>will this work for a power supply? The link says the output of the circuit as given is 85V / 85 microamps which is insufficient on both parameters to be useful for nixie work. The circuit topology could do the job, but you'll need to fiddle around significantly with the components to get 2 x the voltage and 20 x the current. And that's to drive one modest tube, never mind a full clock. Urgh.
Unless a large part of your motivation is tinkering with power supply designs (as opposed than lighting nixies and doing something cool with them), I wouldn't bother. Use one of the tried and tested designs floating round the group which you _know_ will give you what you need, and then you can cut straight to the interesting bit. I would recommend John Taylor's awesome modules, or Nicko's optimised MAX1771 design if you feel you have to do the soldering yourself (http:// www.desmith.net/NMdS/Electronics/NixiePSU.html). If component count / cost is totally at a premium and you are already using a microcontroller to do the clock bits, then using on-chip PWM and ADC modules to configure a minimal standard topology boost converter works very well. It also allows you to do stuff like vary the anode voltage under software control, which is useful for a test box (and totally unnecessary for a clock). My personal bottom line: John Taylor's modules have a spec which will allow you to do pretty much everything you'll want and the price is incredibly reasonable. On my latest design, the component cost alone for rolling my own supply with the required power output was more than it cost to buy a module - never mind all the time and effort saved. Why make life complicated? Cheers, Jon. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
