{"id":2940,"date":"2020-09-23T19:19:13","date_gmt":"2020-09-23T17:19:13","guid":{"rendered":"https:\/\/jvelektronika.cz\/?page_id=2940"},"modified":"2020-09-23T19:29:42","modified_gmt":"2020-09-23T17:29:42","slug":"zvyseni-spolehlivosti-napajeci-casti-kritickych-aplikaci","status":"publish","type":"page","link":"https:\/\/jvelektronika.cz\/?page_id=2940","title":{"rendered":"Zv\u00fd\u0161en\u00ed spolehlivosti nap\u00e1jec\u00ed \u010d\u00e1sti kritick\u00fdch aplikac\u00ed"},"content":{"rendered":"\n<p><strong>Pro aplikace vy\u017eaduj\u00edc\u00ed spojit\u00fd p\u0159\u00edvod elektrick\u00e9 energie i p\u0159i poru\u0161e v nap\u00e1jec\u00ed sekci existuje \u0159e\u0161en\u00ed v podob\u011b plnohodnotn\u00e9ho z\u00e1lohov\u00e1n\u00ed \u2013 redundance.<\/strong><\/p>\n\n\n\n<p> S prudk\u00fdm rozvojem kontinu\u00e1ln\u011b pracuj\u00edc\u00edch informa\u010dn\u00edch technologi\u00ed se zvy\u0161uj\u00ed po\u017eadavky na stabilitu a spojitou dod\u00e1vku&nbsp;elektrick\u00e9 energie z nap\u00e1jec\u00edch sb\u011brnic DC. P\u0159\u00edklady aplikac\u00ed s vy\u0161\u0161\u00edmi kvalitativn\u00edmi n\u00e1roky jsou nap\u0159. m\u011b\u0159ic\u00ed stanovi\u0161t\u011b, pr\u016fmyslov\u00e9 po\u010d\u00edta\u010de, servery nebo telekomunika\u010dn\u00ed technika, kde investice do robustnosti nap\u00e1jec\u00ed sekce nedosahuje \u010dasto ani zlomek ztr\u00e1t b\u011bhem odst\u00e1vky v d\u016fsledku poruchy. <\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"473\" height=\"400\" src=\"https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw01.png\" alt=\"\" class=\"wp-image-2941\" srcset=\"https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw01.png 473w, https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw01-300x254.png 300w\" sizes=\"(max-width: 473px) 100vw, 473px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p> V nab\u00eddce renomovan\u00e9ho v\u00fdrobce sp\u00ednan\u00fdch zdroj\u016f MW  jsou zdroje s integrovanou funkc\u00ed redundance (\u0159ada UHP) a moduly zaji\u0161\u0165uj\u00edc\u00ed redundanci nap\u00e1jen\u00ed vhodn\u011b zvolen\u00fdch zdroj\u016f. <\/p>\n\n\n\n<p> Sp\u00ednan\u00e9 nap\u00e1jec\u00ed zdroje \u0159ady UHP, typ R, jsou dod\u00e1v\u00e1ny ve v\u00fdkonech 200, 350 a 500 W. Velikost v\u00fdstupu je podle typu od 3,3 do 48 V. Zdroje UHP maj\u00ed vysokou integraci v\u00fdkonu v objemu, proto jsou rozm\u011brov\u011b nen\u00e1ro\u010dn\u00e9&nbsp;(v\u00fd\u0161ka od 26 mm, \u0161\u00ed\u0159ka od 194 mm). Zabudovan\u00fd regul\u00e1tor \u00fa\u010din\u00edku (PFC) minimalizuje odb\u011br jalov\u00e9 slo\u017eky ze s\u00edt\u011b. Pro z\u00e1t\u011b\u017ee s kr\u00e1tkodobou (&lt;100 ms) proudovou \u0161pi\u010dkou po zapnut\u00ed je ve zdroji implementov\u00e1na funkce 150% p\u0159et\u00ed\u017eitelnosti. V\u00fdhodou je vysok\u00e1 \u00fa\u010dinnost zdroj\u016f UHP dovoluj\u00edc\u00ed i pro model s v\u00fdkonem 500 W samovoln\u00e9 chlazen\u00ed, co\u017e p\u0159in\u00e1\u0161\u00ed absolutn\u011b tich\u00fd chod i v prostor\u00e1ch s p\u0159\u00edsn\u00fdmi akustick\u00fdmi po\u017eadavky. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"196\" height=\"472\" src=\"https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw02.png\" alt=\"\" class=\"wp-image-2942\" srcset=\"https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw02.png 196w, https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw02-125x300.png 125w\" sizes=\"(max-width: 196px) 100vw, 196px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p> Pro uspokojen\u00ed nov\u00fdch spolehlivostn\u00edch po\u017eadavk\u016f MEAN WELL uv\u00e1d\u00ed na trh novou generaci modul\u016f a to ve dvou proveden\u00edch. Pro pr\u016fmyslovou instalaci je ur\u010den typ na DIN li\u0161tu DRDN. Pro mont\u00e1\u017e do \u0161asi uzav\u0159en\u00fd typ ERDN. Obvodov\u00e9 \u0159e\u0161en\u00ed uvnit\u0159 modul\u016f vyu\u017e\u00edv\u00e1 k odd\u011blen\u00ed paraleln\u011b p\u0159ipojen\u00fdch zdroj\u016f m\u00edsto diod tranzistory MOSFET. T\u00edm je minimalizov\u00e1n \u00fabytek na odd\u011blovac\u00edch prvc\u00edch, sn\u00ed\u017eeny tepeln\u00e9 ztr\u00e1ty, zmen\u0161ena plocha zabudovan\u00fdch chladi\u010d\u016f a v d\u016fsledku i po\u017eadavek na prostor v aplikaci. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" loading=\"lazy\" width=\"502\" height=\"382\" src=\"https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw03.png\" alt=\"\" class=\"wp-image-2943\" srcset=\"https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw03.png 502w, https:\/\/jvelektronika.cz\/wp-content\/uploads\/2020\/09\/mw03-300x228.png 300w\" sizes=\"(max-width: 502px) 100vw, 502px\" \/><\/figure>\n\n\n\n<p>Pr\u016fmyslov\u00e1 varianta DRDN je v nab\u00eddce pro hladiny 12\/24\/48 V, max. proud je 20 A (resp. 40 A p\u0159i vhodn\u00e9m zapojen\u00ed). V sou\u010dtu lze z\u00e1lohovat jedn\u00edm modulem z\u00e1t\u011b\u017ee a\u017e do 1,9 kW. Uzav\u0159en\u00e9 proveden\u00ed modulu ERDN lze vybrat pro nap\u011b\u0165ov\u00e9 hladiny 5\/12\/24\/48 V a proudy 20\/40 A. Pro p\u0159ipojen\u00ed vodi\u010d\u016f jsou moduly vybaveny \u0161roubovac\u00edmi svorkami. Nov\u00e1 generace modul\u016f pro zv\u00fd\u0161en\u00ed spolehlivosti nap\u00e1jec\u00ed sekce je vybavena rel\u00e9, kter\u00e1 v p\u0159\u00edpad\u011b v\u00fdpadku jednoho ze zdroj\u016f na vstupu rozpoj\u00ed kontakty pro upozorn\u011bn\u00ed na poruchu v okruhu nap\u00e1jen\u00ed.<\/p>\n\n\n\n<p>D\u00edky kvalit\u011b zpracov\u00e1n\u00ed je pracovn\u00ed teplota modul\u016f od \u201340 do 80 \u00b0C a prodlou\u017een\u00e1 z\u00e1ruka na funk\u010dnost t\u0159i roky.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>Zdroj informac\u00ed:  <a href=\"https:\/\/www.meanwell.com\/\">https:\/\/www.meanwell.com\/<\/a><\/p>\n\n\n\n<p>Publikov\u00e1no: 23. 9. 2020<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Pro aplikace vy\u017eaduj\u00edc\u00ed spojit\u00fd p\u0159\u00edvod elektrick\u00e9 energie i p\u0159i poru\u0161e v nap\u00e1jec\u00ed sekci existuje \u0159e\u0161en\u00ed v podob\u011b plnohodnotn\u00e9ho z\u00e1lohov\u00e1n\u00ed \u2013 redundance. S prudk\u00fdm rozvojem kontinu\u00e1ln\u011b pracuj\u00edc\u00edch informa\u010dn\u00edch technologi\u00ed se zvy\u0161uj\u00ed po\u017eadavky na stabilitu a spojitou dod\u00e1vku&nbsp;elektrick\u00e9 energie z nap\u00e1jec\u00edch sb\u011brnic DC. P\u0159\u00edklady aplikac\u00ed s vy\u0161\u0161\u00edmi kvalitativn\u00edmi n\u00e1roky jsou nap\u0159. m\u011b\u0159ic\u00ed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/2940"}],"collection":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2940"}],"version-history":[{"count":2,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/2940\/revisions"}],"predecessor-version":[{"id":2950,"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=\/wp\/v2\/pages\/2940\/revisions\/2950"}],"wp:attachment":[{"href":"https:\/\/jvelektronika.cz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}