Patent ID: 9063185
Filing Date: 2015-06-23
Classification: G01R,H01L

Abstract:
1. A current sensor comprising: a first magnetic sensor and a second magnetic sensor disposed around a current line through which a current to be measured flows, the first and second magnetic sensors detecting an induction magnetic field applied thereto from the current to be measured, the first magnetic sensor having a first main sensitivity axis and a first sub-sensitivity axis perpendicular to the first main sensitivity axis, and the second magnetic sensor having a second main sensitivity axis and a second sub-sensitivity axis perpendicular to the second main sensitivity axis, wherein the first magnetic sensor and the second magnetic sensor are disposed such that the first main sensitivity axis is oriented in a direction of the induction magnetic field applied to the first magnetic sensor, the second main sensitivity axis is oriented in a direction opposite to a direction of the induction magnetic field applied to the second magnetic sensor, the first and second main sensitivity axes are oriented in a same direction, and both of the first sub-sensitivity axis and the second sub-sensitivity axis are oriented in a respective direction either the same as or opposite to a direction of a sub-sensitivity axis component of an adjacent induction magnetic field applied to the first magnetic sensor and the second magnetic sensor, respectively, from an adjacent current flowing through an adjacent current line adjacent to the current line.