{"id":135022,"date":"2022-02-01T01:23:11","date_gmt":"2022-02-01T09:23:11","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/02\/open-hardware-5v-ups-improves-on-cheap-powerbank-design"},"modified":"2022-02-01T01:23:11","modified_gmt":"2022-02-01T09:23:11","slug":"open-hardware-5v-ups-improves-on-cheap-powerbank-design","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/02\/open-hardware-5v-ups-improves-on-cheap-powerbank-design","title":{"rendered":"Open Hardware 5V UPS Improves On Cheap Powerbank Design"},"content":{"rendered":"<p><a class=\"aligncenter blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/open-hardware-5v-ups-improves-on-cheap-powerbank-design.jpg\"><\/a><\/p>\n<p>Often, we need to power a 5V-craving project of ours on the go. So did [Burgduino], and, unhappy with solutions available, <a href=\"https:\/\/www.reddit.com\/user\/soubitos\/comments\/rchcpu\/open_hardware_tp5400_dc_ups_design_files_in_link\/\" target=\"_blank\">designed their own 5V UPS!<\/a> It takes a cheap powerbank design and augments it with a few parts vital for its UPS purposes.<\/p>\n<p>You might be tempted to reach for a powerbank when facing such a problem, but most of them have a fatal flaw, and you can\u2019t easily tell a flawed one apart from a functioning one before you buy it. This flaw is lack of load sharing \u2013 ability to continue powering the output when a charger is inserted. Most store-bought powerbanks just shut the output off, which precludes a project running 24\/7 without powering it down, and can cause adverse consequences when something like a Raspberry Pi is involved.<\/p>\n<p>Understandably, [Burgduino] wasn\u2019t okay with that. Their UPS is based on the TP5400, a combined LiIon charging and boost chip, used a lot in simple powerbanks, but not capable of load sharing. For that, an extra LM66100 chip \u2013 an \u201cideal diode\u201d controller is used. You might scoff at it being a Texas Instruments part, but it does seem to be widely available and only a tad more expensive than the TP5400 itself! The design <a href=\"https:\/\/oshwlab.com\/catech75\/arduinouno-dc-ups_copy_copy\" target=\"_blank\">is open hardware<\/a>, with PCB files available on EasyEDA and the BOM clearly laid out for easy LCSC ordering.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Often, we need to power a 5V-craving project of ours on the go. So did [Burgduino], and, unhappy with solutions available, designed their own 5V UPS! It takes a cheap powerbank design and augments it with a few parts vital for its UPS purposes. You might be tempted to reach for a powerbank when facing [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523],"tags":[],"class_list":["post-135022","post","type-post","status-publish","format-standard","hentry","category-computing"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/135022","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=135022"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/135022\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=135022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=135022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=135022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}