Thanks for the explanation and for what rectifiers to use, could only find them in spools of 5000 pieces in Sweden so I'll have to go shopping at Mouser or Digikey.
In my first attempts I found out that just one UF4007 was not enough to get more than some 20mA before it broke down so I looked at your first photo and saw two rectifiers in series there (at least I thought it was two in series) and tried it and it worked a lot better! Some Googling also showed this use of two in series. It says 50 kHz switching frequency in the datasheet for the RID-50B, so I guess that I'll get by with the UF4007s until I get hold of the STTH1R06A. I'll make one change when I have some more time and that is to move the second primary winding down so that the high voltage winding will be on the outside. Mean Well uses snubbers to get rid of the spike you mention. /Martin On Sunday, 25 October 2015 01:47:21 UTC+2, taylorjpt wrote: > > I'm using two STTH1R06A in series. The switchers usually operate between > 50 an 100kHz so you want to keep the reverse recovery time below 50nS. > 25nS or better at the low currents used is pretty easy to find. Just as > important is the reverse voltage rating as these need to support the > difference betwee the output voltage and the negative voltage during the > primary on time which is worst at maximum input voltage. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/74579f14-fbc5-4074-970b-0291b91654fa%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
