Patent ID: 9201101
Filing Date: 2015-12-01
Classification: G01D,G01R,G01V

Abstract:
1. A current sensor comprising: a first current path having a pair of main surfaces, the first current path including a first region and a third region between which the first current path is twisted, each of the first and third regions having a plate-like shape; a second current path parallel to the first current path, the second current path having a pair of main surfaces, and including a second region and a fourth region between which the second current path is twisted, each of the second and fourth regions having a plate-like shape; a pair of first magnetic sensors arranged in the first region on the respective main surfaces therein such that the pair of first magnetic sensors have respective sensing axes parallel to each other and also parallel to the respective main surfaces in the first region, the pair of first magnetic sensors being configured to sense a magnetic field generated by a target current flowing through the first region; and a pair of second magnetic sensors arranged in the fourth region on the respective main surfaces therein such that the pair of second magnetic sensors have respective sensing axes parallel to each other and also parallel to the respective main surfaces in the fourth region, the pair of second magnetic sensors being configured to sense a magnetic field generated by a target current flowing through the fourth region, wherein the main surfaces in the second region are perpendicular to the sensing axes of the pair of first magnetic sensors, and the main surfaces in the third region are perpendicular to the sensing axes of the pair of second magnetic sensors.