LINE FILTER

摘要

PURPOSE: A line filter is provided to eliminate both noises of the common mode noise and the normal mode noise simultaneously. CONSTITUTION: The line filter comprises: a bobbin(2) having a penetrated hole(1); a coil(3) wound on the bobbin; another coil(4); a closed magnetic path core(5) inserted into the penetrated hole of the bobbin; a first noise elimination piece to eliminate the common mode noise(11); a second noise elimination piece to eliminate the normal mode noise(12). The bobbin has a middle flange part(6) to divide the one coil(3) and the other coil(4), and it made up of ferrite resin(that is a magnetic material). And the first noise elimination piece eliminates the noise by making the magnetic flux A and the magnetic flux B generated from the coils flow through the closed magnetic path core(5).