| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a voltage sensor having good assembly adaptability to circuit boards at a low cost. SOLUTION: A first magnetic core 11 of a magnetic material has an E-shape, a center core 11b and side cores 11c, a coil 17 in which a detected current flows is wound around a coil bobbin 15 disposed near the periphery of the center core 11b of the first core 11, a magnetic-electric converter element 21 is opposed to the center core 11b of the first core 11 to output a voltage corresponding to the magnitude of a magnetic field applied to the first core 11 from the detected current flowing in the coil 17, a second magnetic core 19 is magnetically coupled with the first core 11 and encloses the magnetic-electric converter element 21 with the first core 11, and a circuit board 13 mounts the first core 11 and the magnetic-electric converter element 21.</p> |
