J
Joerg
Tim said:Not even in the note that says "5.6k + 47pF"???
Whoops, didn't see that, was looking in your text. And shouldn't it say
snubbered, snubberated or snubberificated?
Best to put them on the schematics. 47pF is almost nothing. Are you sure
this quenches ringing enough?
Voltage on both sides, yes. Current, no. I soppose recovery current
could be interesting; of course, that will be snubbed quite
effectively by leakage, so it will certainly be finite...
Hmm, I know the peak overshoot. I should be able to estimate peak
current from that, if I know LL and C. Meh, it'll probably be within
50% of "it all comes from the primary", which isn't accurate enough
to estimate recovery.
UF4007 is rated for 20-30A peak. ...
That's for non-repetitive.
... They aren't heating up very much,
at least until failure. Do you think it could be peak current?
Possibly, because at 75nsec trr these are fairly slow. Since you
probably don't want to spring for four of those Cree super thingamagics
which would totally raid the beer kitty, why the 2x10mH common mode
choke? Tried separate chokes yet?
Of course, if you came into a wad of cash:
http://www.cree.com/products/pdf/C2D05120.pdf
BTW, for better schematics drawings you can use the free edition of
Cadsoft Eagle, as long as it's hobby and not for profit use. Later when
you want to buy it for business it's rather inexpensive. Not like Orcad.