CURRENT DETECTOR AND CURRENT DETECTION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a current detector handling DC current, which is generated in aliasing operation as a current to be measured, capable of reducing the possibility of erroneous detection.SOLUTION: A current detector 10 for detecting a current to be measured which flows on a conductor wire 40 includes: a detection section 11; and a determination section 12. The detection section 11 detects a current flowing on the conductor wire 40 by using an excitation current of each of plural frequencies. The determination section 12 determines whether or not the current flowing on the conductor wire 40 is the current to be detected based on the detection results detected by the detection section 11 on each of the plural frequencies.SELECTED DRAWING: Figure 1