公开(公告)号：US20140070801A1

公开(公告)日：2014-03-13

申请号：US14077020

申请日：2013-11-11

Applicant: Alps Green Devices Co., Ltd.

Inventor： Manabu TAMURA

IPC: G01R19/00 ,  G01R33/02

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

Abstract: A current sensor includes a first conductor and a second conductor arranged so as to form current paths parallel to each other; a circuit board arranged such that a surface thereof is perpendicular to the current paths; and a first magnetoelectric transducer and a second magnetoelectric transducer arranged on the surface of the circuit board such that the first conductor is interposed therebetween. The first conductor, the second conductor, the first magnetoelectric transducer, and the second magnetoelectric transducer are located on a same plane.

Abstract translation: 电流传感器包括布置成形成彼此平行的电流路径的第一导体和第二导体; 布置成使其表面垂直于电流路径的电路板; 以及布置在电路板的表面上的第一磁电变换器和第二磁电变换器，使得第一导体插入其间。 第一导体，第二导​​体，第一磁电变换器和第二磁电变换器位于同一平面上。

公开(公告)号：US20140103908A1

公开(公告)日：2014-04-17

申请号：US14137377

申请日：2013-12-20

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Manabu TAMURA

IPC: 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，其包括布置有电流通路的布置区域，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：US20130293224A1

公开(公告)日：2013-11-07

申请号：US13939075

申请日：2013-07-10

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Yasuo KOTERA ,  Manabu TAMURA ,  Hisanori KIYOMATSU

IPC: G01R31/28 ,  G01R19/10

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执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：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：US20130162245A1

公开(公告)日：2013-06-27

申请号：US13659723

申请日：2012-10-24

Applicant: Alps Green Devices Co., Ltd.

Inventor： Manabu TAMURA

IPC: G01R33/025

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：US20130106412A1

公开(公告)日：2013-05-02

申请号：US13719067

申请日：2012-12-18

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Masatoshi NOMURA ,  Manabu TAMURA

IPC: G01R33/00

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：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：US20140097826A1

公开(公告)日：2014-04-10

申请号：US14098367

申请日：2013-12-05

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Hiroyuki HEBIGUCHI ,  Shinji MITSUYA ,  Manabu TAMURA ,  Ryuji MUKAIYAMA

IPC: G01R19/00

CPC classification number: G01R19/00 ,  G01B7/10 ,  G01R15/20 ,  G01R15/202 ,  G01R15/207 ,  G01R21/08

Abstract: A current sensor includes first and second current paths each including a first conductive portion and second and third conductive portions extending in the X direction from both ends of the first conductive portion, and being neighboring and apart in the Y direction; and first and second magnetoelectric conversion elements arranged with the first conductive portion of the first current path interposed therebetween, and having sensitive axes along the Y direction. The second and third conductive portions of each of the first and second current paths are apart in the Z direction. The second conductive portion of the second current path is arranged in the Y direction with respect to the first and second magnetoelectric conversion elements. Perpendicular lines from the center line of the second conductive portion of the second current path to the first and second magnetoelectric conversion elements have the same direction and equivalent lengths.

Abstract translation: 电流传感器包括第一和第二电流路径，每个电流路径包括第一导电部分和从第一导电部分的两端沿X方向延伸的第二和第三导电部分，并且在Y方向上相邻和分开; 以及第一和第二磁电转换元件，其间配置有第一电流通路的第一导电部分，并且沿着Y方向具有敏感轴。 第一和第二电流路径中的每一个的第二和第三导电部分在Z方向上分开。 第二电流路径的第二导电部分相对于第一和第二磁电转换元件沿Y方向排列。 从第二电流路径的第二导电部分的中心线到第一和第二磁电转换元件的垂直线具有相同的方向和等效的长度。

公开(公告)号：US20130154631A1

公开(公告)日：2013-06-20

申请号：US13766677

申请日：2013-02-13

Applicant: Alps Green Devices Co., Ltd.

Inventor： Manabu TAMURA

IPC: G01R19/00

CPC classification number: G01R19/0038 ,  G01R15/207 ,  G01R19/0053

Abstract: A current sensor includes: a conductive member through which a current to be measured flows; first and second magnetic sensors which output output signals having reversed phases to each other due to an induction magnetic field from the current to be measured; and a control unit which performs differential operation on the output signal of the first magnetic sensor and the output signal of the second magnetic sensor, wherein sensing axis directions of the first magnetic sensor and the second magnetic sensor are fixed in the same direction, form a predetermined angle with respect to an application direction of the induction magnetic field from the current to be measured applied to the first magnetic sensor and the second magnetic sensor, and are fixed so that the induction magnetic fields are applied to the first magnetic sensor and the second magnetic sensor in reverse directions to each other.

Abstract translation: 电流传感器包括：流过待测电流的导电部件; 第一和第二磁传感器，其由于来自待测电流的感应磁场而输出具有反相的输出信号; 以及控制单元，其对第一磁传感器的输出信号和第二磁传感器的输出信号进行差分运算，其中检测第一磁传感器和第二磁传感器的轴方向在相同方向上固定，形成 相对于施加到第一磁传感器和第二磁传感器的被测电流的感应磁场的施加方向的预定角度，被固定为使得感应磁场被施加到第一磁传感器，第二磁传感器 磁传感器彼此相反。

公开(公告)号：US20130154630A1

公开(公告)日：2013-06-20

申请号：US13766664

申请日：2013-02-13

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Masatoshi NOMURA ,  Manabu TAMURA

IPC: G01R19/257

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。