| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a current sensor which can measure a high-voltage AC current without increasing the numbers of part items and man-hours. <P>SOLUTION: The current sensor includes: a magnetoelectric conversion element which is installed in a substrate so that its magnetosensitive surface is nearly perpendicular to the substrate; a circular core formed with a gap; a shield means having a first portion covering one side of the magnetosensitive surface, a second portion which is connected to the first portion and covers the other side of the magnetosensitive surface, and a third portion which extends from one sides of the first portion and the second portion and is connected to a ground pad on the substrate; and a first pressing means which is arranged between the first portion and a first end face facing the first portion out of both end faces constituting the gap in the core, is connected to the first portion, and presses the first end face, thereby establishing conduction between the core and the shield means. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
