I am trying to design a transformer with 1 turn at the primary and 10 turns at the secondary. For application purposes, I need a long wire at the primary and a large conductors at the secondary, which makes it difficult to consider a higher number of turn at the secondary. I do not care about losses as the transformer is not use during a significant time. It works at 500 kHz.
So I have a large leakage inductance at the primary and to not loose a lot of voltage due to the voltage divider between the magnetizing inductance and the leakage inductance, I need a large magnetizing inductance, so a high permeability core. It will also reduce the peak current at the primary if I have a high magnetizing inductor value and then it will reduce the effect of the leakage inductance. I need also to have a high density flux saturation Bsat
I am looking for a graph which shows the permeability of different magnetic materials in function of the frequency. Does anyone know a material that have a good permeability at those frequency and a high Bsat? Better than ferrite?
It is said that ferrites is good material for high frequency, i.e. that the permeability is still high for high frequency. But I know that the Bsat of ferrites is very low and the permeability is not very high compared to supermendur.
Have a nice day!