{"id":1750,"date":"2025-09-11T10:15:49","date_gmt":"2025-09-11T10:15:49","guid":{"rendered":"https:\/\/pnlabs.ca\/shop\/protection\/"},"modified":"2026-04-16T15:57:43","modified_gmt":"2026-04-16T19:57:43","slug":"protection","status":"publish","type":"product","link":"https:\/\/pnlabs.ca\/fr\/shop\/protection\/","title":{"rendered":"Protect"},"content":{"rendered":"\t\t
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\ud83d\udcdd Aper\u00e7u<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Le Protect de PN Labs est un module de protection d\u2019alimentation CC compact et haute performance con\u00e7u pour prot\u00e9ger vos appareils \u00e9lectroniques contre les surtensions, l\u2019inversion de polarit\u00e9 et les incidents li\u00e9s \u00e0 la source d\u2019alimentation.<\/p>

Il fonctionne en se pla\u00e7ant entre votre source d\u2019alimentation et votre charge, en surveillant continuellement la tension d\u2019entr\u00e9e par rapport \u00e0 la r\u00e9f\u00e9rence r\u00e9glable et en d\u00e9connectant la sortie si des tensions dangereuses sont d\u00e9tect\u00e9es, ce qui \u00e9vite des dommages co\u00fbteux.<\/p>

En plus de la surveillance continue, la fonction de d\u00e9marrage progressif int\u00e9gr\u00e9e ajoute intentionnellement un d\u00e9lai lors de la mise sous tension, cr\u00e9ant ainsi une fen\u00eatre o\u00f9 l\u2019alimentation est amen\u00e9e \u00e0 sa valeur d\u2019\u00e9tat stable tout en \u00e9tant surveill\u00e9e. Cela signifie que si le seuil est correctement r\u00e9gl\u00e9, la sortie ne verra jamais la pleine tension appliqu\u00e9e avant d\u2019\u00eatre coup\u00e9e. <\/p>

Parfait pour les syst\u00e8mes de 5 \u00e0 30 V, Protect est id\u00e9al pour la robotique, les makers et les applications industrielles.<\/p>

Pr\u00e9sent\u00e9 dans :<\/p>

Pourquoi la protection contre les surtensions est essentielle pour votre circuit<\/a><\/p>

Circuits de protection continue contre les surtensions<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\u2705 Principales caract\u00e9ristiques<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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  • Coupure de surtension r\u00e9glable (5\u201330 V) :<\/strong>
    R\u00e9glez votre seuil de coupure en tournant le potentiom\u00e8tre int\u00e9gr\u00e9. Lorsque la tension d\u2019entr\u00e9e d\u00e9passe la limite, Protect coupe automatiquement la sortie et se r\u00e9tablit automatiquement lorsque les conditions se normalisent. Des pr\u00e9cisions typiques de 3 % ou plus sont r\u00e9alisables en fixant une r\u00e9sistance fixe \u00e0 haute tol\u00e9rance et en utilisant l\u2019\u00e9quation donn\u00e9e.<\/li>
  • Protection contre l\u2019inversion de polarit\u00e9 et le courant inverse :<\/strong>
    Agit comme une diode id\u00e9ale avec seulement une chute de tension typique de 13,5 mV<\/strong> jusqu\u2019\u00e0 14 A. Emp\u00eache les dommages caus\u00e9s par des connexions d\u2019alimentation incorrectes et prend en charge la mise en parall\u00e8le des alimentations pour la redondance (ORing).<\/li>
  • Fiabilit\u00e9 \u00e0 semi-conducteurs :<\/strong>
    Pas de relais, pas de clics. Juste un contr\u00f4le MOSFET fiable et \u00e0 action rapide. Con\u00e7u pour la long\u00e9vit\u00e9 et une haute fiabilit\u00e9 dans les applications exigeantes.<\/li>
  • Capacit\u00e9 de commutation de puissance :<\/strong>
    Utilisez un interrupteur m\u00e9canique \u00e0 faible courant pour activer\/d\u00e9sactiver les charges de forte puissance via le bornier d\u2019activation. Aucun interrupteur de forte puissance encombrant n\u2019est n\u00e9cessaire.<\/li>
  • Sortie de d\u00e9faut du microcontr\u00f4leur :<\/strong>
    La broche de d\u00e9faut \u00e0 drain ouvert passe \u00e0 l\u2019\u00e9tat BAS lors d\u2019un \u00e9v\u00e9nement de surtension, ce qui est id\u00e9al pour les diagnostics du syst\u00e8me, les alertes ou la logique d\u2019arr\u00eat.<\/li>
  • LED d’\u00e9tat double :<\/strong>
    • SAFE<\/strong> = L’alimentation circule en toute s\u00e9curit\u00e9<\/li>

    • D\u00c9FAUT<\/strong> = D\u00e9faut de surtension d\u00e9tect\u00e9 et sortie d\u00e9connect\u00e9e<\/p><\/li><\/ul><\/li>

    • Compact et montable :<\/strong>
      PCB de 60 x 42 mm avec quatre trous de montage M2. Les connecteurs XT60 facilitent l\u2019installation en ligne avec votre syst\u00e8me ou l\u2019empilement de plusieurs modules pour l\u2019ORing de puissance.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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      \u2699\ufe0f R\u00e9glage de la coupure de surtension (OVC)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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      \r\n\r\n\r\n \r\n \r\n Calculatrice simple<\/title>\r\n <style>\r\n \/* Add space between input and button *\/\r\n #inputNumber {\r\n margin-right: 10px; \/* Adjust the spacing *\/\r\n }\r\n \r\n \/* Normal button state *\/\r\n.calculator-button {\r\n background-color: #2B6FFF; \/* Button background color *\/\r\n color: #FFFFFF; \/* Text color *\/\r\n border-radius: 10px; \/* Rounded corners *\/\r\n border: none; \/* Remove default border *\/\r\n padding: 10px 20px; \/* Space inside button *\/\r\n margin-top: 10px; \/* space above the button *\/\r\n font-size: 16px; \/* Text size *\/\r\n font-weight: 500; \/* Text weight *\/\r\n cursor: pointer; \/* Pointer on hover *\/\r\n transition: background-color 0.2s, color 0.2s; \/* Smooth hover *\/\r\n}\r\n\r\n\/* Hover state *\/\r\n.calculator-button:hover {\r\n background-color: #568CFF; \/* Hover background color *\/\r\n}\r\n\r\n\/* Active (pressed) state *\/\r\n.calculator-button:active {\r\n background-color: #2B6FFF !important; \r\n color: #FFFFFF;\r\n}\r\n\r\n <\/style>\r\n <script>\r\n function calculate() {\r\n let inputNumber = parseFloat(document.getElementById(\"inputNumber\").value);\r\n let minValue = 1.0519; \/\/ Set your minimum threshold\r\n let maxValue = 10.0; \/\/ Set your maximum threshold\r\n \r\n if (!isNaN(inputNumber)) {\r\n let result = (inputNumber - 1.95) \/ 2.89;\r\n let outputText = `<strong>OVC Res:<\/strong> ${result.toFixed(4)} k\u03a9`;\r\n\r\n if (result < minValue) {\r\n outputText += \" - <strong>This overvoltage cutoff is not supported, please increase.<\/strong>\";\r\n } else if (result > maxValue) {\r\n outputText += \" - <strong>This overvoltage cutoff is not supported, please decrease.<\/strong>\";\r\n }\r\n\r\n document.getElementById(\"result\").innerHTML = outputText;\r\n } else {\r\n document.getElementById(\"result\").innerHTML = \"<strong>Please enter a valid number.<\/strong>\";\r\n }\r\n }\r\n <\/script>\r\n\r\n\r\n <h4>Calculateur de r\u00e9sistance de surtension (r\u00e9sistance OVC)<\/h4>\r\n <label for=\"inputNumber\">Entrez votre coupure de surtension souhait\u00e9e en volts :<\/label>\r\n <input type=\"number\" id=\"inputNumber\">\r\n <button class=\"calculator-button\" onclick=\"calculate()\">Calculer<\/button>\r\n <p id=\"result\"><\/p>\r\n\r\n\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5be9da elementor-widget elementor-widget-text-editor\" data-id=\"a5be9da\" 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 class=\"\" data-start=\"192\" data-end=\"362\">Le module Protect permet aux utilisateurs de d\u00e9finir avec pr\u00e9cision le seuil de coupure de surtension en ajustant le potentiom\u00e8tre int\u00e9gr\u00e9, qui contr\u00f4le la r\u00e9sistance \u00e9tiquet\u00e9e <strong>OVC Res<\/strong>.<\/p><h4 class=\"\" data-start=\"364\" data-end=\"389\">\ud83d\udca1 \u00c9quation de coupure<\/h4><p class=\"\" data-start=\"390\" data-end=\"457\">Pour calculer la tension de coupure souhait\u00e9e, utilisez la formule suivante :<\/p><p><strong>OVC res = (OVC – 1,95) \/ 2,89<\/strong><\/p><ul data-start=\"500\" data-end=\"602\"><li class=\"\" data-start=\"500\" data-end=\"534\"><p class=\"\" data-start=\"502\" data-end=\"534\"><strong>OVC Res<\/strong> est en kilo-ohms (k\u03a9)<\/p><\/li><li class=\"\" data-start=\"535\" data-end=\"602\"><p class=\"\" data-start=\"537\" data-end=\"602\"><strong>OVC <\/strong> est votre tension d’arr\u00eat de surtension souhait\u00e9e en volts (V)<\/p><\/li><\/ul><p class=\"\" data-start=\"604\" data-end=\"794\">Vous pouvez mesurer la r\u00e9sistance entre les points de test avec un multim\u00e8tre tout en ajustant le potentiom\u00e8tre avec un tournevis. Cela permet un contr\u00f4le pr\u00e9cis du seuil de protection. <\/p><p class=\"\" data-start=\"604\" data-end=\"794\"><strong data-start=\"798\" data-end=\"812\">Important :<\/strong> Mettez toujours le module Protect hors tension avant d’effectuer des r\u00e9glages sur la r\u00e9sistance OVC pour vous assurer que le flux de courant \u00e0 travers le multim\u00e8tre n’affecte pas sa lecture.<\/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-6a6de76 elementor-widget elementor-widget-heading\" data-id=\"6a6de76\" 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\">\ud83d\udea8 Comportement de la protection contre les surtensions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a641f0d elementor-widget elementor-widget-text-editor\" data-id=\"a641f0d\" 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 class=\"\" data-start=\"942\" data-end=\"998\">Lorsque la tension d’entr\u00e9e d\u00e9passe la limite OVC configur\u00e9e :<\/p><ul data-start=\"999\" data-end=\"1162\"><li class=\"\" data-start=\"999\" data-end=\"1063\"><p class=\"\" data-start=\"1001\" data-end=\"1063\">Le module Protect d\u00e9sactive la sortie <strong data-start=\"1040\" data-end=\"1063\">en quelques microsecondes<\/strong><\/p><\/li><li class=\"\" data-start=\"1064\" data-end=\"1101\"><p class=\"\" data-start=\"1066\" data-end=\"1101\">La LED <strong data-start=\"1070\" data-end=\"1082\">OV Fault<\/strong> s’allume<\/p><\/li><li class=\"\" data-start=\"1102\" data-end=\"1162\"><p class=\"\" data-start=\"1104\" data-end=\"1162\">La broche de signal <strong data-start=\"1108\" data-end=\"1117\">FAULT<\/strong> est tir\u00e9e vers le bas (drain ouvert vers GND)<\/p><\/li><\/ul><p class=\"\" data-start=\"1164\" data-end=\"1338\">Le module <strong data-start=\"1180\" data-end=\"1207\">r\u00e9activera automatiquement<\/strong> la sortie une fois que la tension d’entr\u00e9e descendra d’environ 0,5 \u00e0 1 V en dessous de la limite OVC, ce qui permettra une r\u00e9cup\u00e9ration transparente apr\u00e8s les pics transitoires.<\/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-1ce03ba elementor-widget elementor-widget-heading\" data-id=\"1ce03ba\" 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\">\u26a1 Comportement de la protection de mise en parall\u00e8le<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d1cffc elementor-widget elementor-widget-text-editor\" data-id=\"5d1cffc\" 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 class=\"\" data-start=\"71\" data-end=\"375\"><strong data-start=\"71\" data-end=\"96\">\u26a0\ufe0f Pourquoi auriez-vous besoin d’utiliser un module Protect au lieu de simplement vous connecter directement en parall\u00e8le ?<\/strong><\/p><p class=\"\" data-start=\"71\" data-end=\"375\">Lorsque deux sources de tension in\u00e9gales sont connect\u00e9es en parall\u00e8le, le c\u00f4t\u00e9 de tension le plus \u00e9lev\u00e9 tentera de charger le c\u00f4t\u00e9 de tension le plus bas pour les amener tous les deux au m\u00eame potentiel.<\/p><p data-start=\"71\" data-end=\"375\">Ce flux de courant incontr\u00f4l\u00e9 peut endommager les alimentations qui ne sont pas con\u00e7ues pour le supporter, car la boucle de contr\u00f4le interne essaiera maintenant de compenser ce que fait l\u2019autre alimentation. Dans le cas d\u2019une batterie, une pointe de courant non r\u00e9gul\u00e9e et potentiellement dangereuse s\u2019\u00e9coulera, qui peut \u00eatre sup\u00e9rieure au courant de charge maximal de la batterie, l\u2019endommageant ainsi par placage de lithium et contribuant \u00e0 une d\u00e9faillance pr\u00e9coce. <\/p><p class=\"\" data-start=\"71\" data-end=\"375\">Le module Protect poss\u00e8de un comparateur interne qui d\u00e9tecte la chute de tension \u00e0 travers le premier MOSFET et l’\u00e9teint en quelques microsecondes s’il y a un flux de courant inverse d\u00e9tect\u00e9, ce qui permet de prot\u00e9ger votre alimentation.<\/p><p class=\"\" data-start=\"71\" data-end=\"375\">Pour que les alimentations partagent la charge, nous avons constat\u00e9 qu’elles doivent g\u00e9n\u00e9ralement \u00eatre \u00e0 moins de 0,5 V l’une de l’autre.<\/p><p class=\"\" data-start=\"377\" data-end=\"391\">Pour faire fonctionner le module Protect en mode Parall\u00e8le :<\/p><ol data-start=\"392\" data-end=\"855\"><li class=\"\" data-start=\"392\" data-end=\"438\"><p class=\"\" data-start=\"394\" data-end=\"438\">Utilisez <strong data-start=\"398\" data-end=\"437\">un module Protect par source d’alimentation<\/strong>.<\/p><\/li><li class=\"\" data-start=\"392\" data-end=\"438\"><p class=\"\" data-start=\"394\" data-end=\"438\"><strong data-start=\"441\" data-end=\"483\">D\u00e9finissez la limite OVC (coupure de surtension)<\/strong> sur chaque module, ou <strong data-start=\"503\" data-end=\"517\">d\u00e9sactivez la limite<\/strong> en tournant la r\u00e9sistance OVC \u00e0 sa r\u00e9sistance maximale.<\/p><\/li><li class=\"\" data-start=\"568\" data-end=\"626\"><p class=\"\" data-start=\"570\" data-end=\"626\"><strong data-start=\"570\" data-end=\"599\">Connectez chaque source d’alimentation<\/strong> \u00e0 son propre module Protect.<\/p><\/li><li class=\"\" data-start=\"627\" data-end=\"719\"><p class=\"\" data-start=\"629\" data-end=\"719\"><strong data-start=\"629\" data-end=\"658\">Joignez les bornes de sortie<\/strong> de tous les modules Protect pour former la sortie combin\u00e9e.<\/p><\/li><li class=\"\" data-start=\"720\" data-end=\"855\"><p class=\"\" data-start=\"722\" data-end=\"855\"><em data-start=\"722\" data-end=\"734\">(Facultatif)<\/em> Ajoutez un interrupteur \u00e0 la borne <strong data-start=\"755\" data-end=\"765\">Enable<\/strong> sur chaque module pour activer ou d\u00e9sactiver individuellement les sources d’alimentation, comme d\u00e9crit ci-dessous.<\/p><\/li><\/ol>\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-e79d794 elementor-widget elementor-widget-heading\" data-id=\"e79d794\" 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\">\ud83d\udfe2Fonctionnement normal<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95ed7e5 elementor-widget elementor-widget-text-editor\" data-id=\"95ed7e5\" 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 class=\"\" data-start=\"1370\" data-end=\"1412\">Lors d’un fonctionnement dans les limites de tension de s\u00e9curit\u00e9 :<\/p><ul data-start=\"1413\" data-end=\"1529\"><li class=\"\" data-start=\"1413\" data-end=\"1454\"><p class=\"\" data-start=\"1415\" data-end=\"1454\">La LED <strong data-start=\"1419\" data-end=\"1427\">Safe<\/strong> (verte) est allum\u00e9e<\/p><\/li><li class=\"\" data-start=\"1455\" data-end=\"1529\"><p class=\"\" data-start=\"1457\" data-end=\"1529\">La broche de signal <strong data-start=\"1461\" data-end=\"1470\">FAULT<\/strong> est tir\u00e9e vers le haut vers Vcc (via une r\u00e9sistance pull-up interne)<\/p><\/li><\/ul>\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-4858aa7 elementor-widget elementor-widget-heading\" data-id=\"4858aa7\" 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\">\ud83d\udd0c Facultatif : fonction de commutateur haute puissance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ac14a6e elementor-widget elementor-widget-text-editor\" data-id=\"ac14a6e\" 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 class=\"\" data-start=\"1581\" data-end=\"1744\">Le module Protect peut \u00e9galement servir d’interrupteur d’alimentation principal pour votre syst\u00e8me. Connectez simplement un interrupteur <strong data-start=\"1670\" data-end=\"1705\">unipolaire unidirectionnel (SPST)<\/strong> au bornier <code data-start=\"1720\" data-end=\"1728\">Enable<\/code> : <\/p><ul data-start=\"1746\" data-end=\"1897\"><li class=\"\" data-start=\"1746\" data-end=\"1801\"><p class=\"\" data-start=\"1748\" data-end=\"1801\"><strong data-start=\"1748\" data-end=\"1763\">Interrupteur ouvert<\/strong> = Module activ\u00e9 (fonctionnement normal)<\/p><\/li><li class=\"\" data-start=\"1802\" data-end=\"1897\"><p class=\"\" data-start=\"1804\" data-end=\"1897\"><strong data-start=\"1804\" data-end=\"1821\">Interrupteur ferm\u00e9<\/strong> (connectez les points 1 et 2) = Le module passe en mode basse consommation et d\u00e9sactive la sortie<\/p><\/li><\/ul><p class=\"\" data-start=\"1899\" data-end=\"2011\">Cela vous permet de basculer la distribution d’\u00e9nergie \u00e0 courant \u00e9lev\u00e9 \u00e0 l’aide d’un interrupteur m\u00e9canique ou num\u00e9rique compact \u00e0 faible courant.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Module de coupure de surtension r\u00e9glable de 5 \u00e0 30 V avec commutateur de charge c\u00f4t\u00e9 haut. Capable de supporter 25 A en continu, le Protect de PN Labs emp\u00eache l\u2019alimentation CC mal appliqu\u00e9e de d\u00e9truire des composants de circuit co\u00fbteux ou sensibles. La conception \u00e0 semi-conducteurs assure une fiabilit\u00e9 et une efficacit\u00e9 \u00e0 long terme \u00e9lev\u00e9es. <\/p>\n<p>Il prot\u00e8ge \u00e9galement contre l\u2019inversion de polarit\u00e9 et bloque le courant inverse, ce qui vous permet de mettre en parall\u00e8le ou d\u2019isoler en toute s\u00e9curit\u00e9 plusieurs alimentations ou batteries pour la redondance.<\/p>\n","protected":false},"featured_media":1647,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[58],"product_tag":[61,60,64,63,67,62],"class_list":{"0":"post-1750","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-circuit-protection","7":"product_tag-alimentation","8":"product_tag-cc","9":"product_tag-circuit","10":"product_tag-module","11":"product_tag-protection-2","12":"product_tag-protection","14":"first","15":"instock","16":"featured","17":"shipping-taxable","18":"purchasable","19":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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