On Thu, 10 Jul 2008, John Doty wrote: > On Jul 9, 2008, at 10:02 PM, David Griffith wrote: > > > I need some help with a high-voltage power supply. It must provide > > 1200 volts from two D cells. The general design is an oscillator > > chops up the DC, feeds it to an audio transformer, and then on to a > > diode-capacitor ladder. There also needs to be a point on the ladder > > that provides 920 volts. I can't seem to get anywhere with Spice on > > figuring out the right values. Can someone point me to a tested > > schematic that meets my needs? Or how about a resource on just how to > > go about designing this sort of power supply? > > There's a pretty good analysis of this kind of circuit at: > > www.blazelabs.com/CWdesign.pdf
Thanks! I think that'll do the trick. It looks like it has Mathematica or Maple commands, but I can't be sure. Hmm... > > I have a schematic that will do 920V from a 9V battery, but it suffers > > from high drain if pushed to go to 1200. > > Maybe you need another stage in your Cockroft-Walton ladder. Probably. That file you referenced will give me a lot to go on. > > It uses a bog-standard XICON > > 42TM114-RC (15:1 with center taps). The schematic is here: > > http://frotz.homeunix.org/images/hwps.png. -- David Griffith [EMAIL PROTECTED] A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user