| 摘要 |
PROBLEM TO BE SOLVED: To provide a current sensor capable of suppressing a cost and decreasing size.SOLUTION: A current sensor 1 includes: as shown in Fig. 1(a) and Fig. 1(b), a bus bar 3 in which a current 2 to be detected flows; a core 4 which surrounds the bus bar 3, and is formed with a gap 40 at a part thereof; a hall element 54 which is arranged in a gap 40 of the core 4, detects a magnetic flux 25 of the gap 40 generated with the current 2 flowing in the bus bar 3, and outputs a non-linear detection signal Sin an area in which the magnetic flux 25 in the core 4 is magnetically saturated, and a control portion 55 which converts the non-linear detection signal Soutputted from the hall element 54 into a linear conversion signal S.SELECTED DRAWING: Figure 1 |
