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<font face="Arial">Although, as far as I can tell, there is no
specification<font face="Arial">, I would have thought that a
proper EuroSynth system should have power rails with a tolerance
of 0.1V i.e. -12.1V to -11.9V or +11.9V to +12.1V.<br>
<font face="Arial">The approach below will lose 0.6V per rail
giving you at best +/-11.4V. As if there aren't enough issues
out there with lossy busboards, power solutions and other
related issues, lo<font face="Arial">sing 5% of your power
through these protection diodes seems excessive.</font></font><br>
</font></font>
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<p><font face="Arial, Helvetica, sans-serif" size="4">Best
Regards<br>
Laurie Biddulph<br>
Mobile: +61 0400 257 645<br>
Phone.: +61 02 4340 0938<br>
Web...: <a class="moz-txt-link-abbreviated" href="http://www.elby-designs.com">www.elby-designs.com</a><br>
Skype.: widgetoz </font> </p>
<p><font face="Arial, Helvetica, sans-serif" size="4">Elby
Designs<br>
9 Follan Close<br>
Kariong<br>
NSW 2250<br>
Australia</font></p>
<p><font face="Arial, Helvetica, sans-serif" size="4">ABN: 70
022 727 605</font></p>
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size="4"><img
src="cid:part1.B9C0AC55.C0ED02B0@ozemail.com.au" alt=""
height="365" align="middle" width="437"></font></p>
<p align="center"><font face="Highlight LET" size="6"> Happy New
Year</font> <br>
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<div class="moz-cite-prefix">On 4/01/2017 7:41 AM, Jacob Watters
wrote:<br>
</div>
<blockquote
cite="mid:CAKcdib2H_JKQLbJUzbhokR5yabvGibb+uVgYzLOredEV1g0Vrg@mail.gmail.com"
type="cite">
<div dir="ltr">Do you do anything to the power rails on your
modules to filter the power and/or protect the module?
<div><br>
</div>
<div>Diodes? Caps? Resistors?</div>
<div><br>
</div>
<div>Below is a link to one well protected module that was
recommended to me. Note that the power source is the pins on
P3 and the power rails are the local ones on the module (kind
of confusing in this schematic - it looks like the diodes are
backwards).</div>
<div><br>
</div>
<div>I know that the diodes will cause a voltage drop that will
limit the overhead for opamps. My module is a filter with an
overdrive circuit that clips at +/-5V, so overhead isn't
really a concern.</div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="http://jacobwatters.com/images/synth/europower.png">http://jacobwatters.com/images/synth/europower.png</a><br>
</div>
<div><br>
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<div><br>
</div>
<div>Thank you for your feedback and suggestions.</div>
<div><br>
</div>
<div><br>
</div>
<div>Sincerely,</div>
<div><br>
</div>
<div>Jacob Watters</div>
</div>
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</blockquote>
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