When we design a high frequency transformer for DC-DC converters like LC Series resonant converters or other resonant converters which behave as a constant current source when operated at certain switching frequency w.r.t to resonant frequency, we do consider ferrite core saturation but w.r.t to input voltage not w.r.t to input current and for that purpose we usually use following equation to calculate primary No. of turns Np with VINmax as the maximum dc input voltage, Fs the switching frequency, Bac as the peak to peak AC swing of the magnetic flux density and Ae as the effective core area:

Np = VINmax/(2*Bac*Fs*Ae)

Here we select the flux density swing to be within saturation region. However we didn't include any information of input current in the above equation.

My question is that if the DC-DC converter is drawing let say 1A or 1000A, would that make any difference on the saturation of the ferrite core? if Yes then how can we calculate the maximum allowable input current to avoid saturation?

Any Input will be high Appreciated