Presumably you could also use the microcontroller to do so if it has a spare pin, by using a resistor in series with the filament power supply, which is then shorted out by a FET after a predetermined time.
Valve amplifiers used to do similar but with a time delay relay. David On Thu, 23 Jul 2020, 11:48 ZY, <[email protected]> wrote: > The chip I'm using is TPS54328, which has an adjustable soft start. I'm > still building my supply though, so I haven't actually tested it in action > yet to see if the soft start actually limits the inrush in any way. > > On Thursday, 16 July 2020 13:56:47 UTC-4, Paul Andrews wrote: >> >> What power supply are you using? I seem to collect power supply design >> almost as much as Nixie tubes. >> >> On Wednesday, July 15, 2020 at 11:20:23 PM UTC-4, ZY wrote: >>> >>> For my VFD filaments, I've settled on using a power supply module with a >>> configurable soft-start time. I've set it to something huge, like 10 >>> seconds, to try to limit the inrush current. >>> >> -- > 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/096a188d-eb05-4bda-986b-c42f8c80edf9o%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/096a188d-eb05-4bda-986b-c42f8c80edf9o%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- 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/CAOQ6x0Gga8dUESBJzHEhowZiPpJXu74wMWUYP29McEbq47C38A%40mail.gmail.com.
