Does the winding direction of high-power inductors affect the inductance?
Release time: 2021-05-18
How does the winding direction of high-power inductance affect the inductance?
The winding inductance is often accompanied by a mark (mark) that can identify the direction.
If the structure of the high-power inductor is not completely symmetrical, the characteristics of the high-current chip inductor manufacturers will be different in the packaging direction. Therefore, in order to make the product give full play to its due characteristics during use, the product is often marked with marks to indicate its directivity.
Influence of inductance and magnetic field in winding direction of High-power inductors?
1, the high-power inductance is different packaging direction will lead to a substantial change in the inductance value of the winding inductor.
2, package direction and the rate of change of inductance value
High-power inductors perform their functions by storing energy in a magnetic field. However, the inductance is not only affected by the electromagnetic energy generated by itself, but also by the external magnetic flux. The inductance value of the guaranteed component refers to the value in the absence of external magnetic flux. Therefore, high-current magnetic bar inductors may not perform as well as they should when encapsulating inductors in the presence of external magnetic flux. As a typical example, multiple inductors are packaged in very close proximity.
3, is the change in the inductance value when multiple chip power inductors are closely arranged for packaging.
4, package distance and the rate of change of inductance value
High power inductors produce magnetic flux. This magnetic flux radiates outward, and this energy is lost. If multiple inductors are tightly packed together, the magnetic flux radiated by each inductor will interfere with each other and cannot achieve the desired product characteristics.
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