{"id":51491,"date":"2026-01-15T20:50:11","date_gmt":"2026-01-15T19:50:11","guid":{"rendered":"https:\/\/connectaled.com\/proc-jsou-spinane-zdroje-smps-nezbytne-pro-moderni-elektroniku-a-led-osvetleni\/"},"modified":"2026-02-22T20:49:46","modified_gmt":"2026-02-22T19:49:46","slug":"proc-jsou-spinane-zdroje-smps-nezbytne-pro-moderni-elektroniku-a-led-osvetleni","status":"publish","type":"post","link":"https:\/\/connectaled.com\/cs\/proc-jsou-spinane-zdroje-smps-nezbytne-pro-moderni-elektroniku-a-led-osvetleni\/","title":{"rendered":"Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed"},"content":{"rendered":"\n<div>\n<h1>Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed<\/h1>\n\n<p><em>(Prim\u00e1rn\u00ed kl\u00ed\u010dov\u00e1 slova: sp\u00ednan\u00fd zdroj, SMPS, LED driver, \u00fa\u010dinnost nap\u00e1jec\u00edho zdroje, line\u00e1rn\u00ed zdroj vs. SMPS)<\/em><\/p>\n\n<p>Modern\u00ed elektronick\u00e1 za\u0159\u00edzen\u00ed \u2013 po\u010d\u00edta\u010de, nap\u00e1jec\u00ed zdroje a zejm\u00e9na <strong>LED osv\u011btlovac\u00ed syst\u00e9my<\/strong> \u2013 se t\u00e9m\u011b\u0159 v\u00fdhradn\u011b spol\u00e9haj\u00ed na <strong>sp\u00ednan\u00e9 zdroje (SMPS)<\/strong>. D\u016fvod je jednoduch\u00fd: <strong>vy\u0161\u0161\u00ed energetick\u00e1 \u00fa\u010dinnost, men\u0161\u00ed rozm\u011bry a ni\u017e\u0161\u00ed tepeln\u00e9 ztr\u00e1ty<\/strong> ve srovn\u00e1n\u00ed s tradi\u010dn\u00edmi line\u00e1rn\u00edmi zdroji.  <\/p>\n\n<h2>Tradi\u010dn\u00ed (line\u00e1rn\u00ed) zdroje: ne\u00fa\u010dinn\u00e9 od z\u00e1kladu<\/h2>\n\n<p><strong>Line\u00e1rn\u00ed zdroj<\/strong> funguje tak, \u017ee nejprve sn\u00ed\u017e\u00ed nap\u011bt\u00ed a pot\u00e9 <strong>odstran\u00ed p\u0159ebyte\u010dnou energii analogovou regulac\u00ed<\/strong>, obvykle pomoc\u00ed tranzistoru.<\/p>\n\n<p>Tato p\u0159ebyte\u010dn\u00e1 energie nezmiz\u00ed \u2013 p\u0159em\u011b\u0148uje se p\u0159\u00edmo na <strong>teplo<\/strong>.<\/p>\n\n<ul>\n  <li>n\u00edzk\u00e1 \u00fa\u010dinnost<\/li>\n  <li>vysok\u00e9 tepeln\u00e9 ztr\u00e1ty<\/li>\n  <li>velk\u00e9 transform\u00e1tory a chladi\u010de<\/li>\n  <li>objemn\u00e9 a t\u011b\u017ek\u00e9 nap\u00e1jec\u00ed zdroje<\/li>\n<\/ul>\n\n<p>Pro modern\u00ed elektroniku a LED syst\u00e9my ji\u017e tento p\u0159\u00edstup nen\u00ed praktick\u00fd.<\/p>\n\n<h2>Jak sp\u00ednan\u00e9 zdroje (SMPS) zlep\u0161uj\u00ed \u00fa\u010dinnost<\/h2>\n\n<p><strong>Sp\u00ednan\u00fd zdroj<\/strong> nepl\u00fdtv\u00e1 energi\u00ed jej\u00edm p\u0159em\u011b\u0148ov\u00e1n\u00edm na teplo.<\/p>\n\n<p>M\u00edsto toho:<\/p>\n\n<ul>\n  <li>sp\u00edn\u00e1 energii <strong>s vysokou frekvenc\u00ed zap\u00edn\u00e1n\u00edm a vyp\u00edn\u00e1n\u00edm<\/strong><\/li>\n  <li>typicky <strong>30 kHz a\u017e 150 kHz<\/strong><\/li>\n  <li>p\u0159en\u00e1\u0161\u00ed energii v <strong>mal\u00fdch, p\u0159esn\u011b \u0159\u00edzen\u00fdch paketech<\/strong><\/li>\n<\/ul>\n\n<p>Tyto pakety jsou dod\u00e1v\u00e1ny desetitis\u00edce kr\u00e1t za sekundu a poskytuj\u00ed <strong>p\u0159esn\u011b takov\u00e9 mno\u017estv\u00ed energie, kter\u00e9<\/strong> z\u00e1t\u011b\u017e pot\u0159ebuje.<\/p>\n\n<ul>\n  <li>velmi vysok\u00e1 \u00fa\u010dinnost (\u010dasto >90\u00a0%)<\/li>\n  <li>minim\u00e1ln\u00ed v\u00fdvoj tepla<\/li>\n  <li>mnohem men\u0161\u00ed magnetick\u00e9 komponenty<\/li>\n  <li>kompaktn\u00ed a lehk\u00e9 konstrukce<\/li>\n<\/ul>\n\n<h2>Pro\u010d je technologie SMPS ide\u00e1ln\u00ed pro LED drivery<\/h2>\n\n<p>LED jsou <strong>za\u0159\u00edzen\u00ed \u0159\u00edzen\u00e1 proudem<\/strong>, co\u017e znamen\u00e1, \u017ee vy\u017eaduj\u00ed:<\/p>\n\n<ul>\n  <li>p\u0159esnou regulaci proudu<\/li>\n  <li>stabiln\u00ed nap\u00e1jen\u00ed<\/li>\n  <li>minim\u00e1ln\u00ed teplo uvnit\u0159 driveru<\/li>\n<\/ul>\n\n<p>To je p\u0159esn\u011b to, co <strong>LED drivery zalo\u017een\u00e9 na SMPS<\/strong> poskytuj\u00ed.<\/p>\n\n<p>Modern\u00ed LED driver:<\/p>\n\n<ul>\n  <li>reguluje <strong>proud, nejen nap\u011bt\u00ed<\/strong><\/li>\n  <li>udr\u017euje vysokou \u00fa\u010dinnost a n\u00edzk\u00e9 ztr\u00e1ty<\/li>\n  <li>chr\u00e1n\u00ed LED p\u0159ed nadproudem<\/li>\n  <li>umo\u017e\u0148uje kompaktn\u00ed sv\u00edtidla a LED p\u00e1sky<\/li>\n  <li>podporuje stm\u00edv\u00e1n\u00ed, PWM a \u0159\u00edzen\u00ed CCT<\/li>\n<\/ul>\n\n<p>Bez technologie SMPS by <strong>vysoce \u00fa\u010dinn\u00e9 LED osv\u011btlen\u00ed nebylo mo\u017en\u00e9<\/strong>.<\/p>\n\n<h2>Princip LED driveru (jednoduch\u00e9 blokov\u00e9 vysv\u011btlen\u00ed)<\/h2>\n\n<p><strong>Jak to funguje (zjednodu\u0161en\u011b):<\/strong><\/p>\n\n<ol>\n  <li>AC nebo DC vstup je usm\u011brn\u011bn<\/li>\n  <li>Vysokofrekven\u010dn\u00ed sp\u00edn\u00e1n\u00ed \u0159\u00edd\u00ed tok energie<\/li>\n  <li>Mal\u00fd transform\u00e1tor nebo c\u00edvka p\u0159en\u00e1\u0161\u00ed energii<\/li>\n  <li>Zp\u011btnovazebn\u00ed obvod udr\u017euje proud LED stabiln\u00ed<\/li>\n<\/ol>\n\n<p>To umo\u017e\u0148uje <strong>p\u0159esn\u00e9 dod\u00e1v\u00e1n\u00ed energie s minim\u00e1ln\u00edmi ztr\u00e1tami<\/strong>.<\/p>\n\n<h2>Jednoduch\u00e9 analogie: voda a vlaky<\/h2>\n\n<h3>Analogie s vodou<\/h3>\n\n<p>Line\u00e1rn\u00ed zdroj je jako \u010derp\u00e1n\u00ed <strong>p\u0159\u00edli\u0161 velk\u00e9ho mno\u017estv\u00ed vody<\/strong> a odv\u00e1d\u011bn\u00ed p\u0159ebytku p\u0159epadem. SMPS dod\u00e1v\u00e1 <strong>pouze to, co je pot\u0159eba<\/strong>, kapku po kapce, velmi rychle \u2013 \u017e\u00e1dn\u00e9 pl\u00fdtv\u00e1n\u00ed.  <\/p>\n\n<h3>Analogie s vlakem<\/h3>\n\n<p>Line\u00e1rn\u00ed zdroj pos\u00edl\u00e1 <strong>p\u0159edimenzovan\u00fd vag\u00f3n<\/strong> a vyhazuje nevyu\u017eit\u00fd n\u00e1klad. SMPS pos\u00edl\u00e1 <strong>mnoho mal\u00fdch vag\u00f3n\u016f<\/strong> vysokou rychlost\u00ed, z nich\u017e ka\u017ed\u00fd p\u0159epravuje p\u0159esn\u011b spr\u00e1vn\u00e9 mno\u017estv\u00ed energie.  <\/p>\n\n<h2>Line\u00e1rn\u00ed zdroj vs. SMPS (stru\u010dn\u00e9 srovn\u00e1n\u00ed)<\/h2>\n\n<table border=\"1\" cellpadding=\"6\" cellspacing=\"0\">\n  <thead>\n    <tr>\n      <th>Vlastnost<\/th>\n <th>Line\u00e1rn\u00ed zdroj<\/th>\n <th>Sp\u00ednan\u00fd zdroj (SMPS)<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>\u00da\u010dinnost<\/td>\n <td>N\u00edzk\u00e1 (40\u201360\u00a0%)<\/td>\n <td>Vysok\u00e1 (80\u201395\u00a0%+)<\/td>\n    <\/tr>\n    <tr>\n      <td>V\u00fdvoj tepla<\/td>\n <td>Vysok\u00fd<\/td>\n <td>N\u00edzk\u00fd<\/td>\n    <\/tr>\n    <tr>\n      <td>Velikost transform\u00e1toru<\/td>\n <td>Velk\u00e1<\/td>\n <td>Mal\u00e1<\/td>\n    <\/tr>\n    <tr>\n      <td>Celkov\u00e1 velikost<\/td>\n <td>Objemn\u00e1<\/td>\n <td>Kompaktn\u00ed<\/td>\n    <\/tr>\n    <tr>\n      <td>Hmotnost<\/td>\n <td>T\u011b\u017ek\u00e1<\/td>\n <td>Lehk\u00e1<\/td>\n    <\/tr>\n    <tr>\n      <td>Pl\u00fdtv\u00e1n\u00ed energi\u00ed<\/td>\n <td>P\u0159ebytek se spaluje jako teplo<\/td>\n <td>Minim\u00e1ln\u00ed<\/td>\n    <\/tr>\n    <tr>\n      <td>Vhodnost pro LED drivery<\/td>\n <td>\u0160patn\u00e1<\/td>\n <td>Vynikaj\u00edc\u00ed<\/td>\n    <\/tr>\n    <tr>\n      <td>Stm\u00edv\u00e1n\u00ed a \u0159\u00edzen\u00ed<\/td>\n <td>Omezen\u00e9<\/td>\n <td>Pokro\u010dil\u00e9 (PWM, CCT)<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>Pro\u010d SMPS dominuj\u00ed modern\u00ed elektronice<\/h2>\n\n<p>P\u0159enosem energie <strong>pouze v p\u0159\u00edpad\u011b pot\u0159eby a pouze v pot\u0159ebn\u00e9m mno\u017estv\u00ed<\/strong> dosahuj\u00ed sp\u00ednan\u00e9 zdroje:<\/p>\n\n<ul>\n  <li>vy\u0161\u0161\u00ed \u00fa\u010dinnosti<\/li>\n  <li>ni\u017e\u0161\u00edch provozn\u00edch teplot<\/li>\n  <li>men\u0161\u00edch fyzick\u00fdch rozm\u011br\u016f<\/li>\n  <li>del\u0161\u00ed \u017eivotnosti komponent<\/li>\n<\/ul>\n\n<p>Proto je <strong>SMPS p\u00e1te\u0159\u00ed modern\u00edch elektronick\u00fdch a LED osv\u011btlovac\u00edch syst\u00e9m\u016f<\/strong>.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed (Prim\u00e1rn\u00ed kl\u00ed\u010dov\u00e1 slova: sp\u00ednan\u00fd zdroj, SMPS, LED driver, \u00fa\u010dinnost nap\u00e1jec\u00edho zdroje, line\u00e1rn\u00ed zdroj vs. SMPS) Modern\u00ed elektronick\u00e1 za\u0159\u00edzen\u00ed \u2013 po\u010d\u00edta\u010de, nap\u00e1jec\u00ed zdroje a zejm\u00e9na LED osv\u011btlovac\u00ed syst\u00e9my \u2013 se t\u00e9m\u011b\u0159 v\u00fdhradn\u011b spol\u00e9haj\u00ed na sp\u00ednan\u00e9 zdroje (SMPS). D\u016fvod je jednoduch\u00fd: vy\u0161\u0161\u00ed energetick\u00e1 \u00fa\u010dinnost, men\u0161\u00ed &#8230; <a title=\"Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed\" class=\"read-more\" href=\"https:\/\/connectaled.com\/cs\/proc-jsou-spinane-zdroje-smps-nezbytne-pro-moderni-elektroniku-a-led-osvetleni\/\" aria-label=\"\u010c\u00edst v\u00edce o Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":51492,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[90],"tags":[],"class_list":["post-51491","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energeticka-ucinnost-osvetleni"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed &#8226; Connecta<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/connectaled.com\/cs\/proc-jsou-spinane-zdroje-smps-nezbytne-pro-moderni-elektroniku-a-led-osvetleni\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed &#8226; Connecta\" \/>\n<meta property=\"og:description\" content=\"Pro\u010d jsou sp\u00ednan\u00e9 zdroje (SMPS) nezbytn\u00e9 pro modern\u00ed elektroniku a LED osv\u011btlen\u00ed (Prim\u00e1rn\u00ed kl\u00ed\u010dov\u00e1 slova: sp\u00ednan\u00fd zdroj, SMPS, LED driver, \u00fa\u010dinnost nap\u00e1jec\u00edho zdroje, line\u00e1rn\u00ed zdroj vs. SMPS) Modern\u00ed elektronick\u00e1 za\u0159\u00edzen\u00ed \u2013 po\u010d\u00edta\u010de, nap\u00e1jec\u00ed zdroje a zejm\u00e9na LED osv\u011btlovac\u00ed syst\u00e9my \u2013 se t\u00e9m\u011b\u0159 v\u00fdhradn\u011b spol\u00e9haj\u00ed na sp\u00ednan\u00e9 zdroje (SMPS). 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