How to improve the withstand voltage of the magnetic ring inductor?

1.Replacing the common mode inductor winding method There are usually two winding methods for the common mode inductor of the magnetic ring. The first is the double-wire winding method: It needs to be wound with insulated wire and enameled. After the common mode inductor of the magnetic ring is successfully wound, the shape is somewhat similar to that of the differential mode inductor of the magnetic ring. The common-mode inductor with double-wire winding is suitable for low-voltage and high-current circuits. Using the double-wire winding method to wind the common-mode inductor cannot improve the withstand voltage performance of the inductor. The second is the double-wire winding method: two sets of enameled wires are required, or a set of enameled wires and a set of three-layer insulated wires can be used. The two windings are wound separately, and each set of windings is wound along one side of the magnetic core. Using the two-wire split winding method to wind the common mode inductor of the magnetic ring can greatly improve the withstand voltage performance of the common mode inductor.

2. Replacing the common mode inductor winding The magnetic ring common mode inductor uses a different winding, which will have different effects on the withstand voltage of the magnetic ring common mode inductor. When two sets of enameled wires are used for the magnetic ring common mode inductor, the thicker the wire diameter, the better the withstand voltage effect. The magnetic ring common mode inductor uses a set of enameled wires, and a set of three-layer insulated wires has a better withstand voltage effect.

3. The common mode inductance is added to the separator The method of adding the separator to the common mode inductor is only applicable to the two-wire split winding. For common mode inductors, a spacer can be added in the middle of the magnetic ring to obtain a better effect of increasing the withstand voltage.

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