The Resonant SMPS Design Tool

[bkl]

Hi，

I use The Resonant SMPS Design Tool for a powersupply design with an input of 90V-264Vac and output of 57Vdc/9A.But I can't understand something about the transformer.Please see the attached file.

There is one pin of TX1 connected to nothing.Is it the inductor for LLC?

And how does every pin correspond to the turns?

[guoweisun · Accepted solution]

计算软件发给你了，另外我看了设计软件变压器有点问题，悬空的那个变压器的脚就是Primary wind的一端连接到Cr上面的，另外57V的输出不建议用同步整流了因为这个TEA1995 VCC最大到38V这样不能直接用，用快恢复二极管替代可行？