{"id":387,"date":"2013-07-01T01:49:52","date_gmt":"2013-06-30T22:49:52","guid":{"rendered":"http:\/\/devrearsiv.com\/?p=387"},"modified":"2015-12-24T00:01:11","modified_gmt":"2015-12-23T22:01:11","slug":"4-ledli-voltaj-gostergesi","status":"publish","type":"post","link":"https:\/\/devrearsivi.com\/4-ledli-voltaj-gostergesi\/","title":{"rendered":"4 LEDL\u0130 VOLTAJ G\u00d6STERGES\u0130"},"content":{"rendered":"<p style=\"text-align: center;\" align=\"justify\"><strong><span style=\"color: #000099; font-family: Arial, Helvetica, sans-serif; font-size: medium;\"><a href=\"http:\/\/devrearsiv.com\/wp-content\/uploads\/2013\/07\/v4led.gif\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-388 alignleft\" src=\"http:\/\/devrearsiv.com\/wp-content\/uploads\/2013\/07\/v4led-217x300.gif\" alt=\"v4led\" width=\"217\" height=\"300\" \/><\/a><\/span><\/strong><\/p>\n<p style=\"text-align: center;\" align=\"justify\"><span style=\"color: #000099; font-family: Arial, Helvetica, sans-serif; font-size: medium;\"><span style=\"color: #000000;\"><em>\u00a0S<\/em><\/span><\/span><span style=\"color: #000000;\"><em><span style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\">oldaki basit devre 12V ak\u00fcn\u00fcn voltaj\u0131n\u0131 dolay\u0131s\u0131 ile de doluluk oran\u0131n\u0131 kabaca \u00f6l\u00e7er. Devre 4&#8217;l\u00fc voltaj kar\u015f\u0131la\u015ft\u0131r\u0131c\u0131s\u0131 LM339 entegresiyle ger\u00e7ekle\u015ftirilmi\u015ftir. Devreyi inceledi\u011finizde g\u00f6rebilece\u011finiz gibi, devreye gerilim (voltaj) verildi\u011finde 5,1cVotluk zener uclar\u0131ndaki gerilim, devreye verilen gerilim de\u011fi\u015fse de sabit kalacak de\u011fi\u015fiklik 470 ohm&#8217;luk dire\u00e7 \u00fczerinde g\u00f6r\u00fclecektir. 470 ohm dire\u00e7 \u00fczerindeki gerilim kar\u015f\u0131la\u015ft\u0131r\u0131c\u0131n\u0131n eksi u\u00e7lar\u0131na verilerek, yukar\u0131dan a\u015fa\u011f\u0131 12K, 3 adet 220 ohm, 7,5K ve 2K&#8217;l\u0131k pot ile olu\u015fturulmu\u015f voltaj b\u00f6l\u00fcc\u00fcn\u00fcn 4 ayr\u0131 noktas\u0131ndaki gerilimlerle kar\u015f\u0131la\u015ft\u0131r\u0131l\u0131r. Besleme voltaj\u0131 y\u00fckselirken Led1&#8217;den LED4&#8217;e do\u011fru belivoltaj aral\u0131klar\u0131nda s\u0131rayla yanar, azal\u0131rken de yukar\u0131dan a\u015fa\u011f\u0131 do\u011fru s\u00f6nerler.<\/span><\/em><\/span><\/p>\n<p style=\"text-align: center;\" align=\"justify\"><span style=\"color: #000000;\"><em><span style=\"font-family: Arial, Helvetica, sans-serif; font-size: medium;\">Kalibrasyon (Ayarlar)<\/span><\/em><\/span><\/p>\n<p style=\"text-align: center;\" align=\"justify\"><span style=\"color: #000000;\"><em><span style=\"font-family: Arial, Helvetica, sans-serif; font-size: medium;\">K<\/span><span style=\"font-family: Arial, Helvetica, sans-serif; font-size: small;\">alibrasyon i\u00e7in voltaj\u0131 11V ila 15V aras\u0131nda ayarlanabilen bir do\u011fru ak\u0131m g\u00fc\u00e7 kayna\u011f\u0131na ihtiya\u00e7 vard\u0131r. Kayna\u011f\u0131 12,8 volta ayarlay\u0131n. 2K de\u011ferindeki trimpotu ayarl\u0131yarak ledlerin t\u00fcm\u00fcn\u00fcn yand\u0131\u011f\u0131 noktay\u0131 bulun. Bu voltaj dinlenmekte olan (\u015farj alt\u0131nda olmayan) bir ak\u00fc i\u00e7in tam doluluk voltaj\u0131d\u0131r. (11,8V bo\u015f ak\u00fc) Ayarl\u0131 kayna\u011f\u0131n\u0131z\u0131n voltaj\u0131n\u0131 azaltt\u0131k\u00e7a LED4, LED3, LED2 ne nihayet LED1 s\u0131rayla s\u00f6necektir. Devreyi ak\u00fcn\u00fcze ba\u011flad\u0131\u011f\u0131n\u0131zda yanan LED say\u0131s\u0131na g\u00f6re ak\u00fcn\u00fcn kabaca doluluk oran\u0131 g\u00f6r\u00fclecektir.<\/span><\/em><\/span><\/p>\n<p><span style=\"color: #000000;\"><em>Kabaca olmas\u0131n\u0131n nedeni, Ak\u00fcn\u00fcn doluluk oran\u0131yla voltaj\u0131 aras\u0131ndaki ili\u015fki \u00e7evre \u0131s\u0131s\u0131, ak\u00fc \u0131s\u0131s\u0131, ak\u00fcn\u00fcn cinsi ile az da olsa de\u011fi\u015fir.<\/em><\/span><\/p>\n<p style=\"text-align: center;\" align=\"justify\"><span style=\"color: #000000;\"><em>\u00d6l\u00e7\u00fcm aral\u0131\u011f\u0131n\u0131 de\u011fi\u015fitirmek istiyorsan\u0131z 12K de\u011feindeki direnci 30K&#8217;l\u0131k bir trimpot ile de\u011fi\u015ftirin. Bu trimpotu ayarlayarak de\u011fi\u015ftirin. Her bir LED aras\u0131ndaki voltaj\u0131 de\u011fi\u015ftirmek istiyorsan\u0131z, azaltmak i\u00e7in 220 ohm&#8217;luk diren\u00e7leri 200 ohm ya da daha d\u00fc\u015f\u00fck,artt\u0131mak istiyorsan\u0131z 250 ohm ya da daha y\u00fcksek diren\u00e7lerle de\u011fi\u015ftiriniz.<\/em><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00a0Soldaki basit devre 12V ak\u00fcn\u00fcn voltaj\u0131n\u0131 dolay\u0131s\u0131 ile de doluluk oran\u0131n\u0131 kabaca \u00f6l\u00e7er. Devre 4&#8217;l\u00fc&#8230;<\/p>\n","protected":false},"author":1,"featured_media":388,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,12],"tags":[103,30,105,104],"aioseo_notices":[],"featured_image_urls":{"full":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"thumbnail":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led-150x150.gif",150,150,true],"medium":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led-217x300.gif",217,300,true],"medium_large":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"large":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"1536x1536":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"2048x2048":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"covernews-slider-full":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"covernews-slider-center":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",362,500,false],"covernews-featured":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",453,625,false],"covernews-medium":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",246,340,false],"covernews-medium-square":["https:\/\/devrearsivi.com\/wp-content\/uploads\/2013\/07\/v4led.gif",181,250,false]},"author_info":{"display_name":"Ferhat \u00c7elik","author_link":"https:\/\/devrearsivi.com\/author\/94ferhat\/"},"category_info":"<a href=\"https:\/\/devrearsivi.com\/category\/basit-develer\/\" rel=\"category tag\">Basit Elektronik Devreler<\/a> <a href=\"https:\/\/devrearsivi.com\/category\/elektronik-devreler\/\" rel=\"category tag\">Elektronik Devreler<\/a>","tag_info":"Elektronik Devreler","comment_count":"0","_links":{"self":[{"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/posts\/387"}],"collection":[{"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/comments?post=387"}],"version-history":[{"count":8,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/posts\/387\/revisions"}],"predecessor-version":[{"id":390,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/posts\/387\/revisions\/390"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/media\/388"}],"wp:attachment":[{"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/media?parent=387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/categories?post=387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/devrearsivi.com\/wp-json\/wp\/v2\/tags?post=387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}