{"id":6787,"date":"2020-09-23T14:28:47","date_gmt":"2020-09-23T14:28:47","guid":{"rendered":"https:\/\/www.ed-k.de\/applications\/example-8-filter-choke-with-iron-powder-core\/"},"modified":"2026-03-09T11:18:33","modified_gmt":"2026-03-09T11:18:33","slug":"example-8-filter-choke-with-iron-powder-core","status":"publish","type":"page","link":"https:\/\/www.ed-k.de\/en\/applications\/example-8-filter-choke-with-iron-powder-core\/","title":{"rendered":"Example 8: filter Choke with iron powder core"},"content":{"rendered":"<div class='clear'><\/div><div id='sub_menu1'  class='av-submenu-container av-2o7jzi-aae0975d3e2fce4afe06e760de039e21 main_color  avia-builder-el-0  el_before_av_one_full  avia-builder-el-first  av-sticky-submenu container_wrap fullsize' style='z-index:301' ><div class='container av-menu-mobile-disabled av-submenu-pos-center'><ul id=\"menu-anwendungen\" class=\"av-subnav-menu\" role=\"menu\"><li role=\"menuitem\" id=\"menu-item-2672\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-1\"><a href=\"https:\/\/www.ed-k.de\/anwendungen\/siebdrossel-mit-ferritkern-unter-temperatureinfluss\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Beispiel 1<\/span><span class=\"avia-menu-fx\"><span class=\"avia-arrow-wrap\"><span class=\"avia-arrow\"><\/span><\/span><\/span><\/a><\/li>\n<li role=\"menuitem\" id=\"menu-item-2671\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-2\"><a href=\"https:\/\/www.ed-k.de\/anwendungen\/siebdrossel-mit-ferritkern-unter-temperatureinfluss-2\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Beispiel 2<\/span><span class=\"avia-menu-fx\"><span class=\"avia-arrow-wrap\"><span class=\"avia-arrow\"><\/span><\/span><\/span><\/a><\/li>\n<li role=\"menuitem\" id=\"menu-item-2670\" class=\"menu-item 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menu-item-top-level-7\"><a href=\"https:\/\/www.ed-k.de\/anwendungen\/beispiel-7-stromkompensierte-entstoerdrossel\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Beispiel 7<\/span><span class=\"avia-menu-fx\"><span class=\"avia-arrow-wrap\"><span class=\"avia-arrow\"><\/span><\/span><\/span><\/a><\/li>\n<li role=\"menuitem\" id=\"menu-item-2665\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-8\"><a href=\"https:\/\/www.ed-k.de\/anwendungen\/beispiel-8-eisenpulverkern-drossel\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Beispiel 8<\/span><span class=\"avia-menu-fx\"><span class=\"avia-arrow-wrap\"><span class=\"avia-arrow\"><\/span><\/span><\/span><\/a><\/li>\n<\/ul><\/div><\/div><div class='sticky_placeholder'><\/div><div id='after_submenu_1'  class='main_color av_default_container_wrap container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-6787'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-28gkpy-3f31939ce148d36dc462af96c48e16a0\">\n.flex_column.av-28gkpy-3f31939ce148d36dc462af96c48e16a0{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-28gkpy-3f31939ce148d36dc462af96c48e16a0 av_one_full  avia-builder-el-1  el_after_av_submenu  el_before_av_one_full  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-7jtza-513f485c7dd882f588f364e94db25ee6\">\n#top .av-special-heading.av-7jtza-513f485c7dd882f588f364e94db25ee6{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-7jtza-513f485c7dd882f588f364e94db25ee6 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-7jtza-513f485c7dd882f588f364e94db25ee6 .av-subheading{\nfont-size:17px;\n}\n<\/style>\n<div  class='av-special-heading av-7jtza-513f485c7dd882f588f364e94db25ee6 av-special-heading-h1 blockquote modern-quote  avia-builder-el-2  el_before_av_hr  avia-builder-el-first '><h1 class='av-special-heading-tag '  itemprop=\"headline\"  >Example 8: Filter Choke with iron powder core<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1ydii6-817afd72d23aae4364afae4f96ec3b22\">\n#top .hr.hr-invisible.av-1ydii6-817afd72d23aae4364afae4f96ec3b22{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-1ydii6-817afd72d23aae4364afae4f96ec3b22 hr-invisible  avia-builder-el-3  el_after_av_heading  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-1o9lfa-bcc680ed91ed7f757185774874d4385a '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>This choke with a toroidal core made from iron powder has a rated inductance of 63 \u00b5H and a rated current of 10 A according to the datasheet. The designated use is primarily as filter choke in switch mode power supplies.<\/p>\n<p>The inductance of this exemplar is higher than the nominal inductance in the complete range. Only the small-signal measurement method results in an inductance in the magnitude of the supplier rated inductance of approximately 71 \u00b5H. The real inductance is up to 2.5 times higher. After the maximum is reached the inductance decreases. In this case the rated current shows only the thermal limit of the choke.<\/p>\n<p>This example shows very clear the differences between datasheet parameter and the real behaviour of the power inductor. The Power Choke Tester DPG10 allows these deviations to be displayed quickly and easily.<\/p>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1lgopi-b6999ee9a20d3b62f6dbffe86372d55a\">\n.flex_column.av-1lgopi-b6999ee9a20d3b62f6dbffe86372d55a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1lgopi-b6999ee9a20d3b62f6dbffe86372d55a av_one_full  avia-builder-el-5  el_after_av_one_full  el_before_av_one_full  first flex_column_div av-zero-column-padding  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1e2w1a-695922a8cc9db638cb482a554dc8df6f\">\n.avia-image-container.av-1e2w1a-695922a8cc9db638cb482a554dc8df6f img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-1e2w1a-695922a8cc9db638cb482a554dc8df6f .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-1e2w1a-695922a8cc9db638cb482a554dc8df6f av-styling- avia-align-center  avia-builder-el-6  el_before_av_textblock  avia-builder-el-first '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-1307 avia-img-lazy-loading-not-1307 avia_image ' src=\"https:\/\/www.ed-k.de\/wp-content\/uploads\/2017\/05\/example-8-report-e.png\" alt='Example 8 measurement report e' title=''  height=\"320\" width=\"670\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.ed-k.de\/wp-content\/uploads\/2017\/05\/example-8-report-e.png 670w, https:\/\/www.ed-k.de\/wp-content\/uploads\/2017\/05\/example-8-report-e-300x143.png 300w, https:\/\/www.ed-k.de\/wp-content\/uploads\/2017\/05\/example-8-report-e-450x215.png 450w\" sizes=\"(max-width: 670px) 100vw, 670px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-17tzl2-b04ccf9de744a558063626047faab22c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><a href=\"https:\/\/www.ed-k.de\/wp-content\/uploads\/2017\/05\/example-8-report-e.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Entire measurement repor<\/strong>t<\/a><\/p>\n<\/div><\/section><\/p><\/div><\/p>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-12bk2e-92d0976abe0046c08b05f3a288e4eccb\">\n.flex_column.av-12bk2e-92d0976abe0046c08b05f3a288e4eccb{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-12bk2e-92d0976abe0046c08b05f3a288e4eccb av_one_full  avia-builder-el-8  el_after_av_one_full  el_before_av_hr  first no_margin flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-xmwb2-29c0f924c99deb5b696272e207e0265c\">\n#top .hr.hr-invisible.av-xmwb2-29c0f924c99deb5b696272e207e0265c{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-xmwb2-29c0f924c99deb5b696272e207e0265c hr-invisible  avia-builder-el-9  avia-builder-el-no-sibling '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jgqn1p5w-fadd2d532601d9a3a24617996a6b9fe9\">\n#top .hr.hr-invisible.av-jgqn1p5w-fadd2d532601d9a3a24617996a6b9fe9{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-jgqn1p5w-fadd2d532601d9a3a24617996a6b9fe9 hr-invisible  avia-builder-el-10  el_after_av_one_full  el_before_av_one_fourth '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class='flex_column_table av-pg91y-07e86ee3d232d43660ca1b7add584628 sc-av_one_fourth av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-pg91y-07e86ee3d232d43660ca1b7add584628\">\n.flex_column.av-pg91y-07e86ee3d232d43660ca1b7add584628{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-pg91y-07e86ee3d232d43660ca1b7add584628 av_one_fourth  avia-builder-el-11  el_after_av_hr  el_before_av_one_half  first flex_column_table_cell av-equal-height-column av-align-top av-zero-column-padding  '     ><\/div>\n<div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-k7tvi-ff0223190ab936c1956ebb6a13c13897\">\n.flex_column.av-k7tvi-ff0223190ab936c1956ebb6a13c13897{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-k7tvi-ff0223190ab936c1956ebb6a13c13897 av_one_half  avia-builder-el-12  el_after_av_one_fourth  el_before_av_one_fourth  flex_column_table_cell av-equal-height-column av-align-top av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_textblock-511b9f441ca85ccaef0c117ebc260395\">\n#top .av_textblock_section.av-av_textblock-511b9f441ca85ccaef0c117ebc260395 .avia_textblock{\nfont-size:15px;\n}\n<\/style>\n<section  class='av_textblock_section av-av_textblock-511b9f441ca85ccaef0c117ebc260395 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><ol>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-1\/\">PFC choke with nanocrystalline core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-2\/\">Smoothing choke\u00a0with ferrite core under temperature influence<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-3\/\">Smoothing choke\u00a0with high flux core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-4\/\">Mains line choke with laminated iron core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-5\/\">VHF choke with ferrite rod core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-6\/\">3-phase choke for mains filter<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-7\/\"> Current compensated chokes<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example-8\/\">Filter choke with iron powder core<\/a><\/strong><\/li>\n<\/ol>\n<\/div><\/section><\/div><div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-b48ny-fabe9f3c4d68023707e47c9a6b9c606c\">\n.flex_column.av-b48ny-fabe9f3c4d68023707e47c9a6b9c606c{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-b48ny-fabe9f3c4d68023707e47c9a6b9c606c av_one_fourth  avia-builder-el-14  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Autoclose: 1 --><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":7872,"menu_order":8,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6787","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Example 8: filter Choke with iron powder core<\/title>\n<meta name=\"description\" content=\"Example 8: choke with a toroidal core made from iron powder - designated use is primarily as filter choke in switch mode power supplies.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ed-k.de\/en\/applications\/example-8-filter-choke-with-iron-powder-core\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Example 8: filter Choke with iron powder core\" \/>\n<meta property=\"og:description\" content=\"Example 8: choke with a toroidal core made from iron powder - 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