{"id":434,"date":"2026-10-03T14:15:03","date_gmt":"2026-10-03T13:15:03","guid":{"rendered":"https:\/\/wpcalc.com\/tr\/ic-555-astable-hesaplayici\/"},"modified":"2026-10-03T14:15:03","modified_gmt":"2026-10-03T13:15:03","slug":"ic-555-astable-hesaplayici","status":"publish","type":"post","link":"https:\/\/wpcalc.com\/tr\/muhendislik\/ic-555-astable-hesaplayici\/","title":{"rendered":"IC 555 Astable Zamanlay\u0131c\u0131 Hesaplama Arac\u0131"},"content":{"rendered":"<section class=\"not-prose calculator-box\" aria-labelledby=\"calculator-title\"><div class=\"flex items-baseline sm:items-center justify-between gap-2 sm:gap-3\"><div class=\"flex flex-col sm:flex-row sm:items-center gap-2\"><span class=\"icon icon-calculator text-primary-700! text-base! dark:text-primary-300!\" aria-hidden=\"true\"><\/span><h2 id=\"calculator-title\" class=\"text-lg font-display font-bold\">555 Zamanlay\u0131c\u0131 Frekans ve G\u00f6rev \u00c7evrimi Tahmin Arac\u0131<\/h2><\/div><div class=\"calcdash-favorite group\">\n  <button type=\"button\" class=\"favorite\" id=\"favorite\" data-favorite-id=\"434\" data-favorite-title=\"IC 555 Astable Zamanlay\u0131c\u0131\" data-favorite-url=\"https:\/\/wpcalc.com\/tr\/muhendislik\/ic-555-astable-hesaplayici\/\" data-favorite-excerpt=\"Astable moddaki 555 zamanlay\u0131c\u0131n\u0131n frekans\u0131n\u0131, periyodunu, y\u00fcksek kalma s\u00fcresini, d\u00fc\u015f\u00fck kalma s\u00fcresini ve g\u00f6rev \u00e7evrimini hesaplay\u0131n. An\u0131nda sonu\u00e7 almak i\u00e7in R1 direnci, R2 direnci ve kondansat\u00f6r de\u011ferlerini girin.\" aria-label=\"Favorilere ekle\" data-favorite-icon=\"icon icon-electrical\">\n    <span class=\"icon icon-shape-star-empty\" aria-hidden=\"true\"><\/span>\n  <\/button>\n  <div class=\"calcdash-favorite__tip\" aria-hidden=\"true\">\n   <span class=\"favorite-tooltip\" id=\"favorite-tooltip\"><\/span>\n  <\/div>\n  <span class=\"sr-only\" role=\"status\" id=\"favorite-status\"><\/span>\n<\/div><\/div><form action=\"https:\/\/wpcalc.com\/tr\/muhendislik\/ic-555-astable-hesaplayici\/\" method=\"POST\" class=\"calculator\" id=\"calculator-434\" data-post=\"434\"><fieldset class=\"fieldset-input\"><legend class=\"sr-only\">Giri\u015f alanlar\u0131<\/legend><div class=\"field has-term\" id=\"input-1\"><label for=\"field-1\">Diren\u00e7 1<\/label><div class=\"term\">R\u2081<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"diren_1\" id=\"field-1\" aria-describedby=\"calc-unit-1 calc-info-1\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0.1\" value=\"1000\"\/><div class=\"unit\" id=\"calc-unit-1\">\u03a9<\/div><small id=\"calc-info-1\">Vcc ile de\u015farj pini aras\u0131na ba\u011flanan diren\u00e7<\/small><\/div><div class=\"field has-term\" id=\"input-2\"><label for=\"field-2\">Diren\u00e7 2<\/label><div class=\"term\">R\u2082<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"diren_2\" id=\"field-2\" aria-describedby=\"calc-unit-2 calc-info-2\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"0.1\" value=\"1000\"\/><div class=\"unit\" id=\"calc-unit-2\">\u03a9<\/div><small id=\"calc-info-2\">De\u015farj ve e\u015fik pini aras\u0131na ba\u011flanan diren\u00e7<\/small><\/div><div class=\"field has-term\" id=\"input-3\"><label for=\"field-3\">Kondansat\u00f6r<\/label><div class=\"term\">C<\/div>  <div class=\"absolute bottom-0 left-16 top-8 w-2 h-0.5 bg-blue-500\"><\/div><input type=\"text\" name=\"kondansatr\" id=\"field-3\" aria-describedby=\"calc-unit-3 calc-info-3\" data-number inputmode=\"decimal\" autocomplete=\"off\" spellcheck=\"false\" min=\"1.0E-6\" value=\"1\"\/><div class=\"unit\" id=\"calc-unit-3\">\u00b5F<\/div><small id=\"calc-info-3\">E\u015fik pininden topra\u011fa ba\u011flanan kondansat\u00f6r<\/small><\/div><\/fieldset><div class=\"buttons\"><button type=\"submit\" data-text=\"Yeniden hesapla\" id=\"calculate-button\" data-post=\"434\">Hesapla<\/button><button type=\"reset\">S\u0131f\u0131rla<\/button><\/div><div class=\"field is-checkbox hidden!\" id=\"field-auto-calc\"><input type=\"checkbox\" id=\"auto-calc\"><label for=\"auto-calc\">Otomatik hesapla<\/label><small>Etkinle\u015ftirilirse, herhangi bir de\u011feri de\u011fi\u015ftirdi\u011finizde sonu\u00e7 otomatik olarak g\u00fcncellenir.<\/small><\/div><div class=\"fieldset-result is-hidden\" aria-labelledby=\"result-title\" aria-live=\"polite\" role=\"region\"> <h3 class=\"result-title bg-gradient-to-r from-primary-50 to-gray-50 dark:from-primary-900 dark:to-gray-800\" id=\"result-title\"><span class=\"icon icon-s-pulse\" aria-hidden=\"true\"><\/span> Sonu\u00e7lar\u0131n\u0131z<\/h3><div class=\"result-box\"><div class=\"field-result\" id=\"output-1\"><span class=\"field-title\"><span>Y\u00fcksek S\u00fcre<\/span><\/span><span class=\"field-value\" id=\"result-1\" data-unit=\"ms\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-2\"><span class=\"field-title\"><span>D\u00fc\u015f\u00fck S\u00fcre<\/span><\/span><span class=\"field-value\" id=\"result-2\" data-unit=\"ms\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-3\"><span class=\"field-title\"><span>Toplam Periyot<\/span><\/span><span class=\"field-value\" id=\"result-3\" data-unit=\"ms\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-4\"><span class=\"field-title\"><span>Frekans<\/span><\/span><span class=\"field-value\" id=\"result-4\" data-unit=\"Hz\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><div class=\"field-result\" id=\"output-5\"><span class=\"field-title\"><span>G\u00f6rev \u00c7evrimi<\/span><\/span><span class=\"field-value\" id=\"result-5\" data-unit=\"%\"><\/span><button type=\"button\" class=\"copy-result\" data-tooltip=\"Sonucu kopyala\" aria-label=\"Sonucu kopyala\"><span class=\"copy-icon icon icon-document-copy\" aria-hidden=\"true\"><\/span><\/button><\/div><\/div><div class=\"result-actions\"><button type=\"button\" class=\"copy-link\"><svg viewBox=\"0 0 20 20\" fill=\"currentColor\" aria-hidden=\"true\"><path d=\"M12.232 4.232a2.5 2.5 0 0 1 3.536 3.536l-1.225 1.224a.75.75 0 0 0 1.061 1.06l1.224-1.224a4 4 0 0 0-5.656-5.656l-3 3a4 4 0 0 0 .225 5.865.75.75 0 0 0 .977-1.138 2.5 2.5 0 0 1-.142-3.667l3-3Z\"\/><path d=\"M11.603 7.963a.75.75 0 0 0-.977 1.138 2.5 2.5 0 0 1 .142 3.667l-3 3a2.5 2.5 0 0 1-3.536-3.536l1.225-1.224a.75.75 0 0 0-1.061-1.06l-1.224 1.224a4 4 0 1 0 5.656 5.656l3-3a4 4 0 0 0-.225-5.865Z\"\/><\/svg><span class=\"copy-link__text\">Bu hesaplaman\u0131n ba\u011flant\u0131s\u0131n\u0131 kopyala<\/span><\/button><span class=\"sr-only\" role=\"status\" id=\"copy-link-status\"><\/span><\/div><\/div><a href=\"#respond\" class=\"hidden transition-opacity duration-300 opacity-0 w-50 text-sm justify-center items-center gap-2 px-4 py-2 rounded bg-gray-200 text-gray-700 hover:bg-gray-300\" id=\"leave-comment\"><span class=\"icon icon-comments\" aria-hidden=\"true\"><\/span>Yorum b\u0131rak<\/a><\/form><\/section><section id=\"calc-reactions\" class=\"not-prose hidden my-12 bg-gradient-to-r from-primary-50 to-gray-50 border border-indigo-100 rounded-xl px-6 py-4 shadow-sm\" data-post=\"434\" aria-live=\"polite\" aria-labelledby=\"calc-reactions-title\"><p id=\"calc-reactions-title\" class=\"text-sm text-gray-500 text-center mb-2\">Bu sonu\u00e7 hakk\u0131nda ne d\u00fc\u015f\u00fcn\u00fcyorsunuz?<\/p><div role=\"group\" aria-labelledby=\"calc-reactions-title\" class=\"grid grid-cols-3 sm:flex sm:flex-row sm:justify-around gap-4 sm:items-center sm:flex-wrap\"><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"like\"><span class=\"reaction-count\" data-reaction-count=\"like\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude00 <\/span><span class=\"reaction-description font-medium\">Be\u011fendim <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"helpful\"><span class=\"reaction-count\" data-reaction-count=\"helpful\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\udca1 <\/span><span class=\"reaction-description font-medium\">Faydal\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"confused\"><span class=\"reaction-count\" data-reaction-count=\"confused\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude15 <\/span><span class=\"reaction-description font-medium\">Kafam kar\u0131\u015ft\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"disappointed\"><span class=\"reaction-count\" data-reaction-count=\"disappointed\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\ud83d\ude1e <\/span><span class=\"reaction-description font-medium\">Hayal k\u0131r\u0131kl\u0131\u011f\u0131 <\/span><\/button><button type=\"button\" aria-pressed=\"false\" class=\"reaction-btn flex flex-col items-center gap-1 text-sm text-gray-700 hover:text-primary-600 cursor-pointer transition-transform hover:scale-105\" data-reaction=\"inaccurate\"><span class=\"reaction-count\" data-reaction-count=\"inaccurate\">0<\/span><span class=\"reaction text-3xl\" aria-hidden=\"true\">\u274c <\/span><span class=\"reaction-description font-medium\">Hatal\u0131 <\/span><\/button><\/div><div id=\"reaction-message\" class=\"hidden mt-8 rounded-md border border-primary-100 bg-white\/50 backdrop-blur-sm px-4 py-2 text-sm text-center shadow-sm\"><\/div><\/section><div class=\"calcdash-ad not-prose calcdash-ad--calc_result calcdash-ad--in-article\"><ins class=\"adsbygoogle\" style=\"display:block\" data-ad-client=\"ca-pub-1721569815777345\" data-ad-slot=\"6317458308\" data-ad-layout=\"in-article\" data-ad-format=\"fluid\"><\/ins><script>(adsbygoogle = window.adsbygoogle || []).push({});<\/script><\/div>\n<style id=\"wpcoderpro-inline-1\">.formula-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section class=\"formula-box\" aria-labelledby=\"formula-title\">\r\n\t<div id=\"formula-title\" class=\"not-prose font-display mb-4\"><span class=\"icon icon-formula\" aria-hidden=\"true\"><\/span><h2>IC 555 Astable Zamanlay\u0131c\u0131 Form\u00fcl\u00fc<\/h2><\/div>\r\n\t<figure class=\"not-prose formula\">\r\n\t\t<figcaption class=\"formula-title\">Form\u00fcl<\/figcaption>\r\n\t\t<div class=\"text-base text-gray-800\" id=\"formula\">\n\\[ T_{high} = 0.693\\,(R_1 + R_2)\\,C \\\\ T_{low} = 0.693\\,R_2\\,C \\\\ T = T_{high} + T_{low} = 0.693\\,(R_1 + 2R_2)\\,C \\\\ f = \\frac{1}{T} = \\frac{1.44}{(R_1 + 2R_2)\\,C} \\\\ \\text{G\u00f6rev \u00c7evrimi} = \\frac{T_{high}}{T} \\cdot 100 = \\frac{R_1 + R_2}{R_1 + 2R_2} \\cdot 100 \\]\n<\/div>\r\n\t<\/figure>\r\n\t<\/p>\n<p><strong>Burada:<\/strong><\/p>\n<ul>\n<li>\\(T_{high}\\) \u2014 \u00e7\u0131k\u0131\u015f\u0131n y\u00fcksek kald\u0131\u011f\u0131 s\u00fcre (s)<\/li>\n<li>\\(T_{low}\\) \u2014 \u00e7\u0131k\u0131\u015f\u0131n d\u00fc\u015f\u00fck kald\u0131\u011f\u0131 s\u00fcre (s)<\/li>\n<li>\\(T\\) \u2014 bir sal\u0131n\u0131m \u00e7evriminin toplam periyodu (s)<\/li>\n<li>\\(f\\) \u2014 \u00e7\u0131k\u0131\u015f frekans\u0131 (Hz)<\/li>\n<li>\\(R_1\\) \u2014 Vcc ile de\u015farj pini aras\u0131ndaki diren\u00e7 (\u03a9)<\/li>\n<li>\\(R_2\\) \u2014 de\u015farj pini ile e\u015fik pini aras\u0131ndaki diren\u00e7 (\u03a9)<\/li>\n<li>\\(C\\) \u2014 e\u015fik pini ile toprak aras\u0131ndaki zamanlama kondansat\u00f6r\u00fc (F)<\/li>\n<\/ul>\n<p>Bu denklemler, astable (karars\u0131z) moddaki 555 zamanlay\u0131c\u0131n\u0131n serbest \u00e7al\u0131\u015fan sal\u0131n\u0131m\u0131n\u0131 tan\u0131mlar: kondansat\u00f6r \\(R_1\\) ve \\(R_2\\) \u00fczerinden \u015farj olur, ard\u0131ndan yaln\u0131zca \\(R_2\\) \u00fczerinden de\u015farj olur; bu y\u00fczden iki yar\u0131m \u00e7evrim farkl\u0131 uzunluktad\u0131r.<\/p>\n<p>\r\n<\/section>\n<style id=\"wpcoderpro-inline-2\">.calculation-box {\r\n\tborder-bottom: none !important;\r\n}<\/style><section id=\"calculation\" class=\"calculation-box\" aria-labelledby=\"calculation-title\">\r\n\t<div id=\"calculation-title\" class=\"not-prose font-display\"><span class=\"icon icon-unordered-list\" aria-hidden=\"true\"><\/span><h2>IC 555 Astable Zamanlay\u0131c\u0131 \u2013 Hesaplama \u00d6rne\u011fi<\/h2><\/div>\r\n\r\n<\/p>\n<p><strong>\u00d6rnek:<\/strong> \\(R_1 = 1000\\ \\Omega\\), \\(R_2 = 1000\\ \\Omega\\) ve \\(C = 1\\ \\mu\\text{F}\\) de\u011ferlerine sahip bir 555 zamanlay\u0131c\u0131 astable devresi (hesaplama arac\u0131n\u0131n varsay\u0131lan de\u011ferleri).<\/p>\n<p>\\[ T_{high} = 0.693 \\cdot (1000 + 1000) \\cdot 1 \\times 10^{-6} = 0.001386\\ \\text{s} = 1.386\\ \\text{ms} \\]<\/p>\n<p>\\[ T_{low} = 0.693 \\cdot 1000 \\cdot 1 \\times 10^{-6} = 0.000693\\ \\text{s} = 0.693\\ \\text{ms} \\]<\/p>\n<p>\\[ T = 1.386 + 0.693 = 2.079\\ \\text{ms} \\]<\/p>\n<p>\\[ f = \\frac{1}{0.002079} \\approx 481.0\\ \\text{Hz} \\]<\/p>\n<p>\\[ \\text{G\u00f6rev \u00c7evrimi} = \\frac{1.386}{2.079} \\cdot 100 = 66.67\\% \\]<\/p>\n<p><strong>Sonu\u00e7:<\/strong> Y\u00fcksek Kalma S\u00fcresi = 1,386 ms, D\u00fc\u015f\u00fck Kalma S\u00fcresi = 0,693 ms, Toplam Periyot = 2,079 ms, Frekans \u2248 481,0 Hz, G\u00f6rev \u00c7evrimi = %66,67.<\/p>\n<p>\n\r\n<\/section>\n<h2>Hesaplama Arac\u0131 Nas\u0131l Kullan\u0131l\u0131r?<\/h2>\n<ol>\n<li><strong>Diren\u00e7 1<\/strong> (\\(R_1\\)) de\u011ferini ohm cinsinden girin \u2014 bu, Vcc ile de\u015farj pini (pin 7) aras\u0131na ba\u011flanan diren\u00e7tir.<\/li>\n<li><strong>Diren\u00e7 2<\/strong> (\\(R_2\\)) de\u011ferini ohm cinsinden girin \u2014 de\u015farj pini ile e\u015fik pini (pin 6 ve 2) aras\u0131ndaki diren\u00e7.<\/li>\n<li><strong>Kondansat\u00f6r<\/strong> de\u011ferini (\\(C\\)) mikrofarad cinsinden girin \u2014 e\u015fik pininden topra\u011fa ba\u011flanan zamanlama kondansat\u00f6r\u00fc.<\/li>\n<li>Sonu\u00e7lar\u0131 okuyun: <strong>Y\u00fcksek Kalma S\u00fcresi<\/strong>, <strong>D\u00fc\u015f\u00fck Kalma S\u00fcresi<\/strong>, <strong>Toplam Periyot<\/strong> (hepsi ms cinsinden), <strong>Frekans<\/strong> (Hz cinsinden) ve <strong>G\u00f6rev \u00c7evrimi<\/strong> (% cinsinden).<\/li>\n<\/ol>\n<h2>Astable Moddaki 555 Zamanlay\u0131c\u0131 Nedir?<\/h2>\n<p>555 zamanlay\u0131c\u0131 entegresi, \u00fcretilmi\u015f en pop\u00fcler t\u00fcmle\u015fik devrelerden biridir ve astable (serbest \u00e7al\u0131\u015fan) modu, say\u0131s\u0131z sal\u0131n\u00e7 (osilat\u00f6r), LED fla\u015f\u00f6r, ses \u00fcreteci ve saat devresinde yer almas\u0131n\u0131n nedenidir. Bu modda 555'in kararl\u0131 bir \u00e7\u0131k\u0131\u015f durumu yoktur: g\u00fc\u00e7 uyguland\u0131\u011f\u0131 s\u00fcrece, herhangi bir harici tetikleme olmadan kendi kendine s\u00fcrekli olarak y\u00fcksek ve d\u00fc\u015f\u00fck durumlar\u0131 aras\u0131nda ge\u00e7i\u015f yapar.<\/p>\n<p>Sal\u0131n\u0131m, zamanlama kondansat\u00f6r\u00fcn\u00fcn tekrarlanan \u015farj\u2013de\u015farj \u00e7evrimi \u00fczerinden \u00e7al\u0131\u015f\u0131r. Kondansat\u00f6r \\(R_1\\) ve \\(R_2\\) \u00fczerinden Vcc y\u00f6n\u00fcnde \u015farj olurken, gerilim \\(\\tfrac{1}{3}V_{cc}\\) ile \\(\\tfrac{2}{3}V_{cc}\\) aras\u0131nda y\u00fckselirken \u00e7\u0131k\u0131\u015f y\u00fcksek olur. Gerilim \\(\\tfrac{2}{3}V_{cc}\\) de\u011ferine ula\u015ft\u0131\u011f\u0131nda i\u00e7sel de\u015farj transist\u00f6r\u00fc iletime girer ve kondansat\u00f6r yaln\u0131zca \\(R_2\\) \u00fczerinden bo\u015fal\u0131r; bu s\u00fcre boyunca \u00e7\u0131k\u0131\u015f d\u00fc\u015f\u00fck kal\u0131r. Gerilim \\(\\tfrac{1}{3}V_{cc}\\) de\u011ferine geri d\u00fc\u015ft\u00fc\u011f\u00fcnde \u00e7evrim yeniden ba\u015flar. De\u015farj yolu yaln\u0131zca \\(R_2\\) \u00fczerinden, \u015farj yolu ise \\(R_1 + R_2\\) \u00fczerinden akt\u0131\u011f\u0131 i\u00e7in y\u00fcksek ve d\u00fc\u015f\u00fck s\u00fcreler birbirinden farkl\u0131d\u0131r \u2014 g\u00f6rev \u00e7evriminin tam olarak ifade etti\u011fi \u015fey budur.<\/p>\n<p>G\u00f6rev \u00e7evrimi, toplam periyodun \u00e7\u0131k\u0131\u015f\u0131n y\u00fcksek oldu\u011fu b\u00f6l\u00fcm\u00fcn y\u00fczdesidir. Temel iki diren\u00e7li devrede bu de\u011fer daima %50'den b\u00fcy\u00fckt\u00fcr, \u00e7\u00fcnk\u00fc \u015farj yolu her zaman \\(R_2\\)'ye ek olarak \\(R_1\\)'i de i\u00e7erir. \\(R_1 \\gg R_2\\) ise g\u00f6rev \u00e7evrimi %100'e yakla\u015f\u0131r; \\(R_1 \\ll R_2\\) ise %50'ye yakla\u015f\u0131r. Tam %50 veya daha d\u00fc\u015f\u00fck bir g\u00f6rev \u00e7evrimine ula\u015fmak i\u00e7in, \\(R_2\\) \u00fczerine paralel bir diyot (\u015farj s\u0131ras\u0131nda \\(R_2\\)'yi baypas eden) gibi devre de\u011fi\u015fiklikleri gerekir.<\/p>\n<p>\u00c7\u0131k\u0131\u015f frekans\u0131 diren\u00e7 ve kapasitans de\u011ferlerinin \u00e7arp\u0131m\u0131na ba\u011fl\u0131d\u0131r; dolay\u0131s\u0131yla ayn\u0131 frekans bir\u00e7ok farkl\u0131 eleman kombinasyonuyla elde edilebilir. Uygulamada kondansat\u00f6r\u00fc uygun bir aral\u0131kta tutun (kabaca 1 nF ile 100 \u00b5F aras\u0131) ve diren\u00e7 de\u011ferleri ince ayar\u0131 daha kolay oldu\u011fundan istenen frekansa ula\u015fmak i\u00e7in diren\u00e7leri ayarlay\u0131n.<\/p>\n<h2>Varsay\u0131mlar, S\u0131n\u0131rlamalar ve Pratik \u0130pu\u00e7lar\u0131<\/h2>\n<ul>\n<li>Form\u00fcller, kondansat\u00f6r\u00fcn tam olarak \\(\\tfrac{1}{3}V_{cc}\\) ile \\(\\tfrac{2}{3}V_{cc}\\) aras\u0131nda sal\u0131nd\u0131\u011f\u0131n\u0131 varsayan ideal \\(0.693 = \\ln 2\\) \u00e7arpan\u0131n\u0131 kullan\u0131r. Ger\u00e7ek 555 \u00e7ipleri toleranslara sahiptir; bu y\u00fczden \u00f6l\u00e7\u00fclen frekanslar birka\u00e7 y\u00fczde sapabilir \u2014 hassas zamanlama gerekiyorsa bir trimpot diren\u00e7 kullan\u0131n.<\/li>\n<li>\\(R_1\\) \u00e7ok k\u00fc\u00e7\u00fck olmamal\u0131d\u0131r (kabaca 1 k\u03a9'nin \u00fczerinde tutun), aksi h\u00e2lde de\u015farj transist\u00f6r\u00fc iletime girdi\u011finde a\u015f\u0131r\u0131 ak\u0131m \u00e7ekebilir. 1 k\u03a9 ile birka\u00e7 M\u03a9 aras\u0131 de\u011ferler tipiktir.<\/li>\n<li>Bu standart devrenin g\u00f6rev \u00e7evrimi %50'nin alt\u0131na inemez. Daha k\u0131sa y\u00fcksek s\u00fcreler i\u00e7in, kondansat\u00f6r esas olarak \\(R_1\\) \u00fczerinden \u015farj olsun diye \\(R_2\\) ile paralel bir diyot ekleyin.<\/li>\n<li>Standart bipolar 555 yakla\u015f\u0131k 200 mA ak\u0131m verebilir ve \u00e7ekebilir; bu, bir LED'i do\u011frudan s\u00fcrmek i\u00e7in yeterlidir. CMOS s\u00fcr\u00fcmleri (TLC555, 7555) daha az g\u00fc\u00e7 t\u00fcketir ancak \u00e7\u0131k\u0131\u015f s\u00fcrme kapasiteleri daha zay\u0131ft\u0131r.<\/li>\n<li>\u00c7ok y\u00fcksek frekanslarda (birka\u00e7 y\u00fcz kHz \u00fczeri), yay\u0131l\u0131m gecikmeleri ve parazit kapasitans ideal form\u00fclleri giderek daha hatal\u0131 h\u00e2le getirir. Y\u00fcksek frekanslar i\u00e7in bunun yerine \u00f6zel bir sal\u0131n\u00e7 devresi d\u00fc\u015f\u00fcn\u00fcn.<\/li>\n<li>Prototip olu\u015fturma s\u0131ras\u0131nda farkl\u0131 bir toplam dirence ihtiya\u00e7 duyarsan\u0131z, <a href=\"https:\/\/wpcalc.com\/tr\/muhendislik\/paralel-direnc-hesaplama\/\">Paralel Diren\u00e7 Hesaplama Arac\u0131<\/a> standart de\u011ferleri birle\u015ftirmenize yard\u0131mc\u0131 olur; devreyi bir PCB \u00fczerine kurarken ise <a href=\"https:\/\/wpcalc.com\/tr\/muhendislik\/awg-hesaplama\/\">Kablo Kal\u0131nl\u0131\u011f\u0131 Hesaplama Arac\u0131<\/a> \u00e7ekilen ak\u0131m i\u00e7in uygun iz veya kablo kesiti se\u00e7menize yard\u0131mc\u0131 olur.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Astable moddaki 555 zamanlay\u0131c\u0131n\u0131n frekans\u0131n\u0131, periyodunu, y\u00fcksek kalma s\u00fcresini, d\u00fc\u015f\u00fck kalma s\u00fcresini ve g\u00f6rev \u00e7evrimini hesaplay\u0131n. An\u0131nda sonu\u00e7 almak i\u00e7in R1 direnci, R2 direnci ve kondansat\u00f6r de\u011ferlerini girin.<\/p>\n","protected":false},"author":3168,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6],"tags":[35],"class_list":["post-434","post","type-post","status-publish","format-standard","hentry","category-muhendislik","tag-elektrik"],"acf":[],"_links":{"self":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/users\/3168"}],"replies":[{"embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/comments?post=434"}],"version-history":[{"count":3,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/434\/revisions"}],"predecessor-version":[{"id":3544,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/posts\/434\/revisions\/3544"}],"wp:attachment":[{"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/media?parent=434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/categories?post=434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpcalc.com\/tr\/wp-json\/wp\/v2\/tags?post=434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}