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Explanation： This calculator can perform geometric calculations of the maximum flux density to verify that it is below a specified value for the transformer core so that the core is not saturated. This calculator is very useful for matching the core size to the power required.

Calculation formula:

B_max=B_max(AC)+B_max(DC)

B_max(DC)=(L*I_dc*10⁸)/(NA_c)

B_max= (V_rms*10⁸)/(4.44*F*N*A_c) +(L*I_dc*10⁸)/(N*A_c) gauss

Note: If no DC current is flowing, then the second formula is discarded.

Condition A_L(uH/100T²₎:

L=N²A_L(uH/100T²₎10^-4

B_max(DC)= (N*A_L(uH/100T²₎10⁴*I_dc)/(A_c)