PURPOSE: A magnetic signal transfer apparatus is provided to induce electromotive force by attaching a core that a coil is wound around the inner and outer portion of a partition wall and inducing the magnetic flux, which is induced in a first circuit, to a second circuit through the partition wall. CONSTITUTION: A magnetic signal transfer apparatus includes a signal transmission unit(110) which has a feeding core and a feeding wire which is wound around the feeding core and is connected to input power; a detecting unit(120) which has a collecting core and a collecting wire, which is wound around the collecting core and is connected to the load; and a partition wall(130) which is positioned between the feeding core and the collecting core. The collecting wire is induced by the magnetic flux, which is generated from the feeding wire, and then generates the induced electromotive force.
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