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Posted by Mark Lloyd on May 5, 2008, 4:14 pm
On Mon, 5 May 2008 09:48:49 -0400, "Stormin Mormon"
>The benefit of providing DC for lighting, is that you can feed DC from both
>ends of the wire.
>
AC should do this is wall as DC, it's just the phase (rather than
polarity) you have to pay attention to. I know I have seen circuits
with multiple AC sources connected together.
>Of course transformer delivers AC, but I didn't feel like asking "does the
>module containtaing a transformer have a rectification circuit, so that it
>would provide DC, or is it simple secondary winding, providing 60 hertz AC
>low voltage output"?
>
>--
>Christopher A. Young
>Learn more about Jesus
> www.lds.org
>.
>
>
>Stormin Mormon wrote:
>> Do the transformers supply AC or DC for the 12 volt power?
>>
>That seems an odd way to pose such a question. A transformer without
>more will _always_ provide AC. Provision of DC requires what I would
>call a power supply, rather than a transformer.
>
>Rarely would one go to the trouble to provide DC for lighting -- what's
>the benefit?
--
Mark Lloyd
http://notstupid.laughingsquid.com
"Unlike biological evolution. 'intelligent design' is
not a genuine scientific theory and, therefore, has
no place in the curriculum of our nation's public
school classes." -- Ted Kennedy
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