{"id":29,"date":"2024-04-04T03:04:46","date_gmt":"2024-04-04T00:04:46","guid":{"rendered":"https:\/\/sisu.ut.ee\/elektroonika\/44-schmitti-trigeriga-multivibraator\/"},"modified":"2024-04-04T03:05:53","modified_gmt":"2024-04-04T00:05:53","slug":"44-schmitti-trigeriga-multivibraator","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/elektroonika\/44-schmitti-trigeriga-multivibraator\/","title":{"rendered":"4.4. Schmitti trigeriga multivibraator"},"content":{"rendered":"<p><span data-mce-mark=\"1\">Selles loengus valmib l\u00f5puks ometi esimene vilkuv elektroonikaseade selle kursuse jooksul. Selleks \u00fchendame Schmitti trigeri v\u00e4ljundi ja sisendi vahele RC-ahela niiviisi, et takisti on \u00fchendatud v\u00e4ljundiga ning kondensaator sisendiga. \u00dchendust elektriskeemis, kus mingi osa v\u00e4ljund m\u00f5jutab tema enda sisendit, nimetatakse <\/span><span data-mce-mark=\"1\">tagasiside<\/span><span data-mce-mark=\"1\">.<\/span><\/p>\n<p><span data-mce-mark=\"1\">Me juba teame, et l\u00e4bi takisti toimub kondensaatori laadumine ja t\u00fchjenemine aeglaselt. Kui inverteeritud Schmitti trigeri sisendpinge muutub madalamaks kui V<\/span><span data-mce-mark=\"1\">N<\/span><span data-mce-mark=\"1\">, siis tema v\u00e4ljund muutub k\u00f5rgeks. Kondensaator hakkab laaduma l\u00e4bi takisti ning pinge kondensaatoril \u00fcletab Schmitti trigeri V<\/span><span data-mce-mark=\"1\">P<\/span><span data-mce-mark=\"1\"> natuke hiljem. Kuna kondensaator on \u00fchendatud Schmitti trigeri sisendiga, siis triger l\u00fclitub \u00fcmber ning kondensaator hakkab t\u00fchjenema l\u00e4bi takisti. Pinge kondensaatoril muutub madalamaks kui V<\/span><span data-mce-mark=\"1\">N<\/span><span data-mce-mark=\"1\"> j\u00e4lle natuke hiljem. Niisugune edasi-tagasi l\u00fclitumine kestab seni, kuni toide v\u00e4lja l\u00fclitatakse. Tagasisidet, mis sunnib elektriskeemi osa v\u00f5nkuma maksimaalse ja minimaalse v\u00f5imaliku oleku vahel, nimetatakse <\/span><span data-mce-mark=\"1\">positiivne tagasiside<\/span><span data-mce-mark=\"1\">.<\/span><\/p>\n<p><span data-mce-mark=\"1\"><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div><\/span><\/p>\n<p style=\"text-align: center\"><a href=\"https:\/\/youtu.be\/eqnP_O4ZD38\" target=\"_blank\" rel=\"noopener\">https:\/\/youtu.be\/eqnP_O4ZD38<\/a><\/p>\n<p>Praktilise t\u00f6\u00f6 jaoks vajad j\u00e4rgmisi vahendeid:<\/p>\n<ul>\n<li>multimeeter<\/li>\n<li>makettplaat<\/li>\n<li>mikroskeem CD40106<\/li>\n<li>takistid<\/li>\n<li>kondensaatorid<\/li>\n<li>valgusdioodid<\/li>\n<li>6V vooluallikas<\/li>\n<li>l\u00fcliti<\/li>\n<li>elektrol\u00fc\u00fctkondensaatorid<\/li>\n<\/ul>\n<h5><img loading=\"lazy\" decoding=\"async\" width=\"40\" height=\"40\" class=\"alignnone wp-image-77\" style=\"margin-left: 10px;margin-right: 10px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/189\/motle.png\" title=\"motle.png\" alt=\"motle.png\">\u00a0M\u00f5tle kaasa!<\/h5>\n<ol>\n<li>Kui 470\u00b5F kondensaatori asemele panna 1000\u00b5F kondensaator, kas siis vilkumise sagedus muutub kiiremaks v\u00f5i aeglasemaks?<\/li>\n<li>Kui 4,7k\u2126 takisti asemele panna 1k\u2126 takisti, kas siis vilkumise sagedus muutub kiiremaks v\u00f5i aeglasemaks?<\/li>\n<\/ol>\n<p><\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69d5a4a981fd4-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69d5a4a981fd4-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69d5a4a981fd4-collapse\">Vastus<\/button>\n        <\/h2>\n        <div id=\"accordion-69d5a4a981fd4-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69d5a4a981fd4-heading\">\n            <div class=\"accordion-body\">\n<p><span id=\"docs-internal-guid-5797e69e-2188-2f5d-157f-6baa507505f9\" data-mce-mark=\"1\"><span data-mce-mark=\"1\">Vilkumise sagedus s\u00f5ltub RC-ahela ajategurist. Kui kondensaator on suurem, siis on ajategur suurem ja vilgub aeglasemalt. Kui takisti on v\u00e4iksem, siis on ajategur v\u00e4iksem ja vilgub sagedamini.<\/span><\/span><\/p>\n<p><span data-mce-mark=\"1\"><span data-mce-mark=\"1\"><\/span><\/span><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Selles loengus valmib l\u00f5puks ometi esimene vilkuv elektroonikaseade selle kursuse jooksul. Selleks \u00fchendame Schmitti trigeri v\u00e4ljundi ja sisendi vahele RC-ahela niiviisi, et takisti on \u00fchendatud v\u00e4ljundiga ning kondensaator sisendiga. \u00dchendust elektriskeemis, kus mingi osa v\u00e4ljund m\u00f5jutab tema enda sisendit, nimetatakse &#8230;<\/p>\n","protected":false},"author":93,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-29","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/users\/93"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/29\/revisions"}],"predecessor-version":[{"id":229,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/29\/revisions\/229"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/media?parent=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}