This overview demonstrates the first step in the planar transformer design process using PI Expert's Magnetics Designer tool. Using a 35 W automotive design example, it explains how to configure PCB margins, define winding and insulation layer stack-ups, introduce winding splits, and adjust turn distributions. The video also shows how winding layers can be repositioned within the Constructional Diagram to achieve the desired transformer structure.

The tutorial further covers modifying PCB enclosure properties, including layer count, insulation thicknesses, prepreg layers, and core materials. It highlights key considerations when moving winding layers, such as preserving connection layers and temporarily adding PCB enclosures to simplify layout changes. Together, these steps establish the physical foundation of a planar transformer design before electrical and pin-level optimization.