公开(公告)号：US20130307534A1

公开(公告)日：2013-11-21

申请号：US13951278

申请日：2013-07-25

Applicant: ALPS GREEN DEVICES CO., LTD.

Inventor： Hiroyuki HEBIGUCHI ,  Isao SATO ,  Takashi FUJISAKI ,  Mitsuo ARATONO ,  Akira TAKAHASHI ,  Masato NAKAMURA

IPC: G01R33/00

CPC classification number: G01R33/0005 ,  G01R15/205 ,  G01R33/06 ,  H01L43/08 ,  H01L2924/30107

Abstract: A current sensor includes first and second magnetic sensors that are placed around a current line through which a current flows so that the current line is positioned therebetween, and that detect an induction field generated by the current. Each of the first and second magnetic sensors has a main sensitivity axis and a sub-sensitivity axis. The direction of the main sensitivity axis of each of the first and second magnetic sensors is oriented in a direction that is not orthogonal to the direction of the induction field. The directions of the main sensitivity axes of the first and second magnetic sensors are oriented in the same direction and the directions of the sub-sensitivity axes are oriented in the same direction, or the directions of the main sensitivity axes are oriented in opposite directions and the directions of the sub-sensitivity axes are oriented in opposite directions.

Abstract translation: 电流传感器包括第一和第二磁传感器，其围绕电流流过的电流线放置，使得电流线位于其间，并且检测由电流产生的感应场。 第一和第二磁传感器中的每一个具有主灵敏度轴和副敏感度轴。 第一和第二磁传感器中的每一个的主灵敏度轴的方向定向在与感应场方向不正交的方向上。 第一和第二磁性传感器的主要灵敏度轴的方向定向在相同的方向上，并且副敏感性轴的方向被定向在相同的方向上，或者主要灵敏度轴的方向指向相反的方向，并且 副敏感轴的方向取向相反。