UCC28951: Power Supply

Hello,

I found this 2 kW reference design in the UCC28951 product that may be helpful to you.

https://www.ti.com/tool/PMP8740

The following link will bring you to an application note that goes through the step by step design process using the UCC28950/1 devcies.

There is a link to an excel file that will do the calculations for your design.

https://www.ti.com/lit/pdf/slua560

We also have Webench design tool.  You just input the input and output power requirements and the tool will generate a schematic and bill of materials for your design.  Just go to the UCC28951 product page and search on Webench. https://www.ti.com/product/UCC28951

Regards,

Hello,

The link to the excel file is in in the application note.  Just needed to click on excel design tool in blue text.  I have provided the link below as well to the same excel file.

https://www.ti.com/lit/zip/sluc222

Regards,

Hello,

If Ls is negative you don't need it to achieve ZVS.  You can use the leakage inductor for this.  

I would still leave a place h older for it just in case.  This is because your a selecting Ls base on theoretical switch capacitance.  In your actual design you may end up needing it.

Regards,

Mike

Hello,

You can find the excel design sheet in under design tools in the UCC28950/1 product folders.  The following link will get you to the excel file. https://www.ti.com/lit/zip/sluc222

Regards,