器，并将第一磁传感器的输出信号从模拟信号转换为数字信号，以输出; 第二模数转换器，其连接到第二磁传感器，并将第二磁传感器的输出信号从模拟信号转换为数字信号，以输出; 以及连接到第一模数转换器和第二模数转换器的操作装置，并且通过使第一模数转换器的输出信号和第一模数转换器的输出信号 第二个模数转换器进行差分运算。

公开(公告)号：US09041392B2

公开(公告)日：2015-05-26

申请号：US13939075

申请日：2013-07-10

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Yasuo Kotera ,  Manabu Tamura ,  Hisanori Kiyomatsu

IPC: G01R33/02 ,  G01R31/28 ,  G01R19/00 ,  G01R19/10 ,  G01R15/20

CPC classification number: G01R31/2829 ,  G01R15/205 ,  G01R19/0092 ,  G01R19/10

Abstract: There is provided a current sensor capable of performing malfunction determination with high accuracy even under the influence of an adscititious magnetic field. A current sensor includes first and second current sensor units, a computation unit, a storage unit, and a determination processing unit. The first current sensor unit measures a target current. The first and second current sensor units have almost the same sensitivity. The computation unit calculates and outputs an addition value and a difference value of outputs of the first and second current sensor units. In the storage unit, the addition and difference values output from the computation unit are stored. The determination processing unit determines whether a malfunction has occurred by using the addition and difference values stored in the storage unit. The determination processing unit determines that a malfunction has occurred, in a case where there is a correlation between the addition and difference values.

Abstract translation: 提供了即使在不规则磁场的影响下也能够以高精度进行故障判定的电流传感器。 电流传感器包括第一和第二电流传感器单元，计算单元，存储单元和确定处理单元。 第一个电流传感器单元测量目标电流。 第一和第二电流传感器单元具有几乎相同的灵敏度。 计算单元计算并输出第一和第二电流传感器单元的输出的相加值和差值。 在存储单元中，存储从计算单元输出的加法和差值。 确定处理单元通过使用存储在存储单元中的加和差值来确定是否发生故障。 在加法和差值之间存在相关性的情况下，确定处理单元确定发生故障。

公开(公告)号：US20150015241A1

公开(公告)日：2015-01-15

申请号：US14284234

申请日：2014-05-21

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Manabu TAMURA

IPC: G01R29/08 ,  G01R33/09

CPC classification number: G01R33/091 ,  G01R1/18 ,  G01R15/20 ,  G01R15/202

Abstract: A current sensor according to the present invention includes a bus bar, a magnetic sensor element disposed so as to face the bus bar, a wiring board on which the magnetic sensor element is provided, and a signal line electrically connected to the magnetic sensor element. The wiring board includes a base portion facing the bus bar and an extending portion extending from the base portion, and the signal line is connected to the extending portion and provided in a direction intersecting the wiring board.

Abstract translation: 根据本发明的电流传感器包括汇流条，设置成面向母线的磁性传感器元件，设置有磁性传感器元件的布线基板和与该磁性传感器元件电连接的信号线。 布线板包括面向母线的基部和从基部延伸的延伸部，信号线连接到延伸部并且沿与布线板相交的方向设置。

公开(公告)号：US20140320122A1

公开(公告)日：2014-10-30

申请号：US14327182

申请日：2014-07-09

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Hirofumi FUKUI

IPC: G01R19/00

CPC classification number: G01R19/0092 ,  G01R15/207 ,  G01R33/02 ,  G01R33/09 ,  G01R33/093

Abstract: A first magnetoelectric conversion element group including magnetoelectric conversion elements, and a second magnetoelectric conversion element group including magnetoelectric conversion elements are arranged across a cutout of a wiring board. The first and second groups are arranged line-symmetrically with respect to a first imaginary line. The elements in the first and second groups are arranged line-symmetrically with respect to a second imaginary line. The first imaginary line and the second imaginary line orthogonally intersect each other at a placement position at which a current path to be measured is placed. The orientation of the sensitivity axis of each of a plurality of magnetoelectric-conversion-element sets having point symmetry about the placement position is parallel or antiparallel. An element spacing, which is spacing between neighboring elements in the first and second groups, is narrower than a group spacing, which is the narrowest spacing between the first and second groups.

Abstract translation: 包括磁电转换元件的第一磁电转换元件组和包括磁电转换元件的第二磁电转换元件组布置在布线板的切口上。 第一组和第二组相对于第一假想线线对称布置。 第一组和第二组中的元件相对于第二假想线线对称布置。 第一假想线和第二假想线在放置当前测量路径的放置位置处彼此正交相交。 具有关于放置位置的点对称性的多个磁电转换元件组中的每一个的灵敏度轴的取向是平行的或反平行的。 作为第一组和第二组中的相邻元件之间的间隔的元件间隔窄于第一组和第二组之间最窄间距的组间距。

公开(公告)号：US20140102595A1

公开(公告)日：2014-04-17

申请号：US14134809

申请日：2013-12-19

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Kinshiro TAKADATE ,  Hisato KOSHIBA

IPC: H01F1/28

CPC classification number: H01F1/28 ,  B22F9/002 ,  C22C33/003 ,  C22C33/0214 ,  C22C33/0228 ,  C22C45/02 ,  H01F1/15308 ,  H01F1/15375 ,  H01F41/0246

Abstract: An Fe-based amorphous alloy of the present invention has a composition represented by formula (Fe100-a-b-c-d-eCraPbCcBdSie (a, b, c, d, and e are in terms of at %), where 0 at %≦a≦1.9 at %, 1.7 at %≦b≦8.0 at %, 0 at %≦c≦1.0 at %, an Fe content (100-a-b-c-d-e) is 77 at % or more, 19 at %≦b+c+d+e≦21.1 at %, 0.08≦b/(b+c+d)≦0.43, 0.06≦c/(c+d)≦0.87, and the Fe-based amorphous alloy has a glass transition temperature (Tg).

Abstract translation: 本发明的Fe基非晶合金具有式（Fe100-abcd-eCraPbCcBdSie（a，b，c，d和e以％计）），其中0at％＆nlE; a＆nlE; 1.9 at％，1.7at％＆nlE; b＆nlE; 8.0at％，0 at％＆nlE; c＆nlE; 1.0at％，Fe含量（100-abcde）为77at％或更高，19at％和nlE; b + c + d + e＆nlE; 21.1 at％，0.08＆nlE; b /（b + c + d）＆nlE; 0.43,0.06＆nlE; c /（c + d）＆nlE; 0.87，Fe基非晶合金具有玻璃化转变温度 Tg）。