<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1436877118891_261716"><span id="yui_3_16_0_1_1436877118891_264847">Carl brings up an important point that I did not address. I was showing a concept not a final solution. You would want to change the source voltages and/or add a regulator/dc-dc just before the load.</span></div> <br><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font size="2" face="Arial"> On Wednesday, July 15, 2015 10:59 AM, Carl Nobile via TriEmbed <triembed@triembed.org> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv7489340889"><div><div dir="ltr">Dwight,<br clear="none"><div><br clear="none"></div><div>Both John's and Glen's suggestions will work, but as Glen suggested you'll need a regulated supply between the power supplies and the RPi 2 to bring the voltage down to 5V. The RPi can not be run on more that 5VDC or expect to see smoke from the RPi</div><div><br clear="none"></div><div>Carl</div><div><br clear="none"></div></div><div class="yiv7489340889gmail_extra"><br clear="none"><div class="yiv7489340889yqt9243624405" id="yiv7489340889yqtfd80429"><div class="yiv7489340889gmail_quote">On Wed, Jul 15, 2015 at 10:52 AM, Glen Smith via TriEmbed <span dir="ltr"><<a rel="nofollow" shape="rect" ymailto="mailto:triembed@triembed.org" target="_blank" href="mailto:triembed@triembed.org">triembed@triembed.org</a>></span> wrote:<br clear="none"><blockquote class="yiv7489340889gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div dir="ltr">Dwight, </div>
<div dir="ltr">I have a spare small (ish) ups that came with an old AT&T network modem. It outputs 12vdc, so it's higher than what you need, off the top of my head I don't know what the max input voltage is on the Pi. A DC to DC converter will bring it down to where you want it though. <br clear="none">
I kept it planning to do something like this myself, but 2 years in I still am just moving it around. </div>
<div dir="ltr">Glen</div>
<br clear="none"><div class="yiv7489340889gmail_quote"><div><div class="yiv7489340889h5"><div dir="ltr">On Wed, Jul 15, 2015, 10:13 AM Dwight Morgan via TriEmbed <<a rel="nofollow" shape="rect" ymailto="mailto:triembed@triembed.org" target="_blank" href="mailto:triembed@triembed.org">triembed@triembed.org</a>> wrote:<br clear="none"></div></div></div><blockquote class="yiv7489340889gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div class="yiv7489340889h5"><div lang="EN-US"><div><div class="yiv7489340889MsoNormal">Hi All:<u></u><u></u></div><div class="yiv7489340889MsoNormal"><u></u> <u></u></div><div class="yiv7489340889MsoNormal">I need a backup power supply for my Raspberry Pi 2. I don’t think I need something as large as those made for PCs. I think one more in line with that D cell powered one in my alarm clock or a little larger would work fine. <u></u><u></u></div><div class="yiv7489340889MsoNormal"><u></u> <u></u></div><div class="yiv7489340889MsoNormal">Anybody know how to make one or if there is one out there already? Feedback appreciated!<u></u><u></u></div><div class="yiv7489340889MsoNormal"><u></u> <u></u></div><div class="yiv7489340889MsoNormal">Thanks!<u></u><u></u></div><div class="yiv7489340889MsoNormal"><u></u> <u></u></div><div class="yiv7489340889MsoNormal">Dwight<u></u><u></u></div><div class="yiv7489340889MsoNormal"><u></u> <u></u></div></div></div></div></div>_______________________________________________<span class="yiv7489340889"><br clear="none">
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<br clear="none"></blockquote></div></div><br clear="none"><br clear="all"><div><br clear="none"></div>-- <br clear="none"><div class="yiv7489340889gmail_signature">-------------------------------------------------------------------------------<br clear="none">Carl J. Nobile (Software Engineer)<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:carl.nobile@gmail.com" target="_blank" href="mailto:carl.nobile@gmail.com">carl.nobile@gmail.com</a><div class="yiv7489340889yqt9243624405" id="yiv7489340889yqtfd48547"><br clear="none">-------------------------------------------------------------------------------</div></div><div class="yiv7489340889yqt9243624405" id="yiv7489340889yqtfd19624">
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