TinySwitch4 transfomer design
Posted by: mikem3652
on
Hi. I am new at a company and some of the legacy products at this company use the TinySwitch-4 in fly-back topology with the transformer polarity windings from primary to secondary wound in the same direction and voltages in-phase. When I review the TinySwitch-4 datasheet and when I run some designs with PI expert using this same topology, the transformer has the winding polarities between primary and secondary with opposite polarities so voltages are out-of-phase. So as a question, the products do work but what, if any, are there adverse effects that may add stress to components? Does this impact efficiency? Thanks.
Hi Mike,
First of all, thank you for using PI's product.
According to the description, the transformer winding construction seems to be in phase, which should be a forward topology, do you have an inductor at the output before the capacitor? Is there a de-magnetizing winding in the transformer?
It would be very helpful if you can share the schematic.
Thank you!