Toroid Transformer Designer
Core Parameters
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ID (mm)
OD (mm)
Height (mm)
Ae (mm²) optional
Ve (mm³) optional
Fill factor
Windings
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+ Add Winding
Design
Design Transformer
Simulation
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Frequencies (Hz) — one per line or comma-separated
256 870 3140 8900
Loads [R, X] (ohms) — one pair per line: R or R,X
10 50 100 200 600 2000
Target power (W)
Power tolerance (%)
Vp min (V)
Vp max (V)
Vp steps
Constraints (expand)
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B max (T)
Vp max (V)
Vs max (V)
Ip max (A)
Is max (A)
P out max (W)
Ambient temp (°C)
Conv. coeff h (W/m²K)
Run Simulation
Operating Point
Primary tap
Secondary tap
Vp RMS (V)
Frequency (Hz)
Load R (Ω)
Load X (Ω)
Simulate
Cross-section Drawing
Run Design to see drawing
Operating Point Results
Simulation Results
Frequency:
Results Table
↓ Download CSV
P_out shading:
Met target
Near limit (>90%)
Over limit
Near/over applies to: B, Vs, Ip, Is, P_out