https://bitwizard.nl/wiki/index.php?action=history&feed=atom&title=Reducing_power_consumption_of_a_raspberry_Pi 2026-04-05T18:24:17Z Revision history for this page on the wiki MediaWiki 1.35.6 https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2898&oldid=prev 2014-08-18T11:59:39Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 11:59, 18 August 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://bitwizard.nl/shop/power-heat/dc-dc-step-down-conv switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://<ins class="diffchange diffchange-inline">www.</ins>bitwizard.nl/shop/power-heat/dc-dc-step-down-conv switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2897:rev-2898:1.13.0 --> </table>

Rijk https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2897&oldid=prev 2014-08-18T11:27:43Z

<p><span dir="auto"><span class="autocomment">Introduction</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 11:27, 18 August 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [<del class="diffchange diffchange-inline">https</del>://bitwizard.nl/shop/power-heat/dc-dc-step-down-conv switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [<ins class="diffchange diffchange-inline">http</ins>://bitwizard.nl/shop/power-heat/dc-dc-step-down-conv switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2896:rev-2897:1.13.0 --> </table>

Rijk https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2896&oldid=prev 2014-08-18T11:26:12Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 11:26, 18 August 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [<del class="diffchange diffchange-inline">http</del>://<del class="diffchange diffchange-inline">shop.</del>bitwizard.nl/power-heat/dc-dc-step-down-conv switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [<ins class="diffchange diffchange-inline">https</ins>://bitwizard.nl<ins class="diffchange diffchange-inline">/shop</ins>/power-heat/dc-dc-step-down-conv switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2895:rev-2896:1.13.0 --> </table>

Rijk https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2895&oldid=prev 2014-08-18T10:49:01Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 10:49, 18 August 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://<del class="diffchange diffchange-inline">www</del>.bitwizard.nl/<del class="diffchange diffchange-inline">catalog</del>/<del class="diffchange diffchange-inline">product_info.php?cPath=26&amp;products_id=99</del> switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://<ins class="diffchange diffchange-inline">shop</ins>.bitwizard.nl/<ins class="diffchange diffchange-inline">power-heat</ins>/<ins class="diffchange diffchange-inline">dc-dc-step-down-conv</ins> switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2894:rev-2895:1.13.0 --> </table>

Rijk https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2894&oldid=prev 2014-08-18T10:28:14Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 10:28, 18 August 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://www.bitwizard.nl/catalog/product_info.php?cPath=26&amp;products_id=99 <del class="diffchange diffchange-inline">|</del> switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://www.bitwizard.nl/catalog/product_info.php?cPath=26&amp;products_id=99 switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2893:rev-2894:1.13.0 --> </table>

Rijk https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2893&oldid=prev 2014-08-18T10:27:48Z

<p></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 10:27, 18 August 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a <del class="diffchange diffchange-inline">[</del>[http://www.bitwizard.nl/catalog/product_info.php?cPath=26&amp;products_id=99|switching regulator from our shop<del class="diffchange diffchange-inline">]</del>]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a [http://www.bitwizard.nl/catalog/product_info.php?cPath=26&amp;products_id=99<ins class="diffchange diffchange-inline"> </ins>|<ins class="diffchange diffchange-inline"> </ins>switching regulator from our shop]. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2698:rev-2893:1.13.0 --> </table>

Rijk https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2698&oldid=prev 2014-01-01T14:45:17Z

<p><span dir="auto"><span class="autocomment">Further reduction</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 14:45, 1 January 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 23:</td> <td colspan="2" class="diff-lineno">Line 23:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Further reduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Further reduction =</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>A further power reduction can be achieved by tying the 5V and 3V3 lines both to the 3.3V DCDC converter (and obviously removing the 5V one). Everything that depends on the 5V will stop working, but most of the 'pi will work. What won't work <del class="diffchange diffchange-inline">is</del> devices depending on the 5V powersupply on the GPIO, HDMI and the USB connectors.<del class="diffchange diffchange-inline"> </del></div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>A further power reduction can be achieved by tying the 5V and 3V3 lines both to the 3.3V DCDC converter (and obviously removing the 5V one). Everything that depends on the 5V will stop working, but most of the 'pi will work. What won't work <ins class="diffchange diffchange-inline">are</ins> devices depending on the 5V powersupply on the GPIO, HDMI and the USB connectors.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Conclusion =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Conclusion =</div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-2697:rev-2698:1.13.0 --> </table>

Rew https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=2697&oldid=prev 2014-01-01T14:42:50Z

<p><span dir="auto"><span class="autocomment">Conclusion</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 14:42, 1 January 2014</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 21:</td> <td colspan="2" class="diff-lineno">Line 21:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:benchtop.jpg|none|thumb|300px|alt=The resulting current draw|The resulting current draw]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:benchtop.jpg|none|thumb|300px|alt=The resulting current draw|The resulting current draw]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:Final_setup.jpg|none|thumb|300px|alt=The final working setup|The final working setup]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:Final_setup.jpg|none|thumb|300px|alt=The final working setup|The final working setup]]</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><br /></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>= Further reduction =</div></td> </tr> <tr> <td colspan="2" class="diff-empty diff-side-deleted"></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>A further power reduction can be achieved by tying the 5V and 3V3 lines both to the 3.3V DCDC converter (and obviously removing the 5V one). Everything that depends on the 5V will stop working, but most of the 'pi will work. What won't work is devices depending on the 5V powersupply on the GPIO, HDMI and the USB connectors. </div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Conclusion =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Conclusion =</div></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-1701:rev-2697:1.13.0 --> </table>

Rew https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=1701&oldid=prev 2012-08-14T06:16:21Z

<p><span dir="auto"><span class="autocomment">Slicing the Pi</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 06:16, 14 August 2012</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 10:</td> <td colspan="2" class="diff-lineno">Line 10:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Slicing the Pi =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Slicing the Pi =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>To make sure the linear regulator stopped wasting power, we completely removed it from our Pi, with a hot air <del class="diffchange diffchange-inline">gun</del>. To do this, we <del class="diffchange diffchange-inline">griped</del> the regulator with some metal tweezers, <del class="diffchange diffchange-inline">lifted</del> the Pi about a <del class="diffchange diffchange-inline">centimeter</del>, and then <del class="diffchange diffchange-inline">blasted</del> the regulator with air at <del class="diffchange diffchange-inline">422</del> degrees Celsius. After a few seconds, the Pi <del class="diffchange diffchange-inline">dropped</del> to the table, and the regulator was removed:</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>To make sure the linear regulator stopped wasting power, we completely removed it from our Pi, with a hot air <ins class="diffchange diffchange-inline">rework station</ins>. To do this, we <ins class="diffchange diffchange-inline">grip</ins> the regulator with some metal tweezers, <ins class="diffchange diffchange-inline">lift</ins> the Pi about a <ins class="diffchange diffchange-inline">centimetre</ins>, and then <ins class="diffchange diffchange-inline">blast</ins> the regulator with air at <ins class="diffchange diffchange-inline">about 400</ins> degrees Celsius. After a few seconds, the Pi <ins class="diffchange diffchange-inline">drops</ins> to the table, and the regulator was removed:</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:No_LM1117.jpg|none|thumb|300px|alt=There used to be an LM1117-33 at this spot...|There used to be an LM1117-33 at this spot...]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:No_LM1117.jpg|none|thumb|300px|alt=There used to be an LM1117-33 at this spot...|There used to be an LM1117-33 at this spot...]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-1700:rev-1701:1.13.0 --> </table>

Rew https://bitwizard.nl/wiki/index.php?title=Reducing_power_consumption_of_a_raspberry_Pi&diff=1700&oldid=prev 2012-08-14T06:14:45Z

<p><span dir="auto"><span class="autocomment">Introduction</span></span></p> <table class="diff diff-contentalign-left diff-editfont-monospace" 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 06:14, 14 August 2012</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>= Introduction =</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>= Introduction =</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a <del class="diffchange diffchange-inline">$2 </del>switching regulator from <del class="diffchange diffchange-inline">ebay</del>. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>The Raspberry Pi relies on a linear regulator for its 3V3 rail. This dissipates a third of the energy as heat, which is a bit of a waste, if you want to power your Pi from an battery. Our solution: Replace the linear regulator with a <ins class="diffchange diffchange-inline">[[http://www.bitwizard.nl/catalog/product_info.php?cPath=26&amp;products_id=99|</ins>switching regulator from <ins class="diffchange diffchange-inline">our shop]]</ins>. We also used another regulator for the 5V power, to test powering a Pi from a car battery.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>[[File:switcher.jpg|none|thumb|300px|alt=One of our switching regulators|One of our switching regulators]]</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <!-- diff cache key wikidb:diff:wikidiff2:1.12:old-1438:rev-1700:1.13.0 --> </table>

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