TPS2812: An article on your company's website mentions this chip TPS2812D (50-W Push Full Converter Reference Design Using the UCC38085 (PR100B), some questions about absorption circuits

liujun

Part Number: TPS2812

Figure 1

How are the RC parameters of the two snubber circuits (R20, C16, R21, C17) of the push-pull converter in Figure 1 taken? How to calculate the power consumption of R in the snubber circuit?

In addition, in the traditional push-pull boost converter full bridge rectifier output circuit, how to calculate the power of the resistance snubber circuit in this similar circuit? Thank you!

8 months ago

0 Rubas Khalid 8 months ago

TI__Expert 5285 points

Hi liujun,

TI offers a lot of articles around designing snubber circuits. This technical article describes step-by-step on how you can calculate the values. I've also attached another file that goes over a similar approach on calculating values, and it shows how to calculate the power dissipation of a snubber circuit. Please let me know if these resources help.

8802.RC Snubber.pdf

Thanks,
Rubas