{"id":1856,"date":"2025-01-02T02:04:58","date_gmt":"2025-01-02T02:04:58","guid":{"rendered":"https:\/\/rf-capacitor.com\/?post_type=product&#038;p=1856"},"modified":"2025-01-02T02:04:58","modified_gmt":"2025-01-02T02:04:58","slug":"resonant-circuit-snubber-capacitor","status":"publish","type":"product","link":"https:\/\/rf-capacitor.com\/fr\/resonant-circuit-snubber-capacitor\/","title":{"rendered":"Circuit r\u00e9sonnant Condensateur tampon"},"content":{"rendered":"<div class=\"user-query-container ng-star-inserted\">\n<div id=\"user-query-content-1\" class=\"query-content\">\n<div class=\"query-text gds-body-l ng-star-inserted\" dir=\"ltr\" role=\"heading\" aria-level=\"2\">\n<h3 class=\"query-text-line ng-star-inserted\">Circuit r\u00e9sonnant Condensateur tampon<\/h3>\n<\/div>\n<\/div>\n<\/div>\n<div>\n<div class=\"response-container ng-tns-c3227055261-32 response-optimization tts-removed ng-star-inserted response-container-has-multiple-responses\">\n<div class=\"presented-response-container ng-tns-c3227055261-32\">\n<div class=\"response-container-content ng-tns-c3227055261-32 tunable-selection-with-avatar\">\n<div class=\"response-content ng-tns-c3227055261-32\">\n<div id=\"model-response-message-contentr_be92511bd195e395\" class=\"markdown markdown-main-panel tutor-markdown-rendering response-optimization\" dir=\"ltr\">\n<p data-sourcepos=\"1:1-1:154\">Dans les circuits snubber r\u00e9sonants, le condensateur joue un r\u00f4le crucial dans la cr\u00e9ation d'un circuit de r\u00e9servoir r\u00e9sonant avec l'inductance parasite pr\u00e9sente dans le syst\u00e8me.<\/p>\n<h3 data-sourcepos=\"3:1-3:17\"><strong>Comment fonctionne le condensateur de rappel du circuit r\u00e9sonant :<\/strong><\/h3>\n<ul data-sourcepos=\"5:1-7:0\">\n<li data-sourcepos=\"5:1-5:283\"><strong>R\u00e9sonance :<\/strong> Le condensateur et l'inductance parasite forment un circuit de r\u00e9servoir LC. Lorsque l'IGBT s'\u00e9teint, l'\u00e9nergie stock\u00e9e dans l'inductance parasite est transf\u00e9r\u00e9e au condensateur. Ce transfert d'\u00e9nergie se produit \u00e0 la fr\u00e9quence de r\u00e9sonance du r\u00e9servoir LC, ce qui entra\u00eene des oscillations.<\/li>\n<li data-sourcepos=\"6:1-7:0\"><strong>Dissipation d'\u00e9nergie :<\/strong> Une r\u00e9sistance est g\u00e9n\u00e9ralement incluse dans le circuit snubber r\u00e9sonant pour amortir ces oscillations et dissiper l'\u00e9nergie.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"8:1-8:56\"><strong>Caract\u00e9ristiques principales des condensateurs snubber r\u00e9sonants :<\/strong><\/h3>\n<ul data-sourcepos=\"10:1-13:0\">\n<li data-sourcepos=\"10:1-10:82\"><strong>Capacit\u00e9 pr\u00e9cise :<\/strong> Il est essentiel pour obtenir la fr\u00e9quence de r\u00e9sonance souhait\u00e9e.<\/li>\n<li data-sourcepos=\"11:1-11:78\"><strong><span class=\"citation-0 recitation\">Faible ESR :<\/span><\/strong><span class=\"citation-0 recitation citation-end-0\"> Minimise les pertes pendant les oscillations de r\u00e9sonance. <\/span>\n<div class=\"container ng-tns-c362440147-35\">\n<div class=\"carousel-container ng-tns-c362440147-35\">\n<div class=\"carousel-content ng-tns-c362440147-35\">\n<div class=\"sources-carousel-source ng-tns-c362440147-35 ng-star-inserted\" data-test-id=\"sources-carousel-source\">\n<div class=\"source-card-container\">\n<div class=\"source-card-content\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/li>\n<li data-sourcepos=\"12:1-13:0\"><strong>Haute tension :<\/strong> Doit r\u00e9sister aux pics de tension qui se produisent pendant la r\u00e9sonance.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"14:1-14:42\"><strong>Avantages du condensateur tampon pour circuit r\u00e9sonant :<\/strong><\/h3>\n<ul data-sourcepos=\"16:1-19:0\">\n<li data-sourcepos=\"16:1-16:158\"><strong>Pertes de commutation r\u00e9duites :<\/strong> En utilisant le transfert d'\u00e9nergie par r\u00e9sonance, les pertes de commutation peuvent \u00eatre r\u00e9duites de mani\u00e8re significative par rapport aux amortisseurs R-C traditionnels.<\/li>\n<li data-sourcepos=\"17:1-17:96\"><strong>Am\u00e9lioration de l'efficacit\u00e9 :<\/strong> Des pertes de commutation plus faibles se traduisent par une plus grande efficacit\u00e9 globale du syst\u00e8me.<\/li>\n<li data-sourcepos=\"18:1-19:0\"><strong>R\u00e9duction des interf\u00e9rences \u00e9lectromagn\u00e9tiques :<\/strong> La nature r\u00e9sonante du circuit peut contribuer \u00e0 r\u00e9duire les \u00e9missions \u00e9lectromagn\u00e9tiques.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"20:1-20:26\"><strong>Consid\u00e9rations relatives \u00e0 la conception :<\/strong><\/h3>\n<ul data-sourcepos=\"22:1-25:0\">\n<li data-sourcepos=\"22:1-22:89\"><strong>Fr\u00e9quence de r\u00e9sonance :<\/strong> Soigneusement calcul\u00e9e pour correspondre aux conditions de fonctionnement souhait\u00e9es.<\/li>\n<li data-sourcepos=\"23:1-23:117\"><strong>Facteur d'amortissement :<\/strong> La valeur de la r\u00e9sistance est choisie pour fournir un amortissement appropri\u00e9 et \u00e9viter des oscillations excessives.<\/li>\n<li data-sourcepos=\"24:1-25:0\"><strong>S\u00e9lection des composants du circuit :<\/strong> Une s\u00e9lection minutieuse des composants (condensateur, r\u00e9sistance, inducteur) est cruciale pour obtenir des performances optimales.<\/li>\n<\/ul>\n<p data-sourcepos=\"30:1-30:230\">\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<table style=\"height: 534px;\" width=\"695\">\n<tbody>\n<tr>\n<td width=\"146\"><strong><b>Produit<\/b><\/strong>\u00a0<strong><b>Nom :<\/b><\/strong><\/td>\n<td width=\"601\"><strong>Circuit r\u00e9sonnant Condensateur tampon<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"146\">\n<h4><strong>Description succincte :<\/strong><\/h4>\n<\/td>\n<td width=\"601\">Largement utilis\u00e9 dans l'\u00e9quipement \u00e9lectronique de puissance lorsque la protection contre l'absorption de la tension de cr\u00eate et du courant de cr\u00eate est n\u00e9cessaire.<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Plage de capacit\u00e9 :<\/strong><\/td>\n<td width=\"601\">0,1\u03bcF~ 5,6\u03bcF<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Tension nominale\uff1a<\/strong><\/td>\n<td width=\"601\">630V.DC ~ 2000V.DC<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Cap.tol\uff1a<\/strong><\/td>\n<td width=\"601\">\u00a0\u00a0\u00b15%(J)\uff1b\u00b110%(K)<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Mod\u00e8le de condensateur :\u00a0<\/strong><\/td>\n<td width=\"601\">Isolateur de l'IGBT<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"featured_media":1857,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[40],"product_tag":[],"class_list":{"0":"post-1856","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-snubber-capacitor","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product\/1856","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=1856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/media\/1857"}],"wp:attachment":[{"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/media?parent=1856"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product_brand?post=1856"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product_cat?post=1856"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fr\/wp-json\/wp\/v2\/product_tag?post=1856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}