One project I have on the back burner is a very small battery-powered nixie display. I thought that a variation of a power supply design that I had been using for everything else, would work fine. It turns out that the prototype of the power supply, which I had built a few years back, only worked because of a dry solder-joint somewhere on the mosfet (yes, I'm serious). The version I built specifically for this project quickly had everything overheating. When I went back and touched up the soldering on the prototype, it showed the same behavior. The culprit, BTW is pretty much down to the tiny 1:20 transformer. I have built variations of this design with bigger transformers that work very well.
There are a lot of variations of power supply design that I could mess with - obviously I have already scoured the internet on this topic - but that is the trouble. This project will never get finished if I have to run through multiple prototypes trying to find one that is small enough and that works. So I was wondering if anyone could just say 'use this design'. The constraints are: 1. It has to fit on a circular PCB the same diameter as the tube or less (about 17mm). 2. It has to provide around 150V-160V regulated output, or maybe just 'limited' output. 3. It only has to provide 1.5mA to 2mA. 4. It has to use a LiPo as the power source, so it should work at voltages between around 3.5V and 4.5V. 5. It has to use parts I can get from digikey (so no sourcing transformers from old cameras that I can't find for example). Surface mount components are fine... -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/b7050ccf-4c83-4e06-b919-bfe4631d4a7f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
