{"id":1750,"date":"2017-07-18T23:14:18","date_gmt":"2017-07-18T23:14:18","guid":{"rendered":"http:\/\/www.blog.exrockets.com\/blog\/?p=1750"},"modified":"2018-03-15T04:39:19","modified_gmt":"2018-03-15T04:39:19","slug":"uv-apogee-detector-v3-3-7v-lipo-supply","status":"publish","type":"post","link":"http:\/\/www.blog.exrockets.com\/blog\/uv-apogee-detector-v3-3-7v-lipo-supply\/","title":{"rendered":"UV APOGEE DETECTOR v3 &#8211; 3.7V LiPo SUPPLY"},"content":{"rendered":"<p><a href=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1752\" src=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_3.jpg\" alt=\"\" width=\"1631\" height=\"1072\" srcset=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_3.jpg 1631w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_3-300x197.jpg 300w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_3-768x505.jpg 768w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_3-1024x673.jpg 1024w\" sizes=\"auto, (max-width: 1631px) 100vw, 1631px\" \/><\/a><\/p>\n<p>This is a slightly modified version of the <a href=\"http:\/\/www.blog.exrockets.com\/blog\/uv-apogee-detector-2\/\">UV APOGEE DETECTOR v2<\/a> and the purpose was to make a very small UV apogee sensor that will work with 3.7v LiPo batteries and will fit even in a tiny rocket.<\/p>\n<p><a href=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_SCH.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1753\" src=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_SCH.png\" alt=\"\" width=\"1433\" height=\"601\" srcset=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_SCH.png 1433w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_SCH-300x126.png 300w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_SCH-768x322.png 768w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_SCH-1024x429.png 1024w\" sizes=\"auto, (max-width: 1433px) 100vw, 1433px\" \/><\/a><\/p>\n<p>The components were chosen so that the circuit works at low voltages \u2013 as low as 3v. The MOSFET can handle around 10A which is more than enough and I also kept the Ignition Integrity Circuit that will indicate if the resistive fuse for the ejection charge is working properly.<\/p>\n<p><a href=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1754\" src=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_1.jpg\" alt=\"\" width=\"291\" height=\"380\" srcset=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_1.jpg 923w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_1-229x300.jpg 229w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_1-768x1004.jpg 768w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_1-783x1024.jpg 783w\" sizes=\"auto, (max-width: 291px) 100vw, 291px\" \/>\u00a0<\/a><a href=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1755\" src=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_2.jpg\" alt=\"\" width=\"291\" height=\"380\" srcset=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_2.jpg 923w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_2-229x300.jpg 229w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_2-768x1004.jpg 768w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_2-783x1024.jpg 783w\" sizes=\"auto, (max-width: 291px) 100vw, 291px\" \/><\/a><\/p>\n<p>The overall dimensions of the PCB are 7.5x41x1mm and in combination with a small LiPo battery it can fit even in the smallest rockets adding very little weight while providing a reliable apogee detection method and consequently a parachute charge ignition.<\/p>\n<p><a href=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_4.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1757\" src=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_4.jpg\" alt=\"\" width=\"1800\" height=\"723\" srcset=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_4.jpg 1800w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_4-300x121.jpg 300w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_4-768x308.jpg 768w, http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3_4-1024x411.jpg 1024w\" sizes=\"auto, (max-width: 1800px) 100vw, 1800px\" \/><\/a><\/p>\n<p>And short video demonstration of how the device works.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/nfnwvgQ-hCU\" width=\"640\" height=\"360\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>PCB manufacturing files in GERBER format:<br \/>\n<a href=\"http:\/\/www.blog.exrockets.com\/blog\/wp-content\/uploads\/2017\/07\/UVAS3-CADCAM.zip\">UVAS3 &#8211; CADCAM.ZIP<\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is a slightly modified version of the UV APOGEE DETECTOR v2 and the purpose was to make a very small UV apogee sensor that will work with 3.7v LiPo batteries and will fit even in a tiny rocket. The components were chosen so that the circuit works at low voltages \u2013 as low as [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"gallery","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-1750","post","type-post","status-publish","format-gallery","hentry","category-electronics","post_format-post-format-gallery"],"_links":{"self":[{"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/posts\/1750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/comments?post=1750"}],"version-history":[{"count":6,"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/posts\/1750\/revisions"}],"predecessor-version":[{"id":1764,"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/posts\/1750\/revisions\/1764"}],"wp:attachment":[{"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/media?parent=1750"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/categories?post=1750"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.blog.exrockets.com\/blog\/wp-json\/wp\/v2\/tags?post=1750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}