Thanks for all input, it made me think twice about the one-PSU design, I'll check it more thoroughly after work!
> > Wow ! That's over 100 dekatrons ! Whatcha mak'n ? > I'm designing a clock! But with far from 100 dekatrons, but enough to need a hefty PSU. I might get away with 450V but that is at the lower end of the specifications for the dekatrons I'm using, and old dekatrons tend to need a voltage at the specified level or a little above that. If I add it all up with all cold cathode trigger valves the minimum necessary current (at its maximum) will be a bit below 50mA but I'd like to have some headroom. I'm driving a few Nixies too at this voltage which adds to it. I am also thinking about using several smaller switching PSUs as there is really no demand for it being one PSU. It would just be nice to have it as one PSU, the design is modularized and it could be split between a few PSUs without too much trouble. If a single PSU needs a beefier inductor and several power mosfets in parallel it might actually be easier to make a few PSUs and let them drive just a few dekatrons each instead of one large PSU powering it all, it might end up being cheaper too. It will be easier to spread the heat too from several smaller PSUs too. I just remembered that Ronald Dekker, www.dos4ever.com, had an interrsting article about switch mode PSUs and inductors, I'll read that too. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
