Electronics > Projects, Designs, and Technical Stuff
Design of SMPS - Not sure what these spikes are being caused by.
b_force:
Still missing a snubber in this circuit.
Zog:
I think I mentioned that :)
The original one is there C11 and R7.
b_force:
--- Quote from: Zog on May 20, 2018, 10:47:33 am ---I think I mentioned that :)
The original one is there C11 and R7.
--- End quote ---
I am talking about a snubber across the MOSFET.
Zog:
Of course.
Please read back a few pages.
It has been mentioned :)
Indeed it has even been drawn ! :)
Edit: this is the droid you are looking for master skywalker
https://www.eevblog.com/forum/projects/design-of-smps-not-sure-what-these-spikes-are-being-caused-by/msg1550420/#msg1550420
P.S. do you have any clues as to why a center tap would reduce the amps out ? ;D
b_force:
--- Quote from: Zog on May 20, 2018, 11:13:38 am ---Of course.
Please read back a few pages.
It has been mentioned :)
Indeed it has even been drawn ! :)
Edit: this is the droid you are looking for master skywalker
https://www.eevblog.com/forum/projects/design-of-smps-not-sure-what-these-spikes-are-being-caused-by/msg1550420/#msg1550420
P.S. do you have any clues as to why a center tap would reduce the amps out ? ;D
--- End quote ---
Ok, my apologies.
It's not showing in the schematic in your last post, so that's a little confusing ;)
With the center tap probably something has to do with halving the inductance maybe
With a center tap I would suggest using a higher value.
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