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US 2026/0066867 A1Published application
Multilayer common mode filter
AssigneeAmotech Co., Ltd.
InventorByungguk LIM
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Abstract
A multilayer common mode filter of the present disclosure has a filter stack configured by stacking, underneath a coil stack comprising a plurality of coils configuring mutually different channels, a stack provided with a capacitor pattern, a floating pattern, an inductor pattern, and a ground pattern, wherein resonance frequency characteristics may be changed according to the inductor pattern.
Claims13
A multilayer common mode filter comprising:
- a first stack provided with a first coil pattern, a second coil pattern, and a third coil pattern;
- a second stack provided with a fourth coil pattern, a fifth coil pattern, and a sixth coil pattern, and disposed under the first stack;
- and
- a third stack disposed under the second stack,
- wherein the third stack comprises:
- a plurality of capacitor patterns disposed under the second stack;
- a floating pattern disposed under the plurality of capacitor patterns, and configured to form additional capacitance by overlapping the plurality of capacitor patterns;
- a ground pattern disposed under the floating pattern;
- and
- an inductor pattern disposed between the floating pattern and the ground pattern, and
- wherein a first end of the inductor pattern is connected to the floating pattern, and a second end of the inductor pattern is connected to the ground pattern.
8 more elements
Dependencies are inferred from the claim text.