{"id":1643,"date":"2024-12-27T02:32:04","date_gmt":"2024-12-27T02:32:04","guid":{"rendered":"https:\/\/rf-capacitor.com\/?post_type=product&#038;p=1643"},"modified":"2024-12-27T02:40:52","modified_gmt":"2024-12-27T02:40:52","slug":"dc-bias-capacitor","status":"publish","type":"product","link":"https:\/\/rf-capacitor.com\/fr\/dc-bias-capacitor\/","title":{"rendered":"Condensateur de polarisation DC"},"content":{"rendered":"<p data-sourcepos=\"1:1-1:155\"><span class=\"citation-0 recitation\">A <\/span><strong><span class=\"citation-0 recitation\">Condensateur de polarisation DC<\/span><\/strong><span class=\"citation-0 recitation citation-end-0\"> est un condensateur utilis\u00e9 dans les circuits \u00e9lectroniques pour bloquer le flux de courant continu tout en permettant aux signaux alternatifs de passer.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span><\/p>\n<h3 data-sourcepos=\"3:1-3:23\"><strong>En voici la r\u00e9partition :<\/strong><\/h3>\n<ul data-sourcepos=\"5:1-9:0\">\n<li data-sourcepos=\"5:1-6:225\"><strong>Blocage du DC :<\/strong>\n<ul data-sourcepos=\"6:5-6:225\">\n<li data-sourcepos=\"6:5-6:225\"><span class=\"citation-1 recitation citation-end-1\">Les condensateurs stockent la charge \u00e9lectrique.<\/span> Lorsqu'une tension continue est appliqu\u00e9e, le condensateur se charge jusqu'\u00e0 cette tension, puis cesse de conduire. Cela emp\u00eache effectivement le courant continu de circuler dans le circuit.\n<div class=\"container ng-tns-c362440147-43 hide\">\n<div class=\"carousel-container ng-tns-c362440147-43\"><\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<li data-sourcepos=\"7:1-9:0\"><strong>Passing AC :<\/strong>\n<ul data-sourcepos=\"8:5-9:0\">\n<li data-sourcepos=\"8:5-9:0\"><span class=\"citation-2 recitation citation-end-2\">Les signaux \u00e0 courant alternatif, par d\u00e9finition, ont des tensions qui changent constamment.<\/span> Le condensateur se charge et se d\u00e9charge continuellement, ce qui permet au signal alternatif de passer.<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span>\n<div class=\"container ng-tns-c362440147-44 hide\">\n<div class=\"carousel-container ng-tns-c362440147-44\">\n<div class=\"carousel-content ng-tns-c362440147-44\">\n<div class=\"sources-carousel-source ng-tns-c362440147-44 hide ng-star-inserted\" data-test-id=\"sources-carousel-source\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 data-sourcepos=\"10:1-10:24\"><strong>Applications courantes :<\/strong><\/h3>\n<ul data-sourcepos=\"12:1-18:0\">\n<li data-sourcepos=\"12:1-13:165\"><strong>Couplage des signaux AC :<\/strong>\n<ul data-sourcepos=\"13:5-13:165\">\n<li data-sourcepos=\"13:5-13:165\"><span class=\"citation-3 recitation citation-end-3\">Les condensateurs de polarisation continue sont souvent utilis\u00e9s pour coupler des signaux alternatifs entre diff\u00e9rents \u00e9tages d'un amplificateur tout en isolant la tension de polarisation continue de chaque \u00e9tage.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span>\n<div class=\"container ng-tns-c362440147-45 hide\">\n<div class=\"carousel-container ng-tns-c362440147-45\">\n<div class=\"carousel-content ng-tns-c362440147-45\">\n<div class=\"sources-carousel-source ng-tns-c362440147-45 hide ng-star-inserted\" data-test-id=\"sources-carousel-source\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<li data-sourcepos=\"14:1-15:116\"><strong>Suppression des d\u00e9calages de DC :<\/strong>\n<ul data-sourcepos=\"15:5-15:116\">\n<li data-sourcepos=\"15:5-15:116\">Ils peuvent \u00eatre utilis\u00e9s pour \u00e9liminer tout d\u00e9calage en courant continu pr\u00e9sent dans un signal CA avant qu'il ne soit trait\u00e9 par un \u00e9tage ult\u00e9rieur.<\/li>\n<\/ul>\n<\/li>\n<li data-sourcepos=\"16:1-18:0\"><strong>Filtres passe-haut :<\/strong>\n<ul data-sourcepos=\"17:5-18:0\">\n<li data-sourcepos=\"17:5-18:0\"><span class=\"citation-4 recitation citation-end-4\">Associ\u00e9 \u00e0 une r\u00e9sistance, un condensateur de polarisation CC peut former un simple filtre passe-haut, qui laisse passer les signaux \u00e0 haute fr\u00e9quence tout en bloquant les signaux \u00e0 basse fr\u00e9quence, y compris le courant continu.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span>\n<div class=\"container ng-tns-c362440147-46 hide\">\n<div class=\"carousel-container ng-tns-c362440147-46\">\n<div class=\"carousel-content ng-tns-c362440147-46\">\n<div class=\"sources-carousel-source ng-tns-c362440147-46 hide ng-star-inserted\" data-test-id=\"sources-carousel-source\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 data-sourcepos=\"19:1-19:23\"><strong>Consid\u00e9rations cl\u00e9s :<\/strong><\/h3>\n<ul data-sourcepos=\"21:1-24:0\">\n<li data-sourcepos=\"21:1-21:172\"><strong>Valeur de la capacit\u00e9 :<\/strong> La valeur de la capacit\u00e9 du condensateur de polarisation en courant continu est cruciale pour ses performances. Une capacit\u00e9 plus \u00e9lev\u00e9e permet g\u00e9n\u00e9ralement de laisser passer des fr\u00e9quences plus basses.<\/li>\n<li data-sourcepos=\"22:1-22:105\"><strong>Tension nominale :<\/strong> Le condensateur doit \u00eatre dimensionn\u00e9 pour la tension maximale qui lui sera appliqu\u00e9e.<\/li>\n<li data-sourcepos=\"23:1-24:0\"><strong>Courant de fuite :<\/strong> Le courant de fuite du condensateur peut affecter le point de polarisation en courant continu du circuit.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"25:1-25:15\"><strong>En r\u00e9sum\u00e9 :<\/strong><\/h3>\n<p data-sourcepos=\"27:1-27:252\">Les condensateurs de polarisation CC jouent un r\u00f4le essentiel dans de nombreux circuits \u00e9lectroniques, permettant le transfert efficace de signaux CA tout en isolant les composants CC. En comprenant leur fonction et leurs caract\u00e9ristiques, les ing\u00e9nieurs peuvent les utiliser efficacement dans leurs conceptions.<\/p>","protected":false},"excerpt":{"rendered":"<table style=\"height: 575px;\" width=\"683\">\n<tbody>\n<tr>\n<td width=\"146\"><strong><b>Produit<\/b><\/strong>\u00a0<strong><b>Nom :<\/b><\/strong><\/td>\n<td width=\"601\">Condensateur de polarisation DC<\/td>\n<\/tr>\n<tr>\n<td width=\"146\">\n<h4><strong>Description succincte :<\/strong><\/h4>\n<\/td>\n<td width=\"601\">Convertisseur Pv, convertisseur d'\u00e9nergie \u00e9olienne;AII types de convertisseurs de fr\u00e9quence et d'onduleurs<br \/>\nalimentation \u00e9lectrique ; voitures purement \u00e9lectriques et hybrides ; pile de recharge, UPS, etc.<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Plage de capacit\u00e9 :<\/strong><\/td>\n<td width=\"601\">\u00a01\u03bcF - 200\u03bcF<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Tension nominale\uff1a<\/strong><\/td>\n<td width=\"601\">450V.DC - 1800V.DC<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Cap.tol\uff1a<\/strong><\/td>\n<td width=\"601\">\u00a0\u00b15%\uff08J\uff09\uff1b\u00b110%\uff08K\uff09<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Mod\u00e8le de condensateur :\u00a0<\/strong><\/td>\n<td width=\"601\">S\u00e9rie DMJ-PS<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"featured_media":1644,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[38],"product_tag":[],"class_list":{"0":"post-1643","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-dc-capacitor-2","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product\/1643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/comments?post=1643"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/media\/1644"}],"wp:attachment":[{"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/media?parent=1643"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product_brand?post=1643"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product_cat?post=1643"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product_tag?post=1643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}