Common mode filter and power supply device having the same
AssigneeLG Innotek Co., Ltd.
InventorYong Hee LEE
Life of this patent
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Abstract
A common mode filter and a power supply device having the same are provided. The common mode filter includes a first inductor having a first winding number, a second inductor facing the first inductor and having a second winding number, a first intermediate terminal branching from an intermediate portion of a coil of the first inductor, and a second intermediate terminal branching from an intermediate portion of a coil of the second inductor. The effects of two filters are obtained from one common mode filter and the volume is reduced, so that a light, thin, short, and short module is provided.
Claims16
A common mode filter comprising:
- a first inductor having a first winding number;
- a second, inductor facing the first inductor and having a second winding number;
- a first intermediate terminal branching from an intermediate portion of a coil of the first inductor;
- and
- a second intermediate terminal branching from an intermediate portion of a coil of the second inductor.
A power supply device comprising:
- a filter unit comprising a common mode filter to receive AC power to remove a common mode noise;
- a transformer unit receiving an output of the filter unit to generate DC power;
- and
- an output unit outputting the DC power of the transformer unit to an outside.
- wherein the common mode filter comprises:
- a first inductor having a first winding number;
- a second inductor facing the first inductor and having a second winding number;
- a first intermediate terminal branching from an intermediate portion of a coil of the first inductor;
- and
- a second intermediate terminal branching from an intermediate portion of a coil of the second inductor.
Dependencies are inferred from the claim text.