{"id":19,"date":"2008-08-29T05:38:21","date_gmt":"2008-08-29T12:38:21","guid":{"rendered":"http:\/\/geniusblog.zokul.com\/2008\/08\/29\/dc\/"},"modified":"2013-01-13T03:35:09","modified_gmt":"2013-01-13T10:35:09","slug":"dc","status":"publish","type":"post","link":"http:\/\/www.zokul.com\/zokulblog\/?p=19","title":{"rendered":"DC &#8230;"},"content":{"rendered":"<p>i think we should stay in DC &#8230; not washington, but Direct Current. back in the old days it was better to have your power transmitted and up\/down-converted thru transformers etc. in the last 10-15 years more and more DC\/DC converters were engineered, and the efficiencies went up to (i believe) the low 90% range.<\/p>\n<p>think about your PC: AC comes in, gets immediately converted into DC, and thru switches and coils\/capacitors downconverted to -12\/-5\/+3.3\/+5\/+12 V DC with a max power of 200-350W for a typical desktop PC, and then even your motherboard does a little bit of switching itself and supplies the CPU\/RAM\/PCIe etc with anything from .9V to 3.3V &#8230; everytime you convert you loose. so why not do everything in DC, and switch only once or twice?<\/p>\n<p>once could built a DC system powered by solar panels, that uses e.g. 28V DC &#8230; at let&#8217;s say 100A &#8211; it&#8217;s easy to charge batteries at 26-27V, and it&#8217;s not really lethal if you should touch a wire. i&#8217;m convinced one could even change an A\/C compressor to run on that! besides it&#8217;s easier to go down in Voltage than up, and not to care about a nice clean filtered sine wave &#8211; and there are RV appliances that already run on battery power!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>i think we should stay in DC &#8230; not washington, but Direct Current. back in the old days it was better to have your power transmitted and up\/down-converted thru transformers etc. in the last 10-15 years more and more DC\/DC converters were engineered, and the efficiencies went up to (i believe) the low 90% range. [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[],"class_list":["post-19","post","type-post","status-publish","format-standard","hentry","category-solar-cng-and-electrons"],"_links":{"self":[{"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=\/wp\/v2\/posts\/19","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=19"}],"version-history":[{"count":1,"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=\/wp\/v2\/posts\/19\/revisions"}],"predecessor-version":[{"id":210,"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=\/wp\/v2\/posts\/19\/revisions\/210"}],"wp:attachment":[{"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=19"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=19"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.zokul.com\/zokulblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=19"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}