Jonathan
'Alaba Baju' via neonixie-l <[email protected]> wrote:
Hi people!,
Thanks to whoever approved my group joining request :)
-- Thanks to whoever approved my group joining request :)
I own a few tubes, the IN-1 and the IN-9. Never powered a nixie device before, I'm building a switch mode boost converter and I have a few questions please! I understand the IN-1 needs about 170v to light up and about 133v to stay on. One thing I've noticed though is that most people only seem to build switching supplies for the higher voltage. I don't understand! On all the threads no one seems to talk about how the power supply lights it up at 170v and then dials back to maintaining voltage! I'm imagining I'll need to provide both the 170v and 133v levels in my circuit. I'm building a clock/stopwatch with 4 tubes and I'll want to sometimes switch it from HH:MM to MM:SS . The digits on hours wouldn't change much, so I plan to light them up on the 170v line and then switch them to the 133v line. The digits on seconds though I imagine would not spend enough time lit to necessitate switching to a maintaining voltage.
Is my reasoning wrong? It's just that I don't seem to see any threads talk about them this way! Also the SMPS for nixies I see mostly just have a 180v line.
If you knowledgeable lot do see it reasonable to provide two voltage lines for my nixies, then could people suggest methods they'll take to do this? Is there a more energy efficient way of doing this than simply a resistor based voltage divider on the 170v output? The annoying thing about doing two SMPS is that I'll need two separate power sources to my circuit so I don't create a short circuit. Not pleased.
I was considering using a transformer for isolation and use one power source for two SMPS, but using transformers seem to have a lot of drama, or maybe I'm just lazy?
I'll love to hear thoughts. Thanks!
Is my reasoning wrong? It's just that I don't seem to see any threads talk about them this way! Also the SMPS for nixies I see mostly just have a 180v line.
If you knowledgeable lot do see it reasonable to provide two voltage lines for my nixies, then could people suggest methods they'll take to do this? Is there a more energy efficient way of doing this than simply a resistor based voltage divider on the 170v output? The annoying thing about doing two SMPS is that I'll need two separate power sources to my circuit so I don't create a short circuit. Not pleased.
I was considering using a transformer for isolation and use one power source for two SMPS, but using transformers seem to have a lot of drama, or maybe I'm just lazy?
I'll love to hear thoughts. Thanks!
.... and Google keeps thinking I'm trying to spell 'pixies' when I type 'nixies' ! :D :D
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