Hello, Thanks for your answer. I was thinking more about a high frequency transformer used in the led drivers but in aliexpress or so they don't put any spec. I would like to buy 100 or so therefore parts of old radios or so is not possible. The idea would be go from 5v to 170v@12 mA
Best regards, Jose El 13/7/2015 18:52, "John Rehwinkel" <[email protected]> escribió: > > I would like to use a transformer for generating the high voltage needed > for the nixie tubes instead of a boost converter approach. > > There are a couple of custom 50/60Hz units out there for that purpose that > provide a low voltage winding for the logic and a high voltage one for the > nixies. > > > I was thinking to use a high freq. transforcer (because is smaller) and > basically rectify the output. But... honestly I was looking a bit around > and I can not find anything easy. > > > > I heared that could be possible with a simple audio transformer, but > after cheking that I see that most of them are 1:1... > > Look for a 1000Ω:8Ω output transformer. They got used in the old Radio > Shack kits with a 1-transistor blocking oscillator to produce high voltage. > > Würth Electronics offers some 1:1:1:1:1:1 transformers that can be > configured in various ways. Possibly paralleling two windings as the > primary, > with the remaining four windings in series as the secondary, would give > you some voltage boost with an off-the-shelf part. > > For more step-up from commonly available parts, ordinary CCFL transformers > offer ratios from 1:50 to 1:100. > > One last idea is to get an ordinary inductor with plenty of turns on it to > serve as a secondary, and wind a few turns on it to serve as the primary. > > Let me know if you have any questions. > > - John > > -- > You received this message because you are subscribed to a topic in the > Google Groups "neonixie-l" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/neonixie-l/NchB4jYwR2o/unsubscribe. > To unsubscribe from this group and all its topics, 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/7E8D14B9-9ABD-4099-9809-6E69D60F89BF%40mac.com > . > For more options, visit https://groups.google.com/d/optout. > -- 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/CAOLvi-b8J210CQEac%2BizQPC-HLUDYsgFXQ-m2duxp7fLHpdqjg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
