Re: Voltage regulator?
From: Scott Wiper (nobody_at_devnull.spamcop.met)
Date: 06/08/04
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Date: Tue, 8 Jun 2004 18:34:27 -0400
"ATS Elect" <atss@mchsi.com> wrote in message
news:DERvc.14841$sI.5733@attbi_s52...
>I am working on a project that requires a supply 12 volts DC @ 500 ma. I
>have been using a wall wart to power it but now would like to find a
>minature soulotion that I can integrate onto the board for my next board
>run. Is there an minature, low cost component that will rectify and drop
the
>voltage from 110 v AC to 12 v DC? I already know that I can just use a
small
>wall wart and get a bigger case but I need something small, low cost &
>perferably TH mounted.
>Maybe there is a better solution you can share with me. Any would be
>appreciated!
>Thanks in advance!
Try this curcuit using transistors and a huge stepdown coil. All Component
values are on the schmatic. I hope this works for you. This will give two
voltages 13.8 and 5 volts with a battery backup
http://www.travel-net.com/~swiper/switch.gif
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