Dekatron power supply - maybe Mr Basic related?
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.
UPDATE:
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.
| Attachment | Size |
|---|---|
| ants_lib.lbr_.txt | 12.71 KB |
| dekatron_power_v1.sch | 233.7 KB |
@ Tue, 2009-06-02 04:22
dude!
@ Mon, 2009-06-01 03:18
Missing parts
That explains a few things. I admit I was not certain what was wrong without being able to take readings with a multimeter.
I look forward to seeing the result :D
@ Sun, 2009-05-31 18:59
Awesome. I built a Nixie
Awesome. I built a Nixie clock but it was from a kit. Eventually I'd like to try designing my own circuit for a Nixie-based display from scratch. I always liked Dekatrons too, didn't know they needed so much higher voltage though.
Dan
@ Mon, 2009-06-01 02:58
How did your clock turn out?
How did your clock turn out? I'm waiting on parts to get stuck into mine.
@ Tue, 2009-06-02 07:49
It turned out great. I love
It turned out great. I love it, and it gets constant compliments from visitors too. I'll definitely be doing more work with Nixie tubes and other similar technologies in the future.
Dan