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Transformers and Inductors for Electronics Applications

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Example Inputs


Figure 1: Example inputs (EC52 core and bobbin).

Example Results

ShapeOpt Results: Optimized Winding Design

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Optimal Winding Shape

Optimal Winding Shape


Magnetic Field
Click on figure for a larger view.

Total B field arrow plot - gap at (0, bw/2), Plane parallel to core Total B field - Plane parallel to core

Magnitude of B contour plot - gap at (0, bw/2), Plane parallel to core Magnitude of B - Plane parallel to core

Total B field arrow plot - gap at (0, bw/2), Plane perpendicular to core Total B field - Plane perpendicular to core

Magnitude of B contour plot - gap at (0, bw/2), Plane perpendicular to core Magnitude of B - Plane perpendicular to core

Plots of the magnetic field in the winding area (the gap is at (0, bw/2) in each plot). The first two figures plot the magnetic calculated magnetic field using traditional the flux path calculation. The lower two plots use an improved method to calculate the flux path that may reduce error. For an explanation of the method, see A. F. Hoke and C. R. Sullivan, " An Improved Two-Dimensional Numerical Modeling Method for E-Core Transformers ."


Optimal Winding Information

Number of strands 226
∫∫ B2⋅dS over winding area 4.84089e-09 T2⋅m2
Average turn length 0.129317 m

Power Loss

AC loss 1.14717 W
DC loss 1.47424 W
Total loss 2.62142 W


Winding Shape Animation