https://wiki.eugenemakerspace.com/index.php?action=history&feed=atom&title=Electronics_Sandbox 2026-04-03T17:54:30Z Revision history for this page on the wiki MediaWiki 1.39.7 https://wiki.eugenemakerspace.com/index.php?title=Electronics_Sandbox&diff=25458&oldid=prev 2025-10-15T05:00:38Z

<p>Added SupportingPeripheral and Archived categories</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 05:00, 15 October 2025</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 24:</td> <td colspan="2" class="diff-lineno">Line 24:</td> </tr> <tr> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td> </tr> <tr> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>-- Main.ClifCox - 2010-11-16</div></td> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>-- Main.ClifCox - 2010-11-16</div></td> </tr> <tr> <td colspan="2" class="diff-empty">&#160;</td> <td class="diff-marker">+</td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td> </tr> <tr> <td colspan="2" class="diff-empty">&#160;</td> <td class="diff-marker">+</td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Archived]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty">&#160;</td> <td class="diff-marker">+</td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:SupportingPeripheral]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty">&#160;</td> <td class="diff-marker">+</td> <td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>__NOINDEX__</div></td> </tr> <!-- diff cache key mediawiki:diff:wikidiff2:1.12:old-1929:rev-25458:1.10.0 --> </table>

Sfosteriam https://wiki.eugenemakerspace.com/index.php?title=Electronics_Sandbox&diff=1929&oldid=prev 2018-10-22T23:07:50Z

<p>Move page script moved page <a href="/index.php?title=ElectronicsSandbox&amp;action=edit&amp;redlink=1" class="new" title="ElectronicsSandbox (page does not exist)">ElectronicsSandbox</a> to <a href="/Electronics_Sandbox" title="Electronics Sandbox">Electronics Sandbox</a>: Rename from TWiki to MediaWiki style</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 23:07, 22 October 2018</td> </tr> <!-- diff cache key mediawiki:diff:wikidiff2:1.12:old-1624:rev-1929:1.10.0 --> </table>

Move page script https://wiki.eugenemakerspace.com/index.php?title=Electronics_Sandbox&diff=1624&oldid=prev 2011-01-13T20:44:04Z

<p>Imported from TWiki</p> <p><b>New page</b></p><div>= Electronics Sandbox =<br /> <br /> a place to share ideas<br /> <br /> == Bootstrap supplies ==<br /> <br /> I've been dabbleing in the SMPS arena, and might need some low power high voltage bootstrap supplies for a project. I'm thinking of baseing them on Roman Black's very minimalistic converter: http://www.romanblack.com/smps/smps.htm Which is based on [http://www.idcomm.com/personal/ottosen Richard Ottosen's] [http://www.romanblack.com/smps/smps_ric.gif SMPS].<br /> <br /> Now my friend Gary says I should just get an dev kit like the [[Media:ElectronicsSandbox.sluu068c-1.pdf|SLUU068C]] for $100 and add beefy power blocks to it.<br /> <br /> Here is my version of the 12V Black converter: [[Media:ElectronicsSandbox.black_12v_clean.png]] And the NGspice simulation: [[Media:ElectronicsSandbox.black_12v_gaw.png]] The turn on / off times are about 250 - 350ns.Compare the green trace with Roman's: http://www.romanblack.com/smps/cro.jpg<br /> <br /> Clif, your circuit seems to alternate long and short cycles somehow, the trace does not look like Roman's.Yes Robert, it's called PWM and for the load it has on it which is somewhat different than Roman's example, this is the pattern it uses to regulate the voltage. It's caused by the fixed off time and that it falls a little bit behind on the short cycle but makes up for it on the long one. If I turned up the current draw I think they would even out.<br /> === Notes: ===<br /> * [[Garys Stuff]]<br /> * [[Code Models]]<br /> === Links: ===<br /> <br /> Small DC-DC modules:<br /> * [[Media:ElectronicsSandbox.tdc_hpr1xxc.pdf|TDC_HPR1xxC]]<br /> <br /> Chip level controlers<br /> * http://www.powerint.com/<br /> <br /> -- Main.ClifCox - 2010-11-16</div>

Clif