If the voltage from both supplies are about the same and the resistors on the tubes are the same.. the brightness will be about the same. I don't see how there would be a difference.
Regards, -Moses On Friday, August 19, 2022 at 3:12:00 PM UTC-7 [email protected] wrote: > Hello, > > As mentioned in one of my previous posts, I'm building a nixie clock with > Dalibor's RZ568M tubes. > > The idea is to make the base as thin as possible and to achieve that I am > using two power supplies, each with a transformer that is about 6mm tall. > > If I build a clock with 6 tubes and 2 colons, I can allocate 3 tubes + 1 > colon to each power supply and the brightness is nicely balanced. > > If I build a clock with 4 tubes and 1 colon divider, then I am not sure if > I should allocate 2 tubes + 1 colon to a power supply and 2 tubes only to > the other power supply. If I do so, the brightness in the 2 tubes only will > be different than in the 2 tubes connected to the colon. I could use PWM to > adjust brightness but let's assume that I just do direct drive with no PWM. > > I thought, is it possible to put two HVPS in parallel as you'd do with the > batteries to increase overall current for a higher load? I don't think > that's possible with DC/DC boost converters as it messes up the voltage on > the top resistor of the voltage divider/feedback loop. I can always try and > experiment but wanted to hear any suggestions before frying two power > supplies. > > I have built a larger power supply that can take all 6 Nixies etc but the > transformer is much taller of course, so I am not using that one. > > I could add a third mini power supply just for the colon, but it seems > overkill to have 3 power supplies! > > Any thoughts? > > Thanks, as always. > Max > -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/28dc3079-a49a-4fdb-aa23-03ecaaf82037n%40googlegroups.com.
