On 13 Jan 2016 07:39:28 -0800, you wrote:
>Hi all,
>
> could any member in this forum to design portable dc/dc power supply with +/- 6v +/-12v voltage?
Your easiest path would be to find pre-built modules that
supply the required voltage and current.
Your next easiest path would be to check out application notes
and designer software. TI's web-bench software is rather good at
this, but you'll need to be able to design PC boards and have them
made.
I'd recommend modules.
Oh, and it would be very helpful when you ask if anyone can
design a power supply to also tell us how much current is needed for
each output. You also don't specify what the main power source is:
battery? Wall charger? Car voltage? line voltage?
Harvey