PMP4478: RC snubber

Hi Andre,

Here is a very useful article for calculating the snubber needed. https://e2e.ti.com/blogs_/b/powerhouse/archive/2016/05/05/calculate-an-r-c-snubber-in-seven-steps

Thanks,

Ryan

Hi Andre,

You can select the capacitor with the Equation:

and select the clamp resistor by

There are 2 papers for your reference.

1. Liu Shunlin, Cao Xiaosheng and Ma Yibo, Design and Analysis on Feedback Energy Loss of RCD

Clamping Flyback Converters, Proceedings of the CSEE, 2010-33

2. UCC28600 Datasheet,

Best Regards,

Linda Ye