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The talks last night were fantastic. Sorry to be a bit abrupt near
the end for the sake of saving a few minutes of the official time
for the rest of the program. Some folks come a long way to get to
meetings, have family and work obligations, etc, so we all should
all keep the clock in mind. At the same time we of course want to
avoid squelching questions and discussion. I think we're doing a
good job as an audience, so congrats to everybody for another
successful meeting.<br>
<br>
The slides are up now on the <a
href="http://triembed.org/blog/?page_id=62">archive page</a>. I'll
try to get the video compressed and on YouTube by the weekend. <br>
<br>
Finally, concerning the need for "hipot" testing of the separation
of copper pours. When you design a board for fab by <a
href="http://oshpark.com">OSH Park</a> you normally run their
design rule checks and these checks will flag violations such as two
pours or traces being too close together.<br>
<br>
-Pete<br>
<br>
<div class="moz-cite-prefix">On 8/11/2015 9:17 AM, Shane Trent via
TriEmbed wrote:<br>
</div>
<blockquote
cite="mid:CAAFjd3q8Z3BgFk2tXu_i_ezhgDzK0_UhHKxQ-avbS91YwR+OTw@mail.gmail.com"
type="cite">
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<div>Hi Gang,</div>
<div><br>
</div>
<div>Thanks for being such a great audience last night during my
presentation! The questions from the group were great and I
enjoyed the interaction. I recommend everyone pick a topic and
share some knowledge! </div>
<div><br>
</div>
<div>I sent Pete updated slides for posting on TriEbed.org. The
references on the last slide have links to where I pulled most
of the images. I added a line about BJT's susceptibility to
thermal runaway and the MOSFET's resistance to thermal
runaway. Google is your friend if you want details. </div>
<div><br>
</div>
<div>And I finally see why the I2C level converter must be
connected as shown in the diagram. </div>
<div><br>
</div>
<div><a moz-do-not-send="true"
href="https://cdn.sparkfun.com/assets/b/0/e/1/0/522637c6757b7f2b228b4568.png">https://cdn.sparkfun.com/assets/b/0/e/1/0/522637c6757b7f2b228b4568.png</a><br>
</div>
<div><br>
</div>
<div>To work the device must reverse bias the body diode when
both sides are at their highest voltage. So the diode must
point at the higher voltage to be reverse biased. It is a very
clever circuit.</div>
<div><br>
</div>
<div>Please ping the group if you want a clarification on
something or a general question. Feel free to send me a
private e-mail if you want to ask a confidential project
question. <br>
</div>
<div><br>
</div>
<div>Shane</div>
<div><br>
</div>
-- <br>
<div class="gmail_signature">
<div dir="ltr"><span
style="color:rgb(0,0,0);font-family:HelveticaNeue-Light,'Helvetica
Neue Light','Helvetica Neue',Helvetica,Arial,'Lucida
Grande',sans-serif;font-size:16px">A blog about some of my
projects. <a moz-do-not-send="true"
href="http://fettricks.blogspot.com/" target="_blank">http://fettricks.blogspot.com/</a></span><br>
</div>
</div>
</div>
<br>
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<pre wrap="">_______________________________________________
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<a class="moz-txt-link-freetext" href="http://mail.triembed.org/mailman/listinfo/triembed_triembed.org">http://mail.triembed.org/mailman/listinfo/triembed_triembed.org</a>
TriEmbed web site: <a class="moz-txt-link-freetext" href="http://TriEmbed.org">http://TriEmbed.org</a>
</pre>
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