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5. Appendice
Here are some useful results for sizing forward transformers.
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Equal volumes of primary and secondary windings
Since n 2 = mn 1 , the length of the secondary winding is m times that of the primary winding, assuming that the primary and secondary turns have the same length.
If we adopt the same current density in the various windings, the wire cross-section of the secondary winding is 1/m times that of the primary.
The copper volume of the secondary winding is therefore equal to that of the primary; the total volume of the windings is double that of the primary (triple in the case of a three-winding forward transformer, if we adopt the two-wire-in-hand winding for the primary...
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Appendice
Bibliography
Also in our database
Software tools
Inductor Design Software, free inductor sizing software, publisher MAGNETICS https://www.mag-inc.com/Design/Design-Tools/Inductor-Design
Ferrite Magnetic Design Tool, free software for sizing inductors and transformers, EPCOS editor
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