I put together a graph showing max output current for Vin and Vout: <https://lh3.googleusercontent.com/-8pejOajeLHg/WgY8MDxEqlI/AAAAAAAAAok/le0PNZvkQrEruRsbxQlIZjpnb9Jt0BcEgCLcBGAs/s1600/chart.JPG>
And a picture of it driving some IN-12 tubes (my test load of choice) at 177V from a LiPo battery: <https://lh3.googleusercontent.com/-U2xuMg7hwRI/WgY8kjmOqGI/AAAAAAAAAoo/dxplFc2-vR0W9_IK0swDUTasxl_wIIe6ACLcBGAs/s1600/IMG_1987.jpg> On Thursday, November 9, 2017 at 9:11:03 PM UTC-5, Paul Andrews wrote: > > Hi, > > I've been beavering away on a nixie tube power supply using an > off-the-shelf flyback transformer (I wanted to be able to use it in battery > powered clocks, but be able to use the same basic design in larger clocks > with a 12V supply). I've written the whole process up on hackaday.io > <https://hackaday.io/project/27899-nixie-tube-power-supply> if you are > interested. It works fine. It isn't in the same league as (for example) the > John Taylor power supply, but it is small, produces enough power for most > purposes (easily producing 20mA/200V with 12V in for example) and is pretty > feature rich - you can enable/disable it and vary the output voltage from > 0V to 200V either with a resistor or a PWM signal. > > My intention was really to have a design that I could integrate directly > into a clock PCB, rather than it be a standalone module, and one that I > could tailor to specific clocks - so for example I have a smaller version > that uses a smaller 1:20 transformer that works fine for four tubes being > driven from a LiPo or USB - but I *have* actually produced some boards > over at OSHPark. > > I hope you all don't think it is *too *bad an effort - I am no electrical > engineer - and if you are so inclined, feel free to use the design however > you like. > > - Paul > -- 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/0d3cb82d-e866-4539-8795-fcb004f0edb0%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
