Those are impressive numbers. As I'm designing my own supply (getting about 90% efficiency for a boost from 12V to 180V at up to 80mA, will share the design once done), I'd be interested in knowing more about the design? Are you willing to share some information?
The biggest design problem I encountered was that the Nixie load can be highly variable (think dimming, multiplexing, etc), so with a booster design you can't just operate in Continuous Conduction Mode (CCM) all the time, which is what most high-power designs do. What's worse, the transition between CCM and DCM (Discontinuous Conduction Mode) is poorly defined. This is why I decided to finally use a smaller inductance and stay in DCM all the time, even with full load. Actually, is your design a boost at all? Or do you use a flyback transformer? When you measure output power, do you just stick a meter and measure average current/voltage, or do you do something fancy to take ripple into account? --J. On 12 sie 2013, at 06:45, taylorjpt <[email protected]> wrote: > > 77W test data: http://ppl.ug/A2EYKy2BwmY/ > > 383mA/201Vout at 36V input (48V abs max); Had to pre-load my load bank to > get over the 250mA limit. > > jt > > > > -- > 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 [email protected]. > To post to this group, send an email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/9944e216-7d04-4c1e-8a5f-8e37f5c4f687%40googlegroups.com?hl=en-GB. > For more options, visit https://groups.google.com/groups/opt_out. -- 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 [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/954448DA-D5B3-4F75-85A3-430D5B82EAF3%40gmail.com?hl=en-GB. For more options, visit https://groups.google.com/groups/opt_out.
