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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You can use a voltage regulator like this:
https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_51334_-1<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>A regulator will waste the extra power as
heat but that's not so bad.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You may need some capacitors to smooth out
the power before and after this device.<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>What are you trying to power?<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p>&nbsp;</o:p></span></font></p>

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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
noisebridge-discuss-bounces@lists.noisebridge.net
[mailto:noisebridge-discuss-bounces@lists.noisebridge.net] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Sean Cusack<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, July 01, 2010 1:57
PM<br>
<b><span style='font-weight:bold'>To:</span></b>
&lt;noisebridge-discuss@lists.noisebridge.net&gt;<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Noisebridge-discuss]
N00b question - changing power supply voltage</span></font><o:p></o:p></p>

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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p>&nbsp;</o:p></span></font></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hey kids -<br>
<br>
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?<br>
<br>
Sorry if this one is likely obvious - but everyone can blame Mitch for getting
me way to into electronics for my own good :).<br>
<br>
Sean<o:p></o:p></span></font></p>

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