UCC25600: How to plot this function from seminar

Ahmed Salama

Part Number: UCC25600

Hello,

i would like to plot this function from seminar, but i dont know how to do it. I already calculated components for power supply.

What program do you used to do this please? I have no idea what this symbol "ll" stands for. If its in parralel with than i dont know how to use it in program like geogebra . It always says invalid input.

thanks for help

fo = 100khz Re = 29,47 ohm Lm = 77,4uH Lr = 25,8 uH Cr = 100nF

www.ti.com/.../slup263.pdf

over 3 years ago

0 Benjamin Lough over 3 years ago

TI__Mastermind 26225 points

Hi Ahmed,

I don't think the screenshot made it into your post unfortunately. Could you re-paste the image?

We typically offer excel calculators for LLC that can calculate gain curves for your power stage. Here is one example:https://www.ti.com/lit/zip/sluc675

Best Regards,

Ben Lough

0 Ahmed Salama over 3 years ago in reply to Benjamin Lough

Prodigy 130 points

Hello Ben,

thanks for excel calc. Here are screenshots. One for formula and another from one guy "Grossel" electro-tech-online.com that helps me yesterday. If i wanna plot it is neccesary to have complex number in eq? Plotter like geogebra shows nothing. Thanks

0 Benjamin Lough over 3 years ago in reply to Ahmed Salama

TI__Mastermind 26225 points

Hi Ahmed,

Apologies, looks like the pictures aren't making it into your posts. I think you may be asking about how to plot the gain curves (please correct me if I am wrong.).

Let me know if this is what you are looking for an example of doing this in excel. /cfs-file/__key/communityserver-discussions-components-files/196/LLC-Curves.xlsx

Best Regards,

Ben Lough