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<p>Thanks dudes! It helps to know what to search for. Now I can make
my supplies. You're the best!<br>
</p>
<p>--TimR<br>
</p>
<div class="moz-cite-prefix">On 4/16/2019 12:30 AM, Jarno
<a class="moz-txt-link-abbreviated" href="mailto:Verhoeven@ziggo.nl">Verhoeven@ziggo.nl</a> wrote:<br>
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<div>+1 to Neils' suggestion, for instance, look at the schematic
for the CPS150 power supply.</div>
<div> </div>
<blockquote type="cite" style="position: relative; margin-left:
0px; padding-left: 10px; border-left: solid 1px blue;">Op 16
april 2019 om 9:18 schreef Neil Johnson
<a class="moz-txt-link-rfc2396E" href="mailto:neil.johnson71@gmail.com"><neil.johnson71@gmail.com></a>: <br>
<br>
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#ccc solid; padding-left: 1ex;">
<div dir="auto">Google for
<div dir="auto"> </div>
<div dir="auto">Mutual shutdown power supplies</div>
<div dir="auto"> </div>
<div dir="auto">Larger mixing desk power supplies
often have this function. Check the power supply
section in Self's SSAD. </div>
<div dir="auto"> </div>
<div dir="auto">Neil</div>
<div dir="auto"> </div>
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<br>
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<div class="gmail_attr" dir="ltr">On Tue, 16 Apr 2019,
04:09 Tim Ressel, < <a
href="mailto:timr@circuitabbey.com"
target="_blank" moz-do-not-send="true">timr@circuitabbey.com</a>>
wrote: </div>
<blockquote style="margin: 0 0 0 .8ex; border-left:
1px #ccc solid; padding-left: 1ex;">Yo, <br>
<br>
I am putting together a power supply for my new 5U
case. At first I just <br>
have 7815 and 7915 regulators. But then it occurred
to me: would it not <br>
be indeed nice to have both rails fold back if one
over currents? to <br>
answer my own question, why yes, yes it would. <br>
<br>
So now to make it work. I thought of using LM317 and
LM337s and do a <br>
cross-over thing. Use an op-amp to servo off of a
virtual ground set up <br>
with a voltage divider. I am not sure if that will
do what I want. I <br>
guess I can try it with the 'L' versions; easier to
put into foldback. <br>
<br>
I also thought of using LM723s but that gets
complicated in a hurry. <br>
More than I want. <br>
<br>
Thoughts? <br>
<br>
--Tim (musing aloud) Ressel <br>
<br>
-- <br>
--Tim Ressel <br>
Circuit Abbey <br>
<a href="mailto:timr@circuitabbey.com"
target="_blank" moz-do-not-send="true">timr@circuitabbey.com</a>
<br>
<br>
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<pre class="moz-signature" cols="72">--
--Tim Ressel
Circuit Abbey
<a class="moz-txt-link-abbreviated" href="mailto:timr@circuitabbey.com">timr@circuitabbey.com</a></pre>
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