{"id":66786,"date":"2023-03-17T06:38:54","date_gmt":"2023-03-17T05:38:54","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/dioda-prostownicza-co-to-jest-zasada-dzialania-i-zastosowanie\/"},"modified":"2023-07-27T15:44:59","modified_gmt":"2023-07-27T13:44:59","slug":"usmernovaci-dioda-co-to-je-princip-fungovani-a-pouziti","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/usmernovaci-dioda-co-to-je-princip-fungovani-a-pouziti\/","title":{"rendered":"Usm\u011br\u0148ovac\u00ed dioda &#8211; co to je? Princip fungov\u00e1n\u00ed a pou\u017eit\u00ed"},"content":{"rendered":"<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u010cas \u010dten\u00ed:<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">min.<\/span><\/span>\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"66786\" class=\"elementor elementor-66786 elementor-43300\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-18b5fcb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"18b5fcb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8dffbe9\" data-id=\"8dffbe9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b1cee68 elementor-widget elementor-widget-text-editor\" data-id=\"b1cee68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nUsm\u011br\u0148ovac\u00ed diody se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed v elektronick\u00fdch obvodech a za\u0159\u00edzen\u00edch. Zjist\u011bte, co jsou za\u010d a jak funguj\u00ed!\n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-13b1518 elementor-widget elementor-widget-heading\" data-id=\"13b1518\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><h2 data-elementor-setting-key=\"title\" data-pen-placeholder=\"Pisz tutaj...\" style=\"font-family: var( --e-global-typography-primary-font-family ), Sans-serif;font-weight: var( --e-global-typography-primary-font-weight )\">Co je to usm\u011br\u0148ovac\u00ed dioda?<\/h2><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-1afe95c elementor-section-full_width elementor-section-content-middle elementor-section-height-default elementor-section-height-default\" data-id=\"1afe95c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-24a5ea9\" data-id=\"24a5ea9\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8561322 elementor-widget elementor-widget-text-editor\" data-id=\"8561322\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: #ffffff; font-size: 1rem;\" href=\"\/346-diody-prostownicze\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">Usm\u011br\u0148ovac\u00ed dioda<\/a> pat\u0159\u00ed mezi pasivn\u00ed sou\u010d\u00e1stky, tj. elektronick\u00e9 sou\u010d\u00e1stky, kter\u00e9 nevyr\u00e1b\u011bj\u00ed elektrickou energii. Stejn\u011b jako v\u0161echny diody m\u00e1 asymetrickou strukturu a v ka\u017ed\u00e9m sm\u011bru vede proud jinak. Proto jsou usm\u011br\u0148ovac\u00ed diody schopny &#8220;usm\u011br\u0148ovat&#8221; v\u00edcesm\u011brn\u00fd st\u0159\u00eddav\u00fd proud z elektrick\u00e9 s\u00edt\u011b a p\u0159ev\u00e1d\u011bt jej na stejnosm\u011brn\u00fd proud. Prvky tohoto typu jsou velmi roz\u0161\u00ed\u0159en\u00e9 v syst\u00e9mech stejnosm\u011brn\u00e9ho proudu nap\u00e1jen\u00fdch ze s\u00edt\u011b a jsou kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed mnoha elektronick\u00fdch za\u0159\u00edzen\u00ed a instalac\u00ed.<\/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<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-17a0179\" data-id=\"17a0179\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b44a843 elementor-widget elementor-widget-image\" data-id=\"b44a843\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"01803_1_kwadrat\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTg3MzYsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmN6XC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8wM1wvMDE4MDNfMV9rd2FkcmF0LmpwZyJ9\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat-1024x1024.jpg\" class=\"attachment-large size-large wp-image-58736\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat-1024x1024.jpg 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat-300x300.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat-150x150.jpg 150w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat-768x768.jpg 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/01803_1_kwadrat.jpg 1080w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Usm\u011br\u0148ovac\u00ed dioda.<\/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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-ecd44a0 elementor-align-center elementor-widget elementor-widget-button\" data-id=\"ecd44a0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/346-usm\u011br\u0148ova\u010d-diody\" target=\"_blank\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">POD\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<div class=\"elementor-element elementor-element-67f3a2b elementor-widget elementor-widget-spacer\" data-id=\"67f3a2b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1281699 elementor-widget elementor-widget-heading\" data-id=\"1281699\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Usm\u011br\u0148ovac\u00ed dioda - konstrukce<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06c12d1 elementor-widget elementor-widget-text-editor\" data-id=\"06c12d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Nejtypi\u010dt\u011bj\u0161\u00edm a nej\u010dast\u011bji pou\u017e\u00edvan\u00fdm typem usm\u011br\u0148ovac\u00ed diody je k\u0159em\u00edkov\u00e1 dioda. Stejn\u011b jako ostatn\u00ed typy <a href=\"\/57-diody\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">diod<\/a> se skl\u00e1d\u00e1 z anody a katody, v tomto p\u0159\u00edpad\u011b se vyskytuje jako jedin\u00fd polovodi\u010dov\u00fd p-n p\u0159echod. K\u0159em\u00edkov\u00e9 diody maj\u00ed schopnost v\u00e9st vysok\u00e9 proudy a nap\u011bt\u00ed a vyzna\u010duj\u00ed se kompaktn\u00edmi rozm\u011bry a vysokou teplotn\u00ed odolnost\u00ed. V sou\u010dasn\u00e9 dob\u011b prakticky vytla\u010dily d\u0159\u00edve pou\u017e\u00edvan\u00e9 germaniov\u00e9 diody.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4cbcdda elementor-widget elementor-widget-heading\" data-id=\"4cbcdda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><h3 style=\"white-space: normal\">Vn\u011bj\u0161\u00ed konstrukce<\/h3><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c30e57c elementor-widget elementor-widget-text-editor\" data-id=\"c30e57c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Zvenku p\u0159ipom\u00ednaj\u00ed usm\u011br\u0148ovac\u00ed diody v\u00e1lce navle\u010den\u00e9 na tenk\u00e9m dr\u00e1tu. Spr\u00e1vn\u00fd sm\u011br polarity lze snadno ur\u010dit podle pruhu na pouzd\u0159e &#8211; je v\u017edy na katodov\u00e9 stran\u011b.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6042280 elementor-widget elementor-widget-image\" data-id=\"6042280\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"150\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/diode-gfc2076f66_1280-300x150.png\" class=\"attachment-medium size-medium wp-image-58738\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/diode-gfc2076f66_1280-300x150.png 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/diode-gfc2076f66_1280-1024x512.png 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/diode-gfc2076f66_1280-768x384.png 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/diode-gfc2076f66_1280.png 1280w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Symbol usm\u011br\u0148ovac\u00ed diody.<\/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<div class=\"elementor-element elementor-element-793d2f7 elementor-widget elementor-widget-heading\" data-id=\"793d2f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><h3 style=\"white-space: normal\">Specifick\u00e9 typy usm\u011br\u0148ovac\u00edch diod<\/h3><\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3109bc9 elementor-widget elementor-widget-text-editor\" data-id=\"3109bc9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Krom\u011b standardn\u00edch k\u0159em\u00edkov\u00fdch diod se mezi usm\u011br\u0148ovac\u00ed diody \u010dasto \u0159ad\u00ed i Schottkyho diody nebo gasotrony a vakuov\u00e9 diody vzhledem k jejich funkci.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c64ddf elementor-widget elementor-widget-heading\" data-id=\"2c64ddf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\"><h4 style=\"white-space: normal\">Schottkyho dioda<\/h4><\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-4e629d4 elementor-section-full_width elementor-section-content-middle elementor-section-height-default elementor-section-height-default\" data-id=\"4e629d4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-ddd7529\" data-id=\"ddd7529\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e19e2df elementor-widget elementor-widget-image\" data-id=\"e19e2df\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/03\/00178_2.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 90\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTg3MzcsInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmN6XC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8wM1wvMDAxNzhfMi5qcGcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/00178_2.jpg\" class=\"attachment-large size-large wp-image-58737\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/00178_2.jpg 700w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/00178_2-300x300.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/00178_2-150x150.jpg 150w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Schottkyho dioda.<\/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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a6262d2\" data-id=\"a6262d2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3e58c29 elementor-widget elementor-widget-text-editor\" data-id=\"3e58c29\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><a style=\"font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight ); background-color: #ffffff; font-size: 1rem;\" href=\"\/72-diody-schottky\" target=\"_blank\" rel=\"noopener\" data-wpel-link=\"internal\">Schottkyho dioda<\/a><span style=\"font-size: 1rem;\"> m\u00e1 m\u00edsto polovodi\u010dov\u00e9ho p\u0159echodu p-n p\u0159echod kov-polovodi\u010d (m-s), co\u017e co nejv\u00edce sni\u017euje elektrickou kapacitu p\u0159echodu. Schottkyho diody se proto vyzna\u010duj\u00ed extr\u00e9mn\u011b kr\u00e1tkou dobou sp\u00edn\u00e1n\u00ed (zm\u011bna polarizace ve vodivostn\u00edm sm\u011bru na polarizaci v odporov\u00e9m sm\u011bru), kter\u00e1 je typicky jen asi 100 ps. Krom\u011b toho maj\u00ed tyto prvky n\u00edzk\u00fd \u00fabytek nap\u011bt\u00ed ve sm\u011bru veden\u00ed, ni\u017e\u0161\u00ed zp\u011btn\u00fd proud ne\u017e ostatn\u00ed diody a relativn\u011b n\u00edzk\u00fd odpor ve sm\u011bru veden\u00ed, jako\u017e i vysokou trvanlivost a mechanickou pevnost. D\u00edky t\u011bmto vlastnostem se Schottkyho diody pou\u017e\u00edvaj\u00ed ve sp\u00ednan\u00fdch zdroj\u00edch, m\u011bni\u010d\u00edch nebo elektronick\u00fdch ochrann\u00fdch obvodech.<\/span><\/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 class=\"elementor-element elementor-element-b0d0e99 elementor-align-center elementor-widget elementor-widget-global elementor-global-22630 elementor-widget-button\" data-id=\"b0d0e99\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"\/234-arduino\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">SIEHE HIER<\/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<div class=\"elementor-element elementor-element-d0d0a8d elementor-widget elementor-widget-heading\" data-id=\"d0d0a8d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\"><h4 style=\"white-space: normal\">Vakuov\u00e9 diody a gasotrony<\/h4><\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c03a635 elementor-widget elementor-widget-text-editor\" data-id=\"c03a635\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Vakuov\u00e9 diody a gasotrony pat\u0159\u00ed mezi elektronky. Oba typy maj\u00ed elektrody uzav\u0159en\u00e9 ve vakuov\u00e9m pouzd\u0159e, jeho\u017e katoda m\u00e1 p\u0159\u00eddavn\u00e9 topn\u00e9 t\u011bleso. Zah\u0159\u00edv\u00e1n\u00ed katody zp\u016fsobuje emisi elektron\u016f a jejich pohyb k anod\u011b, co\u017e znamen\u00e1 tok proudu v opa\u010dn\u00e9m sm\u011bru (od anody ke katod\u011b). P\u0159i opa\u010dn\u00e9 polarit\u011b pole vytvo\u0159en\u00e9 mezi elektrodami neumo\u017e\u0148uje pohyb elektron\u016f, tak\u017ee tok proudu v z\u00e1porn\u00e9m sm\u011bru je zablokov\u00e1n a dioda p\u0159estane v\u00e9st. Usm\u011br\u0148ovac\u00ed diody tohoto typu se pou\u017e\u00edvaj\u00ed nap\u0159\u00edklad v rozhlasov\u00fdch p\u0159ij\u00edma\u010d\u00edch, l\u00e9ka\u0159sk\u00fdch p\u0159\u00edstroj\u00edch nebo televizorech.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4abcb50 elementor-widget elementor-widget-heading\" data-id=\"4abcb50\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Usm\u011br\u0148ovac\u00ed diody: kl\u00ed\u010dov\u00e9 parametry<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b0aa5ce elementor-widget elementor-widget-text-editor\" data-id=\"b0aa5ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nUsm\u011br\u0148ovac\u00ed diody maj\u00ed n\u011bkolik z\u00e1kladn\u00edch parametr\u016f, kter\u00e9 ur\u010duj\u00ed jejich pou\u017eit\u00ed v konkr\u00e9tn\u00edch aplikac\u00edch.\n<\/p>\n<h3>Maxim\u00e1ln\u00ed zp\u011btn\u00e9 nap\u011bt\u00ed<\/h3>\n\n\n<p>\nTento parametr ur\u010duje maxim\u00e1ln\u00ed nap\u011bt\u00ed, kter\u00e9 m\u016f\u017ee prot\u00e9kat diodou ve zp\u011btn\u00e9m sm\u011bru, ani\u017e by hrozilo po\u0161kozen\u00ed diody (hodnota se ud\u00e1v\u00e1 ve voltech).\n<\/p>\n<h3>Maxim\u00e1ln\u00ed vodiv\u00fd proud<\/h3>\n\n\n<p>\nTento parametr ur\u010duje maxim\u00e1ln\u00ed hodnotu proudu (za st\u00e1l\u00e9ho provozu), kter\u00fd m\u016f\u017ee diodou bezpe\u010dn\u011b proch\u00e1zet ve sm\u011bru veden\u00ed (hodnota se ud\u00e1v\u00e1 v amp\u00e9rech). Ve stejn\u00e9 jednotce je uveden maxim\u00e1ln\u00ed okam\u017eit\u00fd proud nebo odolnost proti p\u0159et\u00ed\u017een\u00ed.\n<\/p>\n<h3>Maxim\u00e1ln\u00ed ztr\u00e1ta v\u00fdkonu<\/h3>\n\n\n<p>\nTento parametr ur\u010duje maxim\u00e1ln\u00ed ztr\u00e1tov\u00fd v\u00fdkon na diod\u011b (ud\u00e1van\u00fd ve wattech). V\u00fdkon se p\u0159em\u011b\u0148uje na tepelnou energii, proto se diody p\u0159i vysok\u00fdch hodnot\u00e1ch proudu zah\u0159\u00edvaj\u00ed.\n<\/p>\n<h3>Vodiv\u00e9 nap\u011bt\u00ed<\/h3>\n\n\n<p>\nTento parametr ur\u010duje nap\u011bt\u00ed mezi svorkami diody.\n<\/p>\n<h3>Maxim\u00e1ln\u00ed provozn\u00ed teplota<\/h3>\n\n\n<p>\nKrom\u011b toho je velmi d\u016fle\u017eit\u00fdm parametrem ka\u017ed\u00e9 usm\u011br\u0148ovac\u00ed diody (a v\u0161ech ostatn\u00edch typ\u016f diod) maxim\u00e1ln\u00ed provozn\u00ed teplota. Tato hodnota by nem\u011bla b\u00fdt p\u0159ekro\u010dena, proto\u017ee hroz\u00ed po\u0161kozen\u00ed sou\u010d\u00e1sti a cel\u00e9ho syst\u00e9mu a v krajn\u00edm p\u0159\u00edpad\u011b i po\u017e\u00e1r. \n<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c358e44 elementor-widget elementor-widget-heading\" data-id=\"c358e44\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Pou\u017eit\u00ed usm\u011br\u0148ovac\u00ed diody<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-1d708df elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1d708df\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-76afaba\" data-id=\"76afaba\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8073ad1 elementor-widget elementor-widget-text-editor\" data-id=\"8073ad1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\nUsm\u011br\u0148ovac\u00ed diody maj\u00ed \u0161irokou \u0161k\u00e1lu pou\u017eit\u00ed &#8211; jsou jednou z nejpou\u017e\u00edvan\u011bj\u0161\u00edch elektronick\u00fdch sou\u010d\u00e1stek. Mezi nejv\u00fdznamn\u011bj\u0161\u00ed aplikace usm\u011br\u0148ovac\u00edch diod pat\u0159\u00ed:\n<\/p>\n<ul>\n\n<li>nap\u00e1jec\u00ed syst\u00e9my a nap\u00e1jec\u00ed zdroje, kter\u00e9 m\u011bn\u00ed st\u0159\u00eddav\u00fd proud ze s\u00edt\u011b na stejnosm\u011brn\u00fd proud, kter\u00fd je schopen nap\u00e1jet elektronick\u00e1 za\u0159\u00edzen\u00ed;\n\n<li>m\u011bni\u010de, m\u011bni\u010de nap\u011bt\u00ed a frekvence;\n\n<li>stabiliza\u010dn\u00ed syst\u00e9my a syst\u00e9my p\u0159ep\u011b\u0165ov\u00e9 ochrany;\n\n<li>obvody pro ochranu za\u0159\u00edzen\u00ed p\u0159ed nespr\u00e1vn\u00fdm p\u0159ipojen\u00edm nap\u00e1jen\u00ed (obr\u00e1cen\u00e1 polarita).\n<\/li>\n<\/ul>\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<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-28e0e54\" data-id=\"28e0e54\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f8de5f6 elementor-widget elementor-widget-image\" data-id=\"f8de5f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/botland.com.pl\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L.jpg\" data-elementor-open-lightbox=\"yes\" data-elementor-lightbox-title=\"Depositphotos_394291020_L\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6NTg3MzksInVybCI6Imh0dHBzOlwvXC9ib3RsYW5kLmN6XC9ibG9nXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDIzXC8wM1wvRGVwb3NpdHBob3Rvc18zOTQyOTEwMjBfTC5qcGcifQ%3D%3D\" data-wpel-link=\"internal\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L-1024x768.jpg\" class=\"attachment-large size-large wp-image-58739\" alt=\"\" srcset=\"https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L-1024x768.jpg 1024w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L-300x225.jpg 300w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L-768x576.jpg 768w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L-1536x1152.jpg 1536w, https:\/\/botland.cz\/blog\/wp-content\/uploads\/2023\/03\/Depositphotos_394291020_L.jpg 2000w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Usm\u011br\u0148ovac\u00ed diody pou\u017eit\u00e9 na desce plo\u0161n\u00fdch spoj\u016f.<\/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\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\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<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cab3fc2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cab3fc2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d009c4f\" data-id=\"d009c4f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-40f494b elementor-widget elementor-widget-spacer\" data-id=\"40f494b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\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":"<p>Usm\u011br\u0148ovac\u00ed diody se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed v elektronick\u00fdch obvodech a za\u0159\u00edzen\u00edch. Zjist\u011bte, co jsou za\u010d a jak funguj\u00ed!<\/p>\n","protected":false},"author":21,"featured_media":63523,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[548,549],"tags":[],"class_list":["post-66786","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika-cs","category-kompendium-cs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Usm\u011br\u0148ovac\u00ed dioda - co to je? Princip fungov\u00e1n\u00ed a pou\u017eit\u00ed - Botland<\/title>\n<meta name=\"description\" content=\"Usm\u011br\u0148ovac\u00ed dioda je jednou z nejobl\u00edben\u011bj\u0161\u00edch pasivn\u00edch sou\u010d\u00e1stek. 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