How does the winding direction of high power inductance affect the inductance?How should inductors respond?
The wound inductance is often marked with a discernible directivity.
If the structure of the high power inductor is not completely symmetrical, the large current SMT inductor manufacturer will produce characteristic difference in the packaging direction.Therefore, in order to make the product in the use of the process to give full play to its due characteristics, often marked on the product, in order to indicate its direction.
Influence of inductance and magnetic field on winding direction of high power inductance?
1, the high-power inductance is different packaging direction will lead to the winding inductance value of substantial change.
2. Change rate of packaging direction and inductance value
A high power inductor performs its function by storing energy in a magnetic field.However, inductance is not only affected by its own electromagnetic energy, but also by external magnetic flux.The inductance value of a guaranteed component refers to the value without external magnetic flux.Therefore, large current bar inductors may not perform as well as they should when packaged in the presence of external magnetic flux.As a typical example, multiple inductors are encapsulated very close together.
3. Is the change of inductance value when multiple SMT power inductors are closely arranged for packaging.
4. Rate of change between package distance and inductance value
High power inductors produce magnetic flux.This flux radiates outward, and this energy is lost.If multiple inductors are tightly packed together, the magnetic flux emitted by each inductor will interfere with each other, and the desired product characteristics cannot be achieved.
Post time: Sep-30-2020