{"id":1267,"date":"2015-05-06T20:02:48","date_gmt":"2015-05-06T20:02:48","guid":{"rendered":"https:\/\/dh5ym.hopto.org\/wiki\/?p=1267"},"modified":"2015-05-07T08:24:04","modified_gmt":"2015-05-07T08:24:04","slug":"dl6gl-fan-control","status":"publish","type":"post","link":"http:\/\/dh5ym.hopto.org\/wiki\/?p=1267","title":{"rendered":"DL6GL fan control"},"content":{"rendered":"<p>From time to time temperature dependent control of fans is required. At Georg&#8217;s DL6GL page i found a nice analog solution. He constructed a circuit with TL081 and NTC. I decided to build 4 pieces. (thanks to DG2DWL for etching the boards)<\/p>\n<p>The switch temperature and the hysteresis can be controlled by the 2 adjustable resistors. In the middle you see the NTC, just soldered for a quick test.<\/p>\n<p>Details you can find on Georg&#8217;s page:<\/p>\n<p><a href=\"http:\/\/dl6gl.de\/selbstbau-trx\/der-tx-signalpfad\/temperaturgeregelte-lueftersteuerung\" target=\"_blank\">http:\/\/dl6gl.de\/selbstbau-trx\/der-tx-signalpfad\/temperaturgeregelte-lueftersteuerung<\/a><\/p>\n<div id=\"attachment_1276\" style=\"width: 310px\" class=\"wp-caption alignnone\"><a href=\"http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2015\/05\/wpid-img_20150506_2145121.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1276\" class=\"size-medium wp-image-1276\" src=\"http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2015\/05\/wpid-img_20150506_2145121-300x225.jpg\" alt=\"DL6GL fan control\" width=\"300\" height=\"225\" srcset=\"http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2015\/05\/wpid-img_20150506_2145121-300x225.jpg 300w, http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2015\/05\/wpid-img_20150506_2145121-1024x768.jpg 1024w, http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2015\/05\/wpid-img_20150506_2145121-400x300.jpg 400w, http:\/\/dh5ym.hopto.org\/wiki\/wp-content\/uploads\/2015\/05\/wpid-img_20150506_2145121.jpg 2000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-1276\" class=\"wp-caption-text\">DL6GL fan control &#8211; 1 sided PCB<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>From time to time temperature dependent control of fans is required. At Georg&#8217;s DL6GL page i found a nice analog solution. He constructed a circuit with TL081 and NTC. I decided to build 4 pieces. (thanks to DG2DWL for etching &hellip; <a href=\"http:\/\/dh5ym.hopto.org\/wiki\/?p=1267\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[],"class_list":["post-1267","post","type-post","status-publish","format-standard","hentry","category-electronics"],"_links":{"self":[{"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1267"}],"version-history":[{"count":9,"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1267\/revisions"}],"predecessor-version":[{"id":1279,"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=\/wp\/v2\/posts\/1267\/revisions\/1279"}],"wp:attachment":[{"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1267"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1267"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/dh5ym.hopto.org\/wiki\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}