| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a current sensor device capable of measuring both of a DC current and an AC current. <P>SOLUTION: The current sensor device comprises a magnetic ring 11 in which a conductive path 12 is disposed so as to pass through the inside of the ring, a coil 13 outputting a current monitor signal according to changes of a measured current passing through the conductive path 12, a direct current monitor portion 20 outputting a direct current monitor signal on the basis of the current monitor signal, an alternating current monitor portion 30 outputting an alternating current monitor signal on the basis of the current monitor signal, a switch circuit 50 outputting either one of the inputted direct current monitor signal or the alternating current monitor signal, and a control portion 40 outputting a control signal for switching the signal outputted from the switching circuit 50. The current sensor device capable of measuring both of the DC current and the AC current can be obtained. <P>COPYRIGHT: (C)2012,JPO&INPIT |
