I tend to use laptop power supplies to interface with my projects - I am always picking up power supplies as laptops get replaced at work. They usually kick out 19.5v at 4 or 5 amps. I then design in a small switcher to bring that down to 5v for the using application, and put that on the board with the rest of the electronics. I have been using a small L4960 design for *many* years, which gets copied from project to project. That one doesn't get down to 3.3v, so I have had to find another one for more recent designs.
On Thursday, 30 June 2016 05:56:47 UTC+1, SWISSNIXIE - Jonathan F. wrote: > > If you dont want a wall brick, you could mount a power-supply with a cable > (like the laptop ones, that have a cable going to the laptop and one to the > mains socket) and directly mount that inside the clock case, maybe takes as > much space as a self designed Off-Line supply. There are even some around > that can supply different voltages. > > I worked with mains AC in my last job (230V up to 1000V), but i would > never make a project with mains ac because if i get injured, or my house > burns down, no insurance will cover that.. > -- 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/ec6c4287-c821-4cce-84e1-a34f66c1fde8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
