公开(公告)号：US09201101B2

公开(公告)日：2015-12-01

申请号：US14109691

申请日：2013-12-17

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Masatoshi Nomura

IPC: G01R33/02 ,  G01R19/00 ,  G01V3/08 ,  G01D5/12 ,  G01R15/20

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：US08970214B2

公开(公告)日：2015-03-03

申请号：US13665624

申请日：2012-10-31

Applicant: Alps Green Devices Co., Ltd.

Inventor： Manabu Tamura ,  Masatoshi Nomura ,  Hiroyuki Hebiguchi

IPC: G01R33/09 ,  G01R15/20 ,  B60L3/00 ,  B60L11/18 ,  G01R1/20 ,  G01R19/00

CPC classification number: G01R15/207 ,  B60L3/0038 ,  B60L11/182 ,  B60L11/1861 ,  B60L2240/549 ,  G01R1/203 ,  G01R19/0092 ,  Y02T10/7005 ,  Y02T10/7044 ,  Y02T10/705 ,  Y02T10/7072 ,  Y02T10/7088 ,  Y02T90/122 ,  Y02T90/14

Abstract: A current sensor includes a magnetic balance sensor including a feedback coil that is disposed in the vicinity of a magnetic sensor element whose characteristics are changed by an inducted magnetic field from a current to be measured and generates a cancellation magnetic field for offsetting the inducted magnetic field, a shunt resistant that is connected in series with a current line for circulating the current to be measured, and a switch circuit that switches to magnetic balance detection at the time of a small current and switches to shunt resistance detection at the time of a large current.

Abstract translation: 电流传感器包括磁平衡传感器，该磁平衡传感器包括设置在磁传感器元件附近的反馈线圈，该磁传感器元件的特性通过来自待测电流的感应磁场而变化，并产生用于抵消感应磁场的抵消磁场 ，与用于循环待测电流的电流线串联连接的分流电阻，以及在小电流时切换到磁平衡检测的开关电路，并在大时间切换到分流电阻检测 当前。

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：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。