Dekatron power supply - maybe Mr Basic related?
May 31, 2009
My entry for Mr Basic is going to be a 'retro light show bot' using nixie and dekatron tubes (wiki them). For these I need 170v for the nixie tubes, 70v for the neon bulbs and 450v for the dekatron tubes. I managed to make the 170v power supply that works well, but now I'm trying to make the 450v supply, and having some problems:
EDIT: c4 and c5 are 470nf 630v
Input voltage is 9v - 12v. The problem is in the inductor, if I try to turn the voltage up above 420v, the inductor fails, I think I need to get a physically bigger inductor, which I'll try today.
This is the current one I'm using http://www.jaycar.com.au/productView.asp?ID=LF1100&keywords=choke&form=KEYWORD notice the lack of specs from jaycar, typical.
I am a noob with this, so any any ideas on changes are welcome.
rename the library file (remove .txt) if you need it to open the eagle file.
The prblem was I was missing C5 on my breadboard. I have now made a pcb and all is good.
Thanks for you help Odd.