{"id":129,"date":"2011-05-18T15:55:39","date_gmt":"2011-05-18T22:55:39","guid":{"rendered":"http:\/\/www.robogourmet.com\/?p=129"},"modified":"2011-05-18T16:03:32","modified_gmt":"2011-05-18T23:03:32","slug":"power-distribution-boards","status":"publish","type":"post","link":"http:\/\/www.robogourmet.com\/?p=129","title":{"rendered":"Power Distribution Boards"},"content":{"rendered":"<p>One problem I&#8217;m constantly having in building medium-sized prototype robotics systems is power distribution. I&#8217;ve got enough sensors and things that I don&#8217;t want to have one massive wire junction tied into my power supply. Terminal blocks are sort of OK, but I&#8217;ve always felt they were a bit lacking and also didn&#8217;t provide any circuit protection. Recently, I&#8217;ve run across a few power distribution boards which look pretty nice and are pretty cheap, especially compared to the price of building a one-off.<\/p>\n<p><a href=\"http:\/\/www.robogourmet.com\/wp-content\/uploads\/2011\/05\/altronixPD8.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.robogourmet.com\/wp-content\/uploads\/2011\/05\/altronixPD8-150x150.jpg\" alt=\"\" title=\"Altronix PD8 Power Distribution Board\" width=\"150\" height=\"150\" class=\"alignnone size-thumbnail wp-image-130\" srcset=\"http:\/\/www.robogourmet.com\/wp-content\/uploads\/2011\/05\/altronixPD8-150x150.jpg 150w, http:\/\/www.robogourmet.com\/wp-content\/uploads\/2011\/05\/altronixPD8.jpg 300w\" sizes=\"(max-width: 150px) 100vw, 150px\" \/><\/a><br \/>\nThe <a href=\"http:\/\/www.altronix.com\/index.php?pid=2&#038;model_num=PD8\">Altronix PD8<\/a> (<a href=\"http:\/\/www.amazon.com\/gp\/product\/B0006ZKWOI\/ref=as_li_ss_tl?ie=UTF8&#038;tag=robog-20&#038;linkCode=as2&#038;camp=217145&#038;creative=399349&#038;creativeASIN=B0006ZKWOI\">Amazon<\/a><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.assoc-amazon.com\/e\/ir?t=&#038;l=as2&#038;o=1&#038;a=B0006ZKWOI&#038;camp=217145&#038;creative=399349\" width=\"1\" height=\"1\" border=\"0\" alt=\"\" style=\"border:none !important; margin:0px !important;\" \/>) comes out of the security industry (alarm systems) and which takes up to 28VAC\/VDC @ 10A as input on a pair of screw terminals and distributes it to 8 individually fused outputs on two strips of screw terminals. There is a handy slide switch to switch power on and off, along with an indicator LED. Dimensions are 5\/25&#8243; x 3.25&#8243; x 1&#8243;. The board takes standard 3AG (1.25&#8243; x 0.25&#8243;) glass fuses. For some odd reason, even though the instructions say the board is good to 10A, the main bus fuse I got was rated for 5A. The output fuses are 3.5A. A pretty good deal for <a href=\"http:\/\/www.amazon.com\/gp\/product\/B0006ZKWOI\/ref=as_li_ss_tl?ie=UTF8&#038;tag=robog-20&#038;linkCode=as2&#038;camp=217145&#038;creative=399349&#038;creativeASIN=B0006ZKWOI\">around $20<\/a><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.assoc-amazon.com\/e\/ir?t=&#038;l=as2&#038;o=1&#038;a=B0006ZKWOI&#038;camp=217145&#038;creative=399349\" width=\"1\" height=\"1\" border=\"0\" alt=\"\" style=\"border:none !important; margin:0px !important;\" \/>. Good documentation on the Altronix website, including CAD drawings. Altronix also makes 4 and 16 output versions, as well as <a href=\"http:\/\/en.wikipedia.org\/wiki\/Resettable_fuse\">PTC fused<\/a> versions.<\/p>\n<p><a href=\"http:\/\/www.robogourmet.com\/wp-content\/uploads\/2011\/05\/4805-small.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.robogourmet.com\/wp-content\/uploads\/2011\/05\/4805-small-150x150.jpg\" alt=\"\" title=\"Miller Engineering #4805 Power Distribution Board\" width=\"150\" height=\"150\" class=\"alignnone size-thumbnail wp-image-132\" \/><\/a><br \/>\nIf you have a smaller robot, or just don&#8217;t need all the circuit protection, there&#8217;s the <a href=\"http:\/\/www.microstru.com\/Billboards.html\">Miller Engineering #4805<\/a> (near the bottom of the page). Originally designed for lighted signs for model train sets, this takes in power via a pair of binding posts or a DC barrel jack and gives you 10 outputs on two rows of screw terminals. Dimensions are 4.5&#8243; x 2.25&#8243;. In the original application, this took 4.5VDC and drove 180mA signs. This is a bit low for many robotic applications, but I&#8217;m sure the board can probably handle more current unless they really skimped on trace widths. As I mentioned, there is no circuit protection for this board. Runs about $15.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>One problem I&#8217;m constantly having in building medium-sized prototype robotics systems is power distribution. I&#8217;ve got enough sensors and things that I don&#8217;t want to have one massive wire junction tied into my power supply. Terminal blocks are sort of OK, but I&#8217;ve always felt they were a bit lacking and also didn&#8217;t provide any [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":{"0":"post-129","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-robot-building"},"_links":{"self":[{"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=\/wp\/v2\/posts\/129"}],"collection":[{"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=129"}],"version-history":[{"count":7,"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=\/wp\/v2\/posts\/129\/revisions"}],"predecessor-version":[{"id":135,"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=\/wp\/v2\/posts\/129\/revisions\/135"}],"wp:attachment":[{"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=129"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.robogourmet.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}