Re: compound variable power supplies--possible?
- From: Sam Goldwasser <sam@xxxxxxxxxxxxxxxxxx>
- Date: 04 Apr 2006 21:25:14 -0400
whyzard@xxxxxxxx writes:
Can i take two wallwart power supplies (the AC to DC variety) and just
tie them together in series and parallel to make a cheap diy variable
powersupply.
I am thinking of getting a cheap variable DC 12V ($20 at Fry's), and
then adding a universal DC adapter with up to 12 v also. So if i wire
these in series or parallel or whatever, can i say add 3 v DC to 6 v Dc
to get a usable 9v DC? Or is there gonna be some law of electronics
broken?
If they are in series and both on, then it may work within their current
ratings.
But think about what happens if one of them is not powered on.
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