Thanks, it gave me more knowledge about routing around the inductor and feedback trace. While I was using different chip, it still could potentially have problems with improper feedback routing. Making a circuit on perfboard has one advantage - traces are usually made from wire or a healthy amount of tin, which have greater current capability than usual 35um PCB traces, even if they are 2mm wide.
I have to redesign my PSU PCB to utilize a solid ground plane, that is also the key - my PCB was one sided (much easier to do at home than two sided). On one sided it is practically impossible to make proper ground routing. W dniu piątek, 14 lipca 2017 14:34:56 UTC+2 użytkownik Paul Andrews napisał: > > This page has good layout guidelines. it includes the reasons, so you can > figure out what applies to other designs: > http://desmith.net/NMdS/Electronics/NixiePSU.html. The data sheets for > some of the converter chips are also good sources of layout design. I'm at > the point in my own learning curve where I want to experiment with this > stuff, so I'm trying to figure out how to do that whilst not being hit by > the layout restrictions. Breadboard inc is clearly out of the question > because of stray capacitance, inductance and poor contact resistance. I've > built someone else's design on perfboard, and it has behaved very well - it > at least produces enough voltage and current to drive what I needed (not > nixies). So I am hopeful with some of the lower clock rate designs. > > We will see :) > -- 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/1e0ac4a8-620c-48c3-981f-c206aa1e2f2a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
