Enter —a specialized class of design tools that bridges the gap between theoretical circuit requirements and physical manufacturing realities.
The software calculates the core cross-sectional area ($A_e$) and magnetic path length ($l_e$). By inputting the voltage and maximum duty cycle, the software determines the peak flux density ($B_max$) using the fundamental equation: ferrite core transformer calculation software
$$ l_g = \frac\mu_0 \cdot N^2 \cdot A_eL - \fracl_e\mu_r $$ Enter —a specialized class of design tools that
| User Type | Best Software | | :--- | :--- | | | TDK Ferrite Magnetic Design Tool (free) | | Consultant / Small biz | Magnetics Designer ($495) | | Professional SMPS engineer | PExprt by Ansys | | Need a buyable part today | Coilcraft online tool | Unlike iron powder cores, ferrite requires careful handling
If you design flyback, forward, push-pull, or LLC converters, you know that ferrite transformer design is the most tedious part. Unlike iron powder cores, ferrite requires careful handling of air gaps, saturation flux density (Bsat), and core losses at high frequencies. Here is how the top software tools compare.
Most flyback and high-power converters store energy in the core, requiring a discrete air gap. Software calculates the necessary gap length ($l_g$) to achieve the target inductance ($L$) while preventing saturation.
Ferrite core transformer calculation software is no longer a luxury; it is a necessity for modern power supply design. As efficiency standards (like DoE Level VI) become stricter and switching frequencies increase to achieve miniaturization (GaN and SiC technologies), the margin for error shrinks.