[Noisebridge-discuss] N00b question - changing power supply voltage

[Ryan Castellucci]

How much current are you drawing?  TBH, you should really just go to
weird stuff and pick one up for a few dollars.  Another option would
be converting an ATX power supply to a bench supply.

On Thu, Jul 1, 2010 at 1:57 PM, Sean Cusack <sean.p.cusack at gmail.com> wrote:
> Hey kids -
>
> So, I've got a relatively simple dilemma that I sure pops up all the time
> for those of you that are way better at electronics than me. I've got a
> power supply providing a fixed 24V @ 4.5A, but I only want to use 12V of
> that for my circuit. I originally thought I could lower the voltage using a
> potentiometer, but because the power is so high, they all cost some serious
> bank. Is there another (not necessarily analog) solution to changing voltage
> and/or amperage through a circuit that is cheap to build?
>
> Sorry if this one is likely obvious - but everyone can blame Mitch for
> getting me way to into electronics for my own good :).
>
> Sean
>
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-- 
Ryan Castellucci http://ryanc.org/