Common mode filter, signal passing module and method of manufacturing common mode filter
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United States of America Patent
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Jun 5, 2018
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N/A
app pub date -
Apr 30, 2015
filing date -
Apr 30, 2014
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Abstract
Disclosed herein is a common mode filter including: at least four coil layers, each layer having a primary coil and a secondary coil; and discontinuous parts made of an insulating material each extending between starting points of each of the primary coil and the secondary coil positioned on the lowest layer among the coil layers to ending points of each of the primary coil and the secondary coil positioned on the highest layer among the coil layers. The primary coils are connected in series from the lowest layer to the highest layer, and the secondary coils are connected in series from the lowest layer to the highest layer. The common mode filter is able to be miniaturized and has improved impedance characteristics.
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