{"id":78416,"date":"2024-03-17T14:00:54","date_gmt":"2024-03-17T13:00:54","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/lm317-co-to-jest-dane-techniczne-schemat-cena-i-opinie\/"},"modified":"2026-04-08T11:00:18","modified_gmt":"2026-04-08T09:00:18","slug":"lm317-co-je-to-technicke-udaje-schema-cena-a-nazory","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/lm317-co-je-to-technicke-udaje-schema-cena-a-nazory\/","title":{"rendered":"LM317 – Co je to? Technick\u00e9 \u00fadaje, sch\u00e9ma, cena a n\u00e1zory"},"content":{"rendered":"\u010cas \u010dten\u00ed:<\/span> 3<\/span> min.<\/span><\/span>\t\t
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LM317 je zkr\u00e1cen\u00fd n\u00e1zev line\u00e1rn\u00edho stabiliz\u00e1toru ur\u010den\u00e9ho pro pr\u016fchoz\u00ed mont\u00e1\u017e THT. LM317 se pou\u017e\u00edv\u00e1 k nap\u00e1jen\u00ed obvod\u016f s nap\u011bt\u00edm od 1,2 V do 37 V.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Regul\u00e1tor LM317 - rozsah nap\u00e1jec\u00edho nap\u011bt\u00ed 1,2 V a\u017e 37 V<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Line\u00e1rn\u00ed stabiliz\u00e1tor LM317<\/a> je elektronick\u00e1 sou\u010d\u00e1stka se t\u0159emi v\u00fdvody v podob\u011b dr\u00e1tov\u00fdch patek. Umo\u017e\u0148uje v\u00fdstupn\u00ed nap\u011bt\u00ed v rozsahu od 1,2 V do 37 V. LM317 se pou\u017e\u00edv\u00e1 v r\u016fzn\u00fdch elektronick\u00fdch obvodech, kter\u00e9 vy\u017eaduj\u00ed stabiln\u00ed a regulovan\u00e9 nap\u011bt\u00ed.<\/p>\n

Line\u00e1rn\u00ed stabiliz\u00e1tor<\/a> je uzav\u0159en v pouzd\u0159e TO-220, kter\u00e9 zaru\u010duje \u00fa\u010dinn\u00fd odvod tepla a umo\u017e\u0148uje bezpe\u010dn\u00fd provoz sou\u010d\u00e1stky p\u0159i maxim\u00e1ln\u00edm zat\u00ed\u017een\u00ed. Maxim\u00e1ln\u00ed v\u00fdstupn\u00ed proud stabiliz\u00e1toru LM317 je 1,5 A. D\u00edky univerz\u00e1ln\u00ed pou\u017eitelnosti, jednoduch\u00e9 mont\u00e1\u017ei a \u0161irok\u00e9mu rozsahu nastaven\u00ed v\u00fdstupn\u00edho nap\u011bt\u00ed je stabiliz\u00e1tor hojn\u011b vyu\u017e\u00edv\u00e1n profesion\u00e1ly i amat\u00e9rsk\u00fdmi u\u017eivateli.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"Stabilisator\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t
Stabiliz\u00e1tor LM317T 1,2-37V - THT TO220 - 5ks.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tPOD\u00cdVEJTE SE NA<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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P\u0159\u00edklady pou\u017eit\u00ed stabiliz\u00e1toru nap\u011bt\u00ed LM317 v krytu TO-220<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Line\u00e1rn\u00ed stabiliz\u00e1tor LM317<\/a> lze pou\u017e\u00edt k sestaven\u00ed jednoduch\u00e9ho a spolehliv\u00e9ho regulovan\u00e9ho nap\u00e1jec\u00edho zdroje na prototypov\u00e9 desce. Tento typ nap\u00e1jec\u00edho zdroje lze d\u00edky jeho relativn\u011b vysok\u00e9mu v\u00fdstupn\u00edmu proudu a \u0161irok\u00e9mu regula\u010dn\u00edmu rozsahu \u00fasp\u011b\u0161n\u011b pou\u017e\u00edt k zaji\u0161t\u011bn\u00ed stabiln\u00edho a bezpe\u010dn\u00e9ho nap\u00e1jen\u00ed pro r\u016fzn\u00e9 elektronick\u00e9 projekty.<\/p>\n

Dal\u0161\u00ed aplikace vy\u017eaduje pou\u017eit\u00ed \u010dipu LM337T, kter\u00fd umo\u017e\u0148uje snadno a rychle vytvo\u0159it regulovan\u00fd nap\u00e1jec\u00ed zdroj s kladn\u00fdm a z\u00e1porn\u00fdm v\u00fdstupn\u00edm nap\u011bt\u00edm. Takov\u00fd zdroj je ide\u00e1ln\u00ed pro uv\u00e1d\u011bn\u00ed do provozu r\u016fzn\u00fdch typ\u016f obvod\u016f s opera\u010dn\u00edmi zesilova\u010di a umo\u017e\u0148uje prov\u00e1d\u011bt testy elektronick\u00fdch obvod\u016f. Dal\u0161\u00ed pou\u017eit\u00ed line\u00e1rn\u00edho stabiliz\u00e1toru LM317 je v nab\u00edje\u010dk\u00e1ch ur\u010den\u00fdch k dopl\u0148ov\u00e1n\u00ed energie v r\u016fzn\u00fdch typech bateri\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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V\u00fdhody a nev\u00fdhody stabiliz\u00e1toru LM317<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Mezi nejd\u016fle\u017eit\u011bj\u0161\u00ed v\u00fdhody nap\u00e1jec\u00edch syst\u00e9m\u016f tohoto typu<\/a> pat\u0159\u00ed mo\u017enost p\u0159esn\u00e9 regulace v\u00fdstupn\u00edho nap\u011bt\u00ed a stabilita nap\u011bt\u00ed nez\u00e1visl\u00e1 na zm\u011bn\u00e1ch vstupn\u00edho nap\u011bt\u00ed a z\u00e1t\u011b\u017ee.<\/p>\n

Nev\u00fdhodou jsou naopak energetick\u00e9 ztr\u00e1ty ve form\u011b tepla, co\u017e m\u016f\u017ee v\u00e9st k nutnosti pou\u017eit\u00ed dodate\u010dn\u00e9ho chladi\u010de v p\u0159\u00edpad\u011b vysok\u00fdch zat\u011b\u017eovac\u00edch proud\u016f. Dal\u0161\u00ed nev\u00fdhodou je rozd\u00edl mezi \u00farovn\u00ed vstupn\u00edho a v\u00fdstupn\u00edho nap\u011bt\u00ed (tzv. drop-out voltage), kter\u00fd m\u016f\u017ee m\u00edrn\u011b omezovat rozsah nastaven\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Stabiliz\u00e1tor LM317 - dal\u0161\u00ed technick\u00e9 informace<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Maxim\u00e1ln\u00ed v\u00fdstupn\u00ed proud stabiliz\u00e1toru LM317 je 1,5 A. Je v\u0161ak t\u0159eba m\u00edt na pam\u011bti, \u017ee tato hodnota m\u016f\u017ee b\u00fdt omezena p\u016fsoben\u00edm vysok\u00fdch teplot. O bezpe\u010dn\u00fd a stabiln\u00ed provoz stabiliz\u00e1toru se staraj\u00ed vestav\u011bn\u00e9 ochrany, kter\u00e9 chr\u00e1n\u00ed nejen p\u0159ed p\u0159eh\u0159\u00e1t\u00edm, ale tak\u00e9 p\u0159ed proudov\u00fdm p\u0159et\u00ed\u017een\u00edm.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Stabiliz\u00e1tor LM317 - z\u00e1kladn\u00ed informace o krytu<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Stabiliz\u00e1tor LM317 je uzav\u0159en ve krytu TO-220 (Transistor Outline 220<\/em>). Jedn\u00e1 se o jeden z nejb\u011b\u017en\u011bj\u0161\u00edch typ\u016f kryt\u016f pou\u017e\u00edvan\u00fdch k ochran\u011b r\u016fzn\u00fdch typ\u016f elektronick\u00fdch sou\u010d\u00e1stek. Je navr\u017een pro snadnou instalaci a \u00fa\u010dinn\u00fd odvod p\u0159ebyte\u010dn\u00e9ho tepla.<\/p>\n

Kryt TO-220 se skl\u00e1d\u00e1 z kovov\u00e9ho chladi\u010de nebo desky, ke kter\u00e9 je p\u0159ipojen obvod. Izola\u010dn\u00ed \u010d\u00e1st je naopak vyrobena z plastu. Je vybaven t\u0159emi p\u0159\u00edvody v podob\u011b dr\u00e1t\u011bn\u00fdch no\u017ei\u010dek. Kovov\u00fd chladi\u010d je navr\u017een nejen k \u00fa\u010dinn\u00e9mu odv\u00e1d\u011bn\u00ed tepla generovan\u00e9ho \u010dipem b\u011bhem provozu, ale je tak\u00e9 konstruk\u010dn\u00edm prvkem sk\u0159\u00edn\u011b.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Vlastnosti krytu TO-220<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Stabiliz\u00e1tor LM317 zapouzd\u0159en\u00fd v krytu TO-220 je vhodn\u00fd pro pr\u016fchoz\u00ed mont\u00e1\u017e THT (Through-Hole Technology<\/em>). Umo\u017e\u0148uje rychlou a snadnou mont\u00e1\u017e na povrch desky plo\u0161n\u00fdch spoj\u016f (PCB) nebo p\u0159\u00edmo na chladi\u010d. Krom\u011b toho je konstrukce TO-220 navr\u017eena tak, aby efektivn\u011b odv\u00e1d\u011bla teplo, co\u017e umo\u017e\u0148uje relativn\u011b vysok\u00e9 zat\u011b\u017eovac\u00ed proudy.<\/p>\n

Krom\u011b line\u00e1rn\u00edch regul\u00e1tor\u016f nap\u011bt\u00ed LM317 se kryt TO-220 b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 v r\u016fzn\u00fdch elektronick\u00fdch aplikac\u00edch, jako jsou regul\u00e1tory motor\u016f, nap\u00e1jec\u00ed zdroje, regul\u00e1tory a mnoho dal\u0161\u00edch. Nev\u00fdhodou krytu TO-220 je jeho pom\u011brn\u011b velk\u00e1 velikost, kter\u00e1 m\u016f\u017ee znesnad\u0148ovat instalaci v omezen\u00fdch prostor\u00e1ch.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Pr\u016fchoz\u00ed mont\u00e1\u017e line\u00e1rn\u00edho regul\u00e1toru LM317 v proveden\u00ed TO-220<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Mont\u00e1\u017e THT je z\u00e1kladn\u00ed technikou p\u00e1jen\u00ed r\u016fzn\u00fdch typ\u016f elektronick\u00fdch sou\u010d\u00e1stek, kter\u00e9 maj\u00ed v\u00fdvody (vodi\u010de), zn\u00e1m\u00e9 tak\u00e9 jako patky. Osazen\u00ed spo\u010d\u00edv\u00e1 ve vyveden\u00ed patek na druhou stranu desky plo\u0161n\u00fdch spoj\u016f skrz otvory. Na druh\u00e9 stran\u011b desky jsou p\u00e1jec\u00ed pole, ke kter\u00fdm je t\u0159eba p\u0159ip\u00e1jet vodi\u010de. P\u00e1jec\u00ed pole jsou p\u0159ipojena k vodiv\u00fdm cest\u00e1m na desce plo\u0161n\u00fdch spoj\u016f. V p\u0159\u00edpad\u011b pot\u0159eby je t\u0159eba p\u0159\u00edli\u0161 dlouh\u00fd v\u00fdvod opatrn\u011b od\u0159\u00edznout.<\/p>\n

V pr\u016fmyslov\u00fdch aplikac\u00edch byla pr\u016fchoz\u00ed mont\u00e1\u017e THT nahrazena technologi\u00ed SMD, kter\u00e1 je mnohem rychlej\u0161\u00ed. V amat\u00e9rsk\u00fdch projektech se v\u0161ak st\u00e1le pou\u017e\u00edv\u00e1 sestava THT, kterou se snadno nau\u010d\u00ed i za\u010d\u00e1te\u010dn\u00edci v elektronice. Krom\u011b toho nevy\u017eaduje n\u00e1kup a pou\u017e\u00edv\u00e1n\u00ed drah\u00e9ho a obt\u00ed\u017en\u011b pou\u017eiteln\u00e9ho vybaven\u00ed. Dal\u0161\u00ed v\u00fdhodou pr\u016fchoz\u00ed mont\u00e1\u017ee je relativn\u011b vysok\u00e1 odolnost proti chyb\u00e1m p\u0159i p\u00e1jen\u00ed (v\u011bt\u0161inu z nich lze snadno a rychle opravit).<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Co dal\u0161\u00edho stoj\u00ed za to v\u011bd\u011bt o mont\u00e1\u017ei THT?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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K mont\u00e1\u017ei line\u00e1rn\u00edho stabiliz\u00e1toru LM317<\/a> v krytu TO-220 je zapot\u0159eb\u00ed z\u00e1kladn\u00ed ba\u0148kov\u00e1 p\u00e1jka a p\u00e1jec\u00ed pojivo (nap\u0159. c\u00edn). Vyplat\u00ed se tak\u00e9 vybavit se p\u0159\u00edslu\u0161enstv\u00edm v podob\u011b \u010disti\u010de \u010depel\u00ed a \u0161t\u00edpac\u00edch kle\u0161t\u00ed. Po p\u0159ip\u00e1jen\u00ed vodi\u010d\u016f k p\u00e1jec\u00edm pol\u00edm zkontrolujte, zda je spojen\u00ed elektricky a mechanicky spr\u00e1vn\u00e9. Dal\u0161\u00ed f\u00e1ze spo\u010d\u00edvaj\u00ed v kontrole kvality a testov\u00e1n\u00ed dokon\u010den\u00fdch spoj\u016f.<\/p>\n

Mont\u00e1\u017e THT se st\u00e1le hojn\u011b pou\u017e\u00edv\u00e1, zejm\u00e9na v hobby projektech a prototypech. Krom\u011b toho je ide\u00e1ln\u00ed pro projekty, kde je kl\u00ed\u010dov\u00e1 snadn\u00e1 \u00fadr\u017eba.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Co je to line\u00e1rn\u00ed stabiliz\u00e1tor LM317? Jak\u00e9 je jeho vyu\u017eit\u00ed? Technick\u00e9 \u00fadaje line\u00e1rn\u00edho stabiliz\u00e1toru LM317. Stru\u010dn\u00e9 praktick\u00e9 informace.<\/p>\n","protected":false},"author":22,"featured_media":77261,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[548,549],"tags":[],"class_list":["post-78416","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika-cs","category-kompendium-cs"],"acf":[],"yoast_head":"\nLM317 - Co je to? Technick\u00e9 \u00fadaje, sch\u00e9ma, cena a n\u00e1zory - Botland<\/title>\n<meta name=\"description\" content=\"Co je to line\u00e1rn\u00ed stabiliz\u00e1tor LM317? Jak\u00e9 je jeho vyu\u017eit\u00ed? Technick\u00e9 \u00fadaje line\u00e1rn\u00edho stabiliz\u00e1toru LM317. 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