Current sensor

摘要

A current sensor includes a first current path including a first flat-shaped portion, and a first magnetoelectric conversion element arranged on the first current path and configured to detect magnetism generated when a current to be measured flows through the first current path, wherein the current sensor measures the current to be measured of a device to which the first current path is connected, a first conductive convex portion is provided, in the first current path, in a direction in which the current to be measured flows, and the first magnetoelectric conversion element is arranged at a position on the first current path, at which a magnetic flux density due to the current to be measured of a minimum frequency used in the device and a magnetic flux density due to the current to be measured of a maximum frequency used in the device substantially coincide with each other.

主权项

1. A current sensor for measuring a current of a device having a frequency between a minimum frequency and a maximum frequency, the current sensor comprising:
a first current path having a first end to be connected to the device such that the current to be measured flows through the first current path, the first current path including:
a first flat-shaped portion having a first side and a second side extending in a direction in which the current to be measured flows therethrough; anda first protrusion provided on the first side of the first flat-shaped portion and extending along the first side such that the first current path has an L-shaped cross-section; and a first magnetoelectric conversion element provided on the first current path and configured to detect a first magnetism generated by the current to be measured flowing through the first current path, the first magnetoelectric conversion element being disposed at a first position on the first flat-shaped portion having the first protrusion, wherein a minimum frequency magnetic flux density of the first magnetism generated by the current to be measured having the minimum frequency and a maximum frequency magnetic flux density of the first magnetism generated by the current to be measured having the maximum frequency are substantially the same at the first position.