{"id":20,"date":"2019-06-04T13:01:19","date_gmt":"2019-06-04T13:01:19","guid":{"rendered":"http:\/\/techmind.dk\/sustainability\/?p=20"},"modified":"2019-06-04T13:01:19","modified_gmt":"2019-06-04T13:01:19","slug":"solcelle-lader-med-mppt","status":"publish","type":"post","link":"http:\/\/techmind.dk\/sustainability\/solceller\/solcelle-lader-med-mppt\/","title":{"rendered":"Solcelle lader med MPPT"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"alignright\"><img loading=\"lazy\" width=\"300\" height=\"201\" src=\"http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/cn3722mppt2-300x201.jpg\" alt=\"\" class=\"wp-image-21\" srcset=\"http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/cn3722mppt2-300x201.jpg 300w, http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/cn3722mppt2-768x515.jpg 768w, http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/cn3722mppt2-1024x687.jpg 1024w, http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/cn3722mppt2.jpg 1293w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><figcaption>cn3722 mppt lader<\/figcaption><\/figure><\/div>\n\n\n\n<p>Mppt solcelle ladere med Chippen CN3722 kan findes overalt p\u00e5 ebay, banggood osv.<\/p>\n\n\n\n<p>Den kan tilpasses \u00f8nsket batterisp\u00e6nding, fra 7.5 Volt til 28 Volt. og en ladestr\u00f8m p\u00e5 op til 5 Ampere.<\/p>\n\n\n\n<p>CN3722 kan bruges som solcellelader til flere typer batterier, som LiIon, LiFePo4, LiPo, GEL osv. <\/p>\n\n\n\n<p>Modstande R6 og R7 \u00e6ndres, en formel findes i databladet fra consonance.<\/p>\n\n\n\n<p>R6 og R7 er  1% SMD (EIA96) modstande.   EI<a href=\"https:\/\/www.hobby-hour.com\/electronics\/smdcalc.php\">A96 modstands kalkulator<\/a> <\/p>\n\n\n\n<p>P\u00e5 R6 st\u00e5r 85D og R7 49D<\/p>\n\n\n\n<p>R6 er p\u00e5 75 K ohm<\/p>\n\n\n\n<p>R7 er p\u00e5 316 K ohm<\/p>\n\n\n\n<p>Formlen for beregning af modstande til \u00f8nsket Batterisp\u00e6nding (CV):<\/p>\n\n\n\n<p> VBAT\uff1d2.416\u00d7(1\uff0bR7\uff0fR6)\uff0bIB\u00d7R7 <\/p>\n\n\n\n<p>IB er 50nA<\/p>\n\n\n\n<p>Dette print med CN3722 er beregnet til 12.61 volt batteri pakke: 3 stk LiIon 18650 i serie,  det der kaldes 3s<\/p>\n\n\n\n<p>Skal mppt solarladeren laves om til 4s LiIon, skal CV \u00e6ndres til 16.6 VOlt<\/p>\n\n\n\n<p>Lavede et regneark til at <a href=\"https:\/\/docs.google.com\/spreadsheets\/d\/19Tbfm5M5Eq1yWwTNvpNgKinKQm3I3Ti5fjRquMMauIs\/edit?usp=sharing\">kalkulere modstandv\u00e6rdier til CN3722<\/a><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" width=\"491\" height=\"136\" src=\"http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/image.png\" alt=\"\" class=\"wp-image-35\" srcset=\"http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/image.png 491w, http:\/\/techmind.dk\/sustainability\/wp-content\/uploads\/2019\/06\/image-300x83.png 300w\" sizes=\"(max-width: 491px) 100vw, 491px\" \/><\/figure>\n\n\n\n<p>Skal mppt cn3722 lader brus til 4s LiIon p\u00e5 14.8 volt, lades til 16.6 Volt, R6 skal v\u00e6re 56Kohm og R7 330 Kohm<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mppt solcelle ladere med Chippen CN3722 kan findes overalt p\u00e5 ebay, banggood osv. Den kan tilpasses \u00f8nsket batterisp\u00e6nding, fra 7.5 Volt til 28 Volt. og en ladestr\u00f8m p\u00e5 op til 5 Ampere. CN3722 kan bruges som solcellelader til flere typer batterier, som LiIon, LiFePo4, LiPo, GEL osv. Modstande R6 og R7 \u00e6ndres, en formel findes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[],"_links":{"self":[{"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/posts\/20"}],"collection":[{"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/comments?post=20"}],"version-history":[{"count":13,"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/posts\/20\/revisions"}],"predecessor-version":[{"id":36,"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/posts\/20\/revisions\/36"}],"wp:attachment":[{"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/media?parent=20"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/categories?post=20"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/techmind.dk\/sustainability\/wp-json\/wp\/v2\/tags?post=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}