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How to design an RCD snubber?

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berni80

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rcd snubber

Hi,

could you please help me with a RCD snubber?
I need it to limit the drain spike voltage in a boost converter.

How design? Do you have any AN or doc?

I already read this from unitrode:
**broken link removed**

Thanks!
 

dipnirvana

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snubber rcd

I did calculated for flyback way back. i am attaching my matchcad file, just check in case it helps.

sorry the document was in very non-descriptive. :D as i made it for me , only
 

qolpa

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unitrode snubber

take a look



regards
 

FvM

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snubber boost converter

I don't see a meaningful application of a snubber in a standard boost converter circuit. Also no spike voltage should exist here, because it's directly cut by the output diode. Today's MOSFET have built-in zener protection and can handle voltage spikes without additional circuits.
 

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