The LT3757 looks quite like a nice ic, i will try it with the transformer *PA0367A *from Pulse elctronics, its quite small. Since its only availabe from digikey, i have to wait until i have an order big enough to order at digikey :/
Probably alot of people are not into new supplies because mostly (like in any other electronics project) the new and good IC's don't come in SOIC or DIP anymore, so you need to know how to solder leadless packages.... In a few other hobby projects i run into the problem that the ic of choice was only available as BGA... One thing about nixie power supplies is usually that the efficiency is alway given at like 50mA, but usually a normal nixie clock uses way less. Even 6 IN-18 would only require around 40mA supply. Smaller builds tend to use 25mA or even 15mA. Nearly every converter is inefficient at low currents, since the losses are in absoulte values not in percent. "loosing 5mA" at 50mA would give you give you 90%, but the same design probably also looses 5mA at 15mA output so that would be way more bad. Alot of people are fooled by this fact. I saw a quite cool design by linear technologies that has around 85% efficiency at 20mA Ouput, which is enough for a IN-8 clock or so. -- 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/65700759-1f64-4186-8780-81b195a731a2%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
