| 摘要 |
PROBLEM TO BE SOLVED: To provide a current sensor capable of measuring a current value with high accuracy without separating a current path that is an object to be measured, and a circuit board capable of measuring the current value of a current flowing in wiring with high accuracy.SOLUTION: A current sensor 1 has an element circuit board 10, magnetic detection elements 20a and 20b provided on a surface 10a, and external connection terminals 31-34 connected to the magnetic detection elements 20a and 20b and extending in a direction that intersects the surface 10a. The element circuit board 10 has a pair of inclined planes extending in the same direction in a planar view of the surface 10a, the pair of inclined planes having their interval progressively decreasing in a direction going from the other face toward the surface 10a, the magnetic detection elements 20a and 20b being provided on the pair of inclined planes, respectively, sensitive directions Da and Db of the magnetic detection elements 20a and 20b being set to incline along the pair of inclined planes, respectively. |
