stupid idea? probably...=[
Sorry if this is a little newbie.
Im trying to build a power supply for my carputer at the moment, and i have found what I hope will be a half decent solution for a power regulator using a flyback design.
I was thinking to step up first to around 15 V,
then down to 12V,
off the +12V i was going to go +5V and to +3.3V.
I am hoping 3 * LM2586 will give me enough current.
From what i have scibbled on paper it seems like it will be a fairly simple circuit. however im still not sure if I should step up before stepping down. Will this give me a more stable supply?
I really don't have the best knowledge of electronics, but surely looking around there seems to be more options for DIY power supplys. Why is it that the Sproggy maxim chip design is the only one that people seem to consider? I personally am interested to see more alternatives like Freemans forward convertor. If any body can shed some light on this i would be quite grateful
sorry for the long post