Learn electric motor design
Practical guides on the fundamentals — written for engineers who want to understand the physics behind the calculations.
What is winding factor and why does it matter in motor design?
Understand how the distribution factor and pitch factor combine to determine how efficiently a winding converts current into torque-producing flux.
Read article →MMF harmonics in three-phase AC windings
Learn how the spatial distribution of conductors creates a magnetomotive force spectrum — and why higher harmonics cause torque ripple and additional losses.
Read article →Integer-slot vs fractional-slot windings — when to use each
The slots-per-pole-per-phase ratio q determines fundamental winding behaviour. Learn the trade-offs between distributed and tooth-coil winding configurations.
Read article →How to read an electrical steel B-H curve
Decode the magnetisation curve: what saturation, permeability, and the hysteresis loop tell you about a steel grade's suitability for your motor core.
Read article →NdFeB magnet grades explained — remanence, coercivity, and energy product
A practical guide to navigating the N35 to N52 grade system, temperature class suffixes, and how to select the right magnet for your operating conditions.
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