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Christopher,<br>
<br>
I agree, the blue supply, should be your first option. The little
supply on Digikey only puts out 200ma; not enough for more than one
board, and a bit anemic at that.<br>
<br>
I'm using the Jameco MeanWell RD-35A (***@4A + ***@1A) on 3 different
backplanes. As long as your supply does not require the 12v &
24v outputs to be loaded, in addition to the 5v output, I'd say it
looks ideal.<br>
<br>
I believe I have heard of the Jameco RD-50A (***@6A + ***@3A) being
used with the 12-slot backplane.<br>
<br>
--John<br>
<br>
[RD-35A spec'd at 80mv ripple on the 5v supply from 0.3-4A. I
measure 50mv ripple on the MC68030 CPU board; but I don't know how
accurate my VOM is at that low level.]<br>
<br>
<br>
<br>
<br>
On 08/16/2015 06:34 PM, Andrew Bingham wrote:
<blockquote
cite="mid:28030228-0675-44be-89e7-***@googlegroups.com"
type="cite">
<div dir="ltr">When I asked John C. about this in the past, his
rule-of-thumb was about 0.5A @ 5V per board. Â So the 5V channel
on the supply you linked, at 4A, would be good for about 8
boards.
<div><br>
</div>
<div>You could go with an external supply like this
-Â <a class="moz-txt-link-freetext" href="http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=2202870&catalogId=10001&CID=CAT152PDF">http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=2202870&catalogId=10001&CID=CAT152PDF</a>
or
<a class="moz-txt-link-freetext" href="http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=379623&catalogId=10001&CID=CAT152PDF">http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=379623&catalogId=10001&CID=CAT152PDF</a>
- and then you wouldn't need any power supply inside your
enclosure.<br>
<div><br>
</div>
<div>You could also get a small AC-to-5V enclosed supply -
something like
-Â <a class="moz-txt-link-freetext" href="http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=323282&catalogId=10001&CID=CAT152PDF">http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=323282&catalogId=10001&CID=CAT152PDF</a>
- and wire that up. Â You probably want a fuse on the input,
so something like that is a good option to hook it up to
-Â <a class="moz-txt-link-freetext" href="http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=2189521&catalogId=10001&CID=CAT152PDF">http://www.jameco.com/webapp/wcs/stores/servlet/ProductDisplay?langId=-1&storeId=10001&productId=2189521&catalogId=10001&CID=CAT152PDF</a>
+ the fuses.</div>
<div><br>
</div>
<div>You want to make sure it's a regulated supply.</div>
<div><br>
</div>
<div>Andrew</div>
<div>
<div><br>
On Sunday, August 16, 2015 at 5:44:25 PM UTC-7,
Christopher Trumbour wrote:
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt
0.8ex; border-left: 1px solid rgb(204, 204, 204);
padding-left: 1ex;">
<div dir="ltr">So I don't have a spare working PC power
supply on hand to properly test my builds with. I DO,
however, have a spare one of <a
moz-do-not-send="true"
href="http://www.jammaboards.com/store/12a-arcade-switching-power-supply-w-24vdc-md-9916a-24v.html"
target="_blank" rel="nofollow">these</a>, which I
can make cable to use with my N8VEM SBCV2 and ECB
Backplane-8. But would this be overkill, or not
enough? Also, it'd be a bit cumbersome to have nearby
without me getting a proper housing for the stuff,
which will be pretty big with the addition of this
power supply... or I could get something like <a
moz-do-not-send="true"
href="http://www.digikey.com/product-detail/en/VSK-S1-5U/102-2595-ND/3465373"
target="_blank" rel="nofollow">this</a> and wire it
up... or maybe there's a cheaper DIY solution I'm not
seeing?<br>
</div>
</blockquote>
</div>
</div>
</div>
</div>
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