Check out this guys projects. He has an extremely efficient power supply that is built for 12V but will run on a 5v 1A USB Brick/Wall-Wart. It is an Open-source project with files on github. https://surfncircuits.com/
Collin > On Mar 9, 2019, at 14:49, newxito <axta...@gmail.com> wrote: > > I was using the good old MC34063 on all my boards but I just did a test with > the LT3757 (already mentioned in this group) using the high voltage flyback > power supply datasheet schematic with a DA2032 transformer. I’m really > impressed, 170V up to 69mA at 12V with around 86% efficiency, just a bit > warm, no audible noise. > > I’m not an electronic engineer, I don’t really know what I’m doing :-) So, > I’m sure that with a correct board design the efficiency could be improved. > > > > > -- > 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 email to neonixie-l@googlegroups.com. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/0f043704-27dd-4e04-aa56-78d8a9602c5f%40googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- 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/B3EE01EA-4F9B-4465-90AA-8BE54834FDE2%40gmail.com. For more options, visit https://groups.google.com/d/optout.