Secondaries

The Secondaries design form displays the specifications of the transformer secondary windings. The number of design form tabs corresponds to the number of design outputs.

Output Tabs

Parameters of each output are collected on the separate tab. For every output you can view the specified Voltage, Actual Voltage, the Number of turns and Layers. You can view or edit the Wire size, Winding Type and the Wire type by clicking the corresponding calculator icon . Clicking the user-selected icon restores the values calculated by PI Expert.  

Winding Order

The Winding Order area of the Secondaries design form allows you to change the order of the windings. The order in which windings are wound on the bobbin can change the efficiency of the coupling between primary and secondary. PI Expert tries to choose the best winding order given the specifications entered for the secondaries.

The windings are arranged from bottom to top according to the order in which they will be wound on the bobbin and according to the drawing in the Transformer Construction tab. You can change the order of  secondary windings by pressing black up and down arrow controls for the selected output. Click Default to restore to the order originally chosen by PI Expert.