{"id":2051,"date":"2024-11-28T06:34:13","date_gmt":"2024-11-28T06:34:13","guid":{"rendered":"https:\/\/seminglight.com\/?p=2051"},"modified":"2026-07-09T08:33:07","modified_gmt":"2026-07-09T08:33:07","slug":"la-difference-entre-une-alimentation-electrique-isolee-et-non-isolee","status":"publish","type":"post","link":"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/","title":{"rendered":"La diff\u00e9rence entre une alimentation \u00e9lectrique isol\u00e9e et non isol\u00e9e"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table des mati\u00e8res\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#Bottom_side_circuit\" >Circuit inf\u00e9rieur<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#What_are_the_differences_between_them\" >Quelles sont les diff\u00e9rences entre eux ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#Isolation\" >L'isolement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#Why_Use_an_Isolated_Power_Supply\" >Pourquoi utiliser une alimentation isol\u00e9e ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#Non-isolated\" >Non isol\u00e9e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#Why_Use_a_Non-Isolated_Power_Supply\" >Pourquoi utiliser une alimentation non isol\u00e9e ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/seminglight.com\/fr\/the-difference-between-isolated-and-non-isolated-power-supply\/#Summary\" >R\u00e9sum\u00e9<\/a><\/li><\/ul><\/nav><\/div>\n\t<section class=\"section\" id=\"section_1150122938\">\n\t\t<div class=\"bg section-bg fill bg-fill  bg-loaded\" >\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t<div class=\"section-content relative\">\n\t\t\t\n    <div class=\"box has-hover has-hover box-text-bottom\" >\n\n                  <div class=\"box-image\" style=\"width:25%;\">\n           <div class=\"box-image-inner image-cover\" style=\"border-radius:100%;padding-top:100%;\">\n              <img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"620\" src=\"https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang.jpg\" class=\"attachment- size-\" alt=\"seming jim jiang\" srcset=\"https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang.jpg 620w, https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang-100x100.jpg 100w, https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang-510x510.jpg 510w, https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang-300x300.jpg 300w, https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang-150x150.jpg 150w, https:\/\/seminglight.com\/wp-content\/uploads\/2025\/07\/seming-jim-jiang-12x12.jpg 12w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/>                         <\/div>\n          <\/div>\n         \n          <div class=\"box-text text-center\" >\n                <div class=\"box-text-inner\">\n                  <h4 class=\"uppercase\">\n                    <span class=\"person-name\">\u00c0 propos de l'auteur : Jim Jiang<\/span><br\/>\n                    <span class=\"person-title is-small thin-font op-7\">\n                      Fondateur de Seming, concepteur en chef de produits avec 20 ans d'exp\u00e9rience.                    <\/span>\n                  <\/h4>\n\t\t\t\t\t<div class=\"social-icons follow-icons\" ><a href=\"https:\/\/www.instagram.com\/seming.ringlight?igsh=Mmh3a2o1aGZiaWtz\" target=\"_blank\" data-label=\"Instagram\" class=\"icon button circle is-outline instagram tooltip\" title=\"Nous suivre sur Instagram\" aria-label=\"Nous suivre sur Instagram\" rel=\"noopener nofollow\" ><i class=\"icon-instagram\" ><\/i><\/a><a href=\"https:\/\/www.linkedin.com\/in\/semingledlights\/\" data-label=\"LinkedIn\" target=\"_blank\" class=\"icon button circle is-outline linkedin tooltip\" title=\"Nous suivre sur LinkedIn\" aria-label=\"Nous suivre sur LinkedIn\" rel=\"noopener nofollow\" ><i class=\"icon-linkedin\" ><\/i><\/a><a href=\"https:\/\/www.youtube.com\/@semingelectronic7269\" data-label=\"YouTube\" target=\"_blank\" class=\"icon button circle is-outline youtube tooltip\" title=\"Nous suivre sur Youtube\" aria-label=\"Nous suivre sur Youtube\" rel=\"noopener nofollow\" ><i class=\"icon-youtube\" ><\/i><\/a><\/div>\n<p>Sp\u00e9cialis\u00e9e dans la personnalisation, l'innovation et les solutions d'\u00e9clairage pour la photographie, l'\u00e9clairage de beaut\u00e9 et les outils de beaut\u00e9, et plus encore.<\/p>\n                <\/div>\n          <\/div>\n    <\/div>\n\n\t\n    \n\t\t<\/div>\n\n\t\t\n<style>\n#section_1150122938 {\n  padding-top: 30px;\n  padding-bottom: 30px;\n}\n<\/style>\n\t<\/section>\n\t\n<p>Les DEL occupent d\u00e9sormais une place importante sur le march\u00e9 de l'\u00e9clairage. Leur luminosit\u00e9 \u00e9lev\u00e9e, leur faible consommation d'\u00e9nergie, leur longue dur\u00e9e de vie, leur d\u00e9marrage rapide, leur faible consommation d'\u00e9nergie, leur absence de stroboscopie et leur moindre tendance \u00e0 la fatigue visuelle en font un facteur important pour les consommateurs. Dans l'industrie des pilotes de LED, l'isolation et la non-isolation sont probablement les deux termes les plus couramment entendus. Mais de quoi s'agit-il ? Comment les distinguer rapidement ?<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Bottom_side_circuit\"><\/span><strong>Circuit inf\u00e9rieur<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vous pouvez distinguer les circuits isol\u00e9s et non isol\u00e9s en voyant le circuit de la face inf\u00e9rieure d'un seul coup d'\u0153il ! Pour les drivers de LED isol\u00e9s, il n'y a pas de circuit en dessous des transformateurs sur la face inf\u00e9rieure, parce que le c\u00f4t\u00e9 entr\u00e9e et le c\u00f4t\u00e9 sortie sont isol\u00e9s. Vous pouvez consulter les images suivantes.<\/p>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1150171905\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"597\" height=\"251\" src=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/isolated-and-non-isolated-driver.jpg\" class=\"attachment-large size-large\" alt=\"conducteur isol\u00e9 et non isol\u00e9\" srcset=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/isolated-and-non-isolated-driver.jpg 597w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/isolated-and-non-isolated-driver-510x214.jpg 510w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/isolated-and-non-isolated-driver-300x126.jpg 300w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/isolated-and-non-isolated-driver-18x8.jpg 18w\" sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1150171905 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h2><span class=\"ez-toc-section\" id=\"What_are_the_differences_between_them\"><\/span>Quelles sont les diff\u00e9rences entre eux ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_316575991\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"615\" height=\"219\" src=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/feature-of-isolated-and-non-isolated.png\" class=\"attachment-large size-large\" alt=\"caract\u00e9ristiques de l&#039;isolement et du non-isolement\" srcset=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/feature-of-isolated-and-non-isolated.png 615w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/feature-of-isolated-and-non-isolated-510x182.png 510w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/feature-of-isolated-and-non-isolated-300x107.png 300w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/feature-of-isolated-and-non-isolated-18x6.png 18w\" sizes=\"auto, (max-width: 615px) 100vw, 615px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_316575991 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h2><span class=\"ez-toc-section\" id=\"Isolation\"><\/span>L'isolement<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L'isolation en termes de convertisseurs DC\/DC se r\u00e9f\u00e8re \u00e0 l'isolation galvanique, ce qui signifie qu'il n'y a pas de chemin de conduction m\u00e9tallique \/ direct entre deux parties du circuit. L'isolation pr\u00e9sente toujours une barri\u00e8re entre l'\u00e9tage d'entr\u00e9e et l'\u00e9tage de sortie et peut \u00eatre n\u00e9cessaire pour la fonctionnalit\u00e9 du circuit, la s\u00e9curit\u00e9 ou les deux. Le processus de conversion du transformateur est : \u00e9lectrique-magn\u00e9tique-\u00e9lectrique, il n'est pas reli\u00e9 \u00e0 la terre, il n'y a donc pas de risque d'\u00e9lectrocution.<\/p>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_1711553831\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"501\" height=\"196\" src=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-Isolation.jpg\" class=\"attachment-large size-large\" alt=\"th\u00e9orie de l&#039;isolement\" srcset=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-Isolation.jpg 501w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-Isolation-300x117.jpg 300w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-Isolation-18x7.jpg 18w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_1711553831 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h2><span class=\"ez-toc-section\" id=\"Why_Use_an_Isolated_Power_Supply\"><\/span>Pourquoi utiliser une alimentation isol\u00e9e ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Les blocs d'alimentation isol\u00e9s sont un \u00e9l\u00e9ment cl\u00e9 du contr\u00f4le du transfert de grandes quantit\u00e9s d'\u00e9nergie et de la cr\u00e9ation d'une \u00e9lectronique sans danger pour le contact humain. Vous pouvez utiliser une alimentation isol\u00e9e pour :<\/p>\n<p class=\"translation-block\"><strong>Simplifier la conception et l'utilisation:<\/strong> De nombreux appareils, tels que les ordinateurs et les t\u00e9l\u00e9viseurs, comportent des composants sensibles qui b\u00e9n\u00e9ficient d'un flux d'\u00e9nergie mieux contr\u00f4l\u00e9. Bien qu'elles n\u00e9cessitent plus de composants, les alimentations isol\u00e9es peuvent aider les concepteurs et les ing\u00e9nieurs \u00e0 r\u00e9pondre facilement \u00e0 ces demandes de courants contr\u00f4l\u00e9s. Elles peuvent \u00e9galement simplifier l'utilisation du produit final en \u00e9liminant les besoins de formation sp\u00e9ciale.<\/p>\n<p class=\"translation-block\"><strong>Conformit\u00e9 aux r\u00e9glementations et normes de s\u00e9curit\u00e9\u00a0:\u00a0<\/strong>les organismes gouvernementaux et industriels, tels que la Commission \u00e9lectrotechnique internationale (CEI), l'Organisation internationale de normalisation (ISO) et Underwriters Laboratories (UL), exigent souvent l'isolation de certains produits. Ces r\u00e9glementations peuvent d\u00e9finir certains types ou niveaux d'isolation en fonction du risque et du type de produit.<\/p>\n<p class=\"translation-block\"><strong>Rupture des boucles de terre\u00a0:<\/strong>les boucles de terre se forment lorsque deux appareils se connectent entre eux et \u00e0 la terre par des chemins diff\u00e9rents. Elles peuvent perturber le flux de courant et cr\u00e9er du bruit ou des interf\u00e9rences. L'isolation peut rompre ces boucles et est souvent utilis\u00e9e pour les circuits sensibles au bruit.<\/p>\n<p class=\"translation-block\"><strong>Cr\u00e9ation d'une sortie flottante\u00a0:<\/strong>\u00a0les sorties flottantes ne sont pas reli\u00e9es \u00e0 la terre et ne font pas r\u00e9f\u00e9rence \u00e0 une autre sortie. De nombreux produits utilisent des sorties flottantes pour plus de s\u00e9curit\u00e9. D'autres, comme les avions, ont besoin de sorties flottantes car une connexion \u00e0 la terre est impossible. En connectant une borne \u00e0 un autre n\u0153ud de circuit pour le fixer \u00e0 cette tension, les sorties flottantes peuvent \u00e9galement inverser ou d\u00e9caler la sortie le long du circuit.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Non-isolated\"><\/span>Non isol\u00e9e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>En g\u00e9n\u00e9ral, les convertisseurs non isol\u00e9s sont moins flexibles \u00e0 utiliser que leurs cousins \u200b\u200bisol\u00e9s. La principale diff\u00e9rence est qu'un convertisseur non isol\u00e9 n'a pas de transformateur et ne n\u00e9cessite aucune s\u00e9paration physique entre l'entr\u00e9e et la sortie, ce qui les rend g\u00e9n\u00e9ralement plus petits et plus l\u00e9gers. Cela am\u00e9liore \u00e9galement l'efficacit\u00e9 car il n'y a pas de pertes de transformateur \u00e0 prendre en compte. Cette r\u00e9duction de la nomenclature signifie que les convertisseurs non isol\u00e9s ont tendance \u00e0 \u00eatre moins co\u00fbteux. Le circuit non isol\u00e9 est directement ajout\u00e9 \u00e0 la charge LED apr\u00e8s l'application de la puissance d'entr\u00e9e via le buck-boost, et il existe un risque de choc \u00e9lectrique.<\/p>\n\t<div class=\"img has-hover x md-x lg-x y md-y lg-y\" id=\"image_2016866426\">\n\t\t\t\t\t\t\t\t<div class=\"img-inner dark\" >\n\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"257\" src=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-non-isolation.jpg\" class=\"attachment-large size-large\" alt=\"th\u00e9orie de la non-isolation\" srcset=\"https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-non-isolation.jpg 499w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-non-isolation-300x155.jpg 300w, https:\/\/seminglight.com\/wp-content\/uploads\/2024\/11\/theory-of-non-isolation-18x9.jpg 18w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/>\t\t\t\t\t\t\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n<style>\n#image_2016866426 {\n  width: 100%;\n}\n<\/style>\n\t<\/div>\n\t\n<h2><span class=\"ez-toc-section\" id=\"Why_Use_a_Non-Isolated_Power_Supply\"><\/span>Pourquoi utiliser une alimentation non isol\u00e9e ?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p class=\"translation-block\">Bien qu'elles ne disposent pas des caract\u00e9ristiques de s\u00e9curit\u00e9 d'une alimentation isol\u00e9e, les alimentations non isol\u00e9es offrent d'autres avantages, notamment en termes de vitesse et de conception. Lorsqu'elles sont mont\u00e9es sur une carte \u00e0 proximit\u00e9 de la charge, elles peuvent \u00eatre appel\u00e9es\u00a0<a href=\"https:\/\/www.powerelectronictips.com\/what-are-point-of-load-converters-faq\/\" target=\"_self\">alimentations \u00e0 point de charge<\/a>, qui aident \u00e0 r\u00e9duire les tensions entrantes \u00e9lev\u00e9es \u00e0 des tensions plus faibles. Placer une alimentation non isol\u00e9e en aval d'une alimentation isol\u00e9e peut aider \u00e0 att\u00e9nuer certains probl\u00e8mes de s\u00e9curit\u00e9.<\/p>\n<p>Puisqu'elles ne n\u00e9cessitent pas les composants suppl\u00e9mentaires d'une alimentation isol\u00e9e, les unit\u00e9s non isol\u00e9es peuvent offrir\u00a0:<\/p>\n<p class=\"translation-block\"><strong>Conceptions plus compactes<\/strong>\u00a0:\u00a0les syst\u00e8mes non isol\u00e9s n'ont pas besoin de composants tels que des transformateurs et des optocoupleurs, ce qui permet aux concepteurs de cr\u00e9er des alimentations plus petites. Ils peuvent \u00eatre n\u00e9cessaires lorsque l\u2019espace est restreint. Les alimentations non isol\u00e9es ont \u00e9galement tendance \u00e0 offrir des fr\u00e9quences de commutation plus \u00e9lev\u00e9es, ce qui peut rendre certaines pi\u00e8ces, comme les condensateurs et les composants magn\u00e9tiques, plus petites, r\u00e9duisant ainsi davantage la taille de l'unit\u00e9.<\/p>\n<p class=\"translation-block\"><strong>\u00c9conomies de co\u00fbts<\/strong>\u00a0: sans ces composants suppl\u00e9mentaires, une alimentation non isol\u00e9e peut \u00eatre plus abordable. Une raison importante de la baisse des co\u00fbts vient du remplacement d\u2019un transformateur par un inducteur. Les transformateurs doivent souvent \u00eatre fabriqu\u00e9s sur mesure, tandis que les inducteurs sont plus faciles \u00e0 acheter dans le commerce. Des niveaux \u00e9lev\u00e9s d'isolation peuvent \u00e9galement augmenter les co\u00fbts d'une alimentation \u00e9lectrique isol\u00e9e, dont les unit\u00e9s non isol\u00e9es n'ont pas besoin.<\/p>\n<p class=\"translation-block\"><strong>Fonctionnement plus efficace<\/strong>\u00a0: les alimentations non isol\u00e9es pr\u00e9sentent \u00e9galement un avantage en termes d'efficacit\u00e9. L'absence de barri\u00e8res d'isolation permet un contr\u00f4le et une surveillance directs de la sortie, ce qui permet de meilleures performances et r\u00e9gulations. De plus, comme elles sont plus petites, les alimentations non isol\u00e9es peuvent \u00eatre plac\u00e9es plus pr\u00e8s de la charge, ce qui contribue \u00e0 minimiser les effets n\u00e9gatifs sur la ligne de transmission.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Summary\"><\/span>R\u00e9sum\u00e9<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>L'isolation est une fonctionnalit\u00e9 tr\u00e8s utile dans les solutions d'alimentation car elle est capable de garantir un fonctionnement s\u00fbr, de r\u00e9duire les boucles de bruit\/terre et de permettre une flexibilit\u00e9 dans la configuration des rails de tension les uns par rapport aux autres.<\/p>\n<p>Cependant, lorsque des convertisseurs non isol\u00e9s peuvent \u00eatre utilis\u00e9s, les concepteurs peuvent profiter d'une taille plus petite, d'une densit\u00e9 de puissance plus \u00e9lev\u00e9e, d'une meilleure efficacit\u00e9 et de co\u00fbts inf\u00e9rieurs.<\/p>\n<p class=\"translation-block\"><strong>M\u00eame si les drivers isol\u00e9s sont plus chers et moins efficaces, ils sont plus s\u00fbrs et plus fiables. C'est pourquoi <a href=\"https:\/\/seminglight.com\/fr\/\" target=\"_self\">Seming<\/a> utilise toujours des drivers isol\u00e9s dans ses lampes.<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>LEDs now is important in the lighting market. Their high brightness, low power consumption, long life, fast start-up, low power, no stroboscopic, and less prone to visual fatigue make them an important factor for consumers. In the LED driver industry, isolation and non-isolation are probably the two most commonly heard terms. So what are they? [&#8230;]\n","protected":false},"author":1,"featured_media":2053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[63],"tags":[],"class_list":["post-2051","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-guides-for-lamps"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The difference between isolated and non-isolated power supply - Seming<\/title>\n<meta name=\"description\" content=\"In the LED driver industry, isolation and non-isolation are probably the two most commonly heard terms. 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