{"id":1851,"date":"2025-01-02T01:51:17","date_gmt":"2025-01-02T01:51:17","guid":{"rendered":"https:\/\/rf-capacitor.com\/?post_type=product&#038;p=1851"},"modified":"2025-01-02T01:51:17","modified_gmt":"2025-01-02T01:51:17","slug":"igbt-snubber-capacitors","status":"publish","type":"product","link":"https:\/\/rf-capacitor.com\/fi\/igbt-snubber-capacitors\/","title":{"rendered":"IGBT:n vaimennuskondensaattorit"},"content":{"rendered":"<h3 data-sourcepos=\"1:1-1:27\"><strong>IGBT:n vaimennuskondensaattorit<\/strong><\/h3>\n<p data-sourcepos=\"3:1-3:196\"><span class=\"citation-0 recitation citation-end-0\">Tehoelektroniikassa IGBT:t\u00e4 (Insulated Gate Bipolar Transistors) k\u00e4ytet\u00e4\u00e4n laajalti kytkent\u00e4sovelluksissa.<\/span> Niiden nopeat kytkent\u00e4nopeudet voivat kuitenkin johtaa seuraavanlaisiin ei-toivottuihin vaikutuksiin:<span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0 \u00a0<\/span><\/p>\n<ul data-sourcepos=\"5:1-7:0\">\n<li data-sourcepos=\"5:1-5:148\"><strong><span class=\"citation-1 recitation\">Korkea dv\/dt (j\u00e4nnitteen muutosnopeus):<\/span><\/strong><span class=\"citation-1 recitation citation-end-1\"> T\u00e4m\u00e4 voi aiheuttaa liiallisia j\u00e4nnitepiikkej\u00e4 IGBT:n yli, mik\u00e4 saattaa vahingoittaa laitetta.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-20 hide\">\n<div class=\"carousel-container ng-tns-c362440147-20\"><\/div>\n<\/div>\n<\/li>\n<li data-sourcepos=\"6:1-7:0\"><strong><span class=\"citation-2 recitation\">Korkea di\/dt (virran muutosnopeus):<\/span><\/strong><span class=\"citation-2 recitation citation-end-2\"> T\u00e4m\u00e4 voi aiheuttaa s\u00e4hk\u00f6magneettisia h\u00e4iri\u00f6it\u00e4 (EMI) ja rasittaa siihen liittyvi\u00e4 virtapiirej\u00e4.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0 \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-21 hide\">\n<div class=\"carousel-container ng-tns-c362440147-21\"><\/div>\n<\/div>\n<\/li>\n<\/ul>\n<h3 data-sourcepos=\"8:1-8:20\"><strong>Snubber-piirit<\/strong><\/h3>\n<p data-sourcepos=\"10:1-10:143\"><span class=\"citation-3 recitation citation-end-3\">N\u00e4iden ongelmien lievent\u00e4miseksi k\u00e4ytet\u00e4\u00e4n snubber-piirej\u00e4.<\/span> <span class=\"citation-4 recitation citation-end-4\">N\u00e4iden piirien keskeinen komponentti on vaimennuskondensaattori.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span><\/p>\n<h3 data-sourcepos=\"12:1-12:31\"><strong>Miten IGBT-snubber-kondensaattorit toimivat?<\/strong><\/h3>\n<ul data-sourcepos=\"14:1-16:0\">\n<li data-sourcepos=\"14:1-14:252\"><strong>J\u00e4nnitepiikit:<\/strong> Kun IGBT kytkeytyy pois p\u00e4\u00e4lt\u00e4, piirin loisinduktanssi voi aiheuttaa nopean j\u00e4nnitteen nousun laitteen yli. <span class=\"citation-5 recitation citation-end-5\">Snubber-kondensaattori absorboi t\u00e4m\u00e4n \u00e4killisen j\u00e4nnitepiikin ja rajoittaa IGBT:n yli tulevaa huippuj\u00e4nnitett\u00e4.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-23 hide\">\n<div class=\"carousel-container ng-tns-c362440147-23\"><\/div>\n<\/div>\n<\/li>\n<li data-sourcepos=\"15:1-16:0\"><strong>Nykyinen kytkent\u00e4:<\/strong> <span class=\"citation-6 recitation citation-end-6\">Sammutuksen aikana snubber-kondensaattori tarjoaa virran kulkureitin tilap\u00e4isesti, mik\u00e4 pienent\u00e4\u00e4 di\/dt:t\u00e4 ja minimoi s\u00e4hk\u00f6magneettisen h\u00e4iri\u00f6n.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0 \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-24 hide\">\n<div class=\"carousel-container ng-tns-c362440147-24\"><\/div>\n<\/div>\n<\/li>\n<\/ul>\n<h3 data-sourcepos=\"17:1-17:45\"><strong>IGBT-varokekondensaattoreiden t\u00e4rkeimm\u00e4t ominaisuudet<\/strong><\/h3>\n<ul data-sourcepos=\"19:1-23:0\">\n<li data-sourcepos=\"19:1-19:88\"><strong>Korkea j\u00e4nnite:<\/strong> Niiden on kestett\u00e4v\u00e4 kytkenn\u00e4n aikana esiintyv\u00e4t huippuj\u00e4nnitteet.<\/li>\n<li data-sourcepos=\"20:1-20:104\"><strong><span class=\"citation-7 recitation\">Alhainen ESR (ekvivalentti sarjavastus):<\/span><\/strong><span class=\"citation-7 recitation citation-end-7\"> Minimoi kondensaattorin energiah\u00e4vi\u00f6t.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0<\/span>\n<div class=\"container ng-tns-c362440147-25 hide\">\n<div class=\"carousel-container ng-tns-c362440147-25\"><\/div>\n<\/div>\n<\/li>\n<li data-sourcepos=\"21:1-21:110\"><strong>Pikalataus-\/purkauskyky:<\/strong> Pystyy nopeasti imem\u00e4\u00e4n ja vapauttamaan energiaa vaihtotapahtumien aikana.<\/li>\n<li data-sourcepos=\"22:1-23:0\"><strong>Kompakti koko:<\/strong> Minimoidaan tehoelektroniikkaj\u00e4rjestelmien tilantarve.<\/li>\n<\/ul>\n<h3 data-sourcepos=\"24:1-24:31\"><strong>IGBT-varokekondensaattorien tyypit<\/strong><\/h3>\n<ul data-sourcepos=\"26:1-28:0\">\n<li data-sourcepos=\"26:1-26:112\"><strong>Kalvokondensaattorit:<\/strong> K\u00e4ytet\u00e4\u00e4n yleisesti niiden korkean j\u00e4nnitteen, alhaisen ESR:n ja hyv\u00e4n l\u00e4mp\u00f6tilavakavuuden ansiosta.<\/li>\n<li data-sourcepos=\"27:1-28:0\"><strong><span class=\"citation-8 recitation\">Keraamiset kondensaattorit:<\/span><\/strong><span class=\"citation-8 recitation citation-end-8\"> Tarjoavat suuren kapasitanssin pieness\u00e4 pakkauksessa, mutta niill\u00e4 voi olla rajoituksia j\u00e4nnitteen ja l\u00e4mp\u00f6tilan vakauden suhteen.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\">\u00a0 \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-26 hide\">\n<div class=\"carousel-container ng-tns-c362440147-26\"><\/div>\n<\/div>\n<\/li>\n<\/ul>\n<h3 data-sourcepos=\"29:1-29:25\"><strong>Suunnittelua koskevat n\u00e4k\u00f6kohdat<\/strong><\/h3>\n<p data-sourcepos=\"31:1-31:80\">Snubber-kondensaattoreiden valintaan ja suunnitteluun kuuluu seuraavien seikkojen huolellinen huomioon ottaminen:<\/p>\n<ul data-sourcepos=\"33:1-36:0\">\n<li data-sourcepos=\"33:1-33:85\"><strong>IGBT:n kytkent\u00e4ominaisuudet:<\/strong> Kytkeytymis- ja sammumisajat, huippuvirrat ja j\u00e4nnitteet.<\/li>\n<li data-sourcepos=\"34:1-34:69\"><strong>Piirin parametrit:<\/strong> Loisinduktanssi, kuormitusominaisuudet.<\/li>\n<li data-sourcepos=\"35:1-36:0\"><strong><span class=\"citation-9 recitation\">Snubber-piirin topologia:<\/span><\/strong><span class=\"citation-9 recitation citation-end-9\"> Eri snubberikokoonpanoilla (R-C, RCD) on erilainen vaikutus piirin suorituskykyyn.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-27 hide\">\n<div class=\"carousel-container ng-tns-c362440147-27\"><\/div>\n<\/div>\n<\/li>\n<\/ul>\n<h3 data-sourcepos=\"37:1-37:40\"><strong>Snubber-kondensaattoreiden k\u00e4yt\u00f6n edut<\/strong><\/h3>\n<ul data-sourcepos=\"39:1-42:0\">\n<li data-sourcepos=\"39:1-39:90\"><strong>Parannettu IGBT:n luotettavuus:<\/strong> V\u00e4hent\u00e4\u00e4 laitteeseen kohdistuvaa rasitusta, mik\u00e4 pident\u00e4\u00e4 laitteen k\u00e4ytt\u00f6ik\u00e4\u00e4.<\/li>\n<li data-sourcepos=\"40:1-40:68\"><strong>V\u00e4hennetyt EMI-p\u00e4\u00e4st\u00f6t:<\/strong> Minimoi s\u00e4hk\u00f6magneettiset h\u00e4iri\u00f6t.<\/li>\n<li data-sourcepos=\"41:1-42:0\"><strong><span class=\"citation-10 recitation\">Parempi j\u00e4rjestelm\u00e4n tehokkuus:<\/span><\/strong><span class=\"citation-10 recitation citation-end-10\"> Pienemm\u00e4t tehoh\u00e4vi\u00f6t pienempien kytkent\u00e4h\u00e4vi\u00f6iden ansiosta.<\/span><span class=\"button-container hide-from-message-actions ng-star-inserted\"> \u00a0<\/span>\n<div class=\"container ng-tns-c362440147-28 hide\">\n<div class=\"carousel-container ng-tns-c362440147-28\"><\/div>\n<\/div>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<table style=\"height: 429px;\" width=\"689\">\n<tbody>\n<tr>\n<td width=\"146\"><strong><b>Tuote<\/b><\/strong>\u00a0<strong><b>Nimi:<\/b><\/strong><\/td>\n<td width=\"601\">IGBT:n vaimennuskondensaattorit<\/td>\n<\/tr>\n<tr>\n<td width=\"146\">\n<h4><strong>Lyhyt kuvaus:<\/strong><\/h4>\n<\/td>\n<td width=\"601\">K\u00e4ytet\u00e4\u00e4n laajalti tehoelektroniikan elektronisissa laitteissa, kun huippuj\u00e4nnite, huippuvirran absorptiosuojaus<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Kapasitanssialue:<\/strong><\/td>\n<td width=\"601\">\u00a00.22\u03bcF~3\u03bcF<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Nimellisj\u00e4nnite\uff1a<\/strong><\/td>\n<td width=\"601\">\u00a03000V.DC~10000V.DC<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Cap.tol\uff1a<\/strong><\/td>\n<td width=\"601\">\u00a0\u00a0\u00a0\u00b15%\uff08J\uff09; \u00b110%\uff08K)<\/td>\n<\/tr>\n<tr>\n<td width=\"146\"><strong>Kondensaattorin malli:\u00a0<\/strong><\/td>\n<td width=\"601\">\u00a0SMJ-TC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"featured_media":1852,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[40],"product_tag":[],"class_list":{"0":"post-1851","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\/fi\/wp-json\/wp\/v2\/product\/1851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/comments?post=1851"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/media\/1852"}],"wp:attachment":[{"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/media?parent=1851"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/product_brand?post=1851"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/product_cat?post=1851"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/rf-capacitor.com\/fi\/wp-json\/wp\/v2\/product_tag?post=1851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}