{"id":6775,"date":"2020-09-23T14:18:37","date_gmt":"2020-09-23T14:18:37","guid":{"rendered":"https:\/\/www.ed-k.de\/applications\/example-5-vhf-choke-with-ferrite-cylinder-core\/"},"modified":"2026-06-08T12:53:09","modified_gmt":"2026-06-08T12:53:09","slug":"example5","status":"publish","type":"page","link":"https:\/\/www.ed-k.de\/en\/applications\/example5\/","title":{"rendered":"Example 5: VHF choke with ferrite rod core"},"content":{"rendered":"<div class='clear'><\/div><div id='sub_menu1'  class='av-submenu-container av-drbh5-9ca3a3ca13dcc76a0a59fd1ff5f8b06a 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-englisch\" class=\"av-subnav-menu\" role=\"menu\"><li role=\"menuitem\" id=\"menu-item-1178\" 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\/en\/applications\/example1\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 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-7916\" 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\/en\/applications\/example2\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 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-8169\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-3\"><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example3\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 3<\/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-7954\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-4\"><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example4\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 4<\/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-6792\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-5\"><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example5\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 5<\/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-6793\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-6\"><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example6\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 6<\/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-1322\" class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-top-level menu-item-top-level-7\"><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example7\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 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-10128\" 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\/en\/applications\/example8\/\" itemprop=\"url\" tabindex=\"0\"><span class=\"avia-bullet\"><\/span><span class=\"avia-menu-text\">Example 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-6775'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3cmlsh-df1fb5ab917f969e53903efbdcf54295\">\n.flex_column.av-3cmlsh-df1fb5ab917f969e53903efbdcf54295{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-3cmlsh-df1fb5ab917f969e53903efbdcf54295 av_one_full  avia-builder-el-1  el_after_av_submenu  el_before_av_two_fifth  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-396w35-46d503708b8b01f54d6fe6ffdc5d62ae\">\n#top .av-special-heading.av-396w35-46d503708b8b01f54d6fe6ffdc5d62ae{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-396w35-46d503708b8b01f54d6fe6ffdc5d62ae .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-396w35-46d503708b8b01f54d6fe6ffdc5d62ae .av-subheading{\nfont-size:17px;\n}\n<\/style>\n<div  class='av-special-heading av-396w35-46d503708b8b01f54d6fe6ffdc5d62ae av-special-heading-h1 blockquote modern-quote  avia-builder-el-2  avia-builder-el-no-sibling '><h1 class='av-special-heading-tag '  itemprop=\"headline\"  >Example 5: VHF choke with ferrite rod core<\/h1><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-30mp6h-577d94d3120ad89461c79a25a9d39902\">\n.flex_column.av-30mp6h-577d94d3120ad89461c79a25a9d39902{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-30mp6h-577d94d3120ad89461c79a25a9d39902 av_two_fifth  avia-builder-el-3  el_after_av_one_full  el_before_av_three_fifth  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-2wr7kp-51a8d79f6210e80fc75bb4d10663557c\">\n#top .hr.hr-invisible.av-2wr7kp-51a8d79f6210e80fc75bb4d10663557c{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-2wr7kp-51a8d79f6210e80fc75bb4d10663557c hr-invisible  avia-builder-el-4  el_before_av_textblock  avia-builder-el-first '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-2sav75-49232a9090ab67296281088d432095e6 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>This diagram shows a VHF choke with ferrite rod core from the standard program of a well-known supplier. According to datasheet the inductance is 120 \u00b5H +\/-10%, the rated current is 2 A. The inductance of this kind of choke is relatively constant up to the rated current.<\/p>\n<p>The Power Choke Tester DPG10 is helpful especially for dimensioning and testing of self-made chokes with cylinder core due to easy measurement of the saturation current. An accurate calculation is mostly not possible.<\/p>\n<\/div><\/section><\/p><\/div>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2k06vt-03cb0cf19c76d239b170736530b0e3fd\">\n.flex_column.av-2k06vt-03cb0cf19c76d239b170736530b0e3fd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2k06vt-03cb0cf19c76d239b170736530b0e3fd av_three_fifth  avia-builder-el-6  el_after_av_two_fifth  el_before_av_section  avia-builder-el-last  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-8gzmh-dd16f68e14808c4576001bdc0f6220cf\">\n.avia-image-container.av-8gzmh-dd16f68e14808c4576001bdc0f6220cf img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-8gzmh-dd16f68e14808c4576001bdc0f6220cf .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-8gzmh-dd16f68e14808c4576001bdc0f6220cf av-styling- avia-align-center  avia-builder-el-7  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-9868 avia-img-lazy-loading-not-9868 avia_image ' src=\"https:\/\/www.ed-k.de\/wp-content\/uploads\/Ex5E.png\" alt='' title='Ex5E'  height=\"562\" width=\"663\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.ed-k.de\/wp-content\/uploads\/Ex5E.png 663w, https:\/\/www.ed-k.de\/wp-content\/uploads\/Ex5E-300x254.png 300w\" sizes=\"(max-width: 663px) 100vw, 663px\" \/><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-27cqa1-ae359697dc3f7dc9f4638d38b15d0abd '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p style=\"text-align: center;\"><strong><a href=\"https:\/\/www.ed-k.de\/wp-content\/uploads\/ex\/Ex5E.pdf\" target=\"_blank\" rel=\"noopener\">Entire measurement report<\/a><\/strong><\/p>\n<\/div><\/section><\/p><\/div>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_1'  class='avia-section av-av_section-e4ef95e6d64daa5d43c9bd2540e73530 main_color avia-section-default avia-no-border-styling  avia-builder-el-9  el_after_av_three_fifth  avia-builder-el-last  avia-bg-style-scroll 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-6775'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-24b38d92c565407be78a49c184045824\">\n#top .hr.av-av_hr-24b38d92c565407be78a49c184045824{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-av_hr-24b38d92c565407be78a49c184045824 .hr-inner{\nwidth:45%;\nborder-color:#f9b032;\nmax-width:45%;\n}\n.hr.av-av_hr-24b38d92c565407be78a49c184045824 .av-seperator-icon{\ncolor:#f9b032;\n}\n.hr.av-av_hr-24b38d92c565407be78a49c184045824 .av-seperator-icon.avia-svg-icon svg:first-child{\nfill:#f9b032;\nstroke:#f9b032;\n}\n<\/style>\n<div  class='hr av-av_hr-24b38d92c565407be78a49c184045824 hr-custom  avia-builder-el-10  el_before_av_one_fourth  avia-builder-el-first  hr-center hr-icon-yes'><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><span class='av-seperator-icon avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue8c5' data-av_iconfont='entypo-fontello' ><\/span><span class='hr-inner inner-border-av-border-fat'><span class=\"hr-inner-style\"><\/span><\/span><\/div>\n<div class='flex_column_table av-av_one_fourth-516caf0404068e135dbe858d70728756 sc-av_one_fourth av-equal-height-column-flextable'>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_one_fourth-516caf0404068e135dbe858d70728756\">\n.flex_column.av-av_one_fourth-516caf0404068e135dbe858d70728756{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-av_one_fourth-516caf0404068e135dbe858d70728756 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><div class='av-flex-placeholder'><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_one_half-ae262b068203d5b80fd6f01b4a968300\">\n.flex_column.av-av_one_half-ae262b068203d5b80fd6f01b4a968300{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-av_one_half-ae262b068203d5b80fd6f01b4a968300 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\/example1\/\">PFC choke with nanocrystalline core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example2\/\">Smoothing choke\u00a0with ferrite core under temperature influence<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example3\/\">Smoothing choke\u00a0with high flux core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example4\/\">Mains line choke with laminated iron core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example5\/\">VHF choke with ferrite rod core<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example6\/\">3-phase choke for mains filter<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example7\/\"> Current compensated chokes<\/a><\/strong><\/li>\n<li><strong><a href=\"https:\/\/www.ed-k.de\/en\/applications\/example8\/\">Low-Inductance, High-Current SMD Inductor<\/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-av_one_fourth-ae262b068203d5b80fd6f01b4a968300\">\n.flex_column.av-av_one_fourth-ae262b068203d5b80fd6f01b4a968300{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-av_one_fourth-ae262b068203d5b80fd6f01b4a968300 av_one_fourth  avia-builder-el-14  el_after_av_one_half  avia-builder-el-last  flex_column_table_cell av-equal-height-column av-align-top av-zero-column-padding  '     ><\/div><\/div><!--close column table wrapper. Autoclose: 1 -->\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":7872,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-6775","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Example 5: VHF choke with ferrite cylinder core<\/title>\n<meta name=\"description\" content=\"Example 5: : VHF choke with ferrite cylinder core. The inductance of this kind of choke is relatively constant up to the rated current.\" \/>\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\/example5\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Example 5: VHF choke with ferrite cylinder core\" \/>\n<meta property=\"og:description\" content=\"Example 5: : VHF choke with ferrite cylinder core. The inductance of this kind of choke is relatively constant up to the rated current.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ed-k.de\/en\/applications\/example5\/\" \/>\n<meta property=\"og:site_name\" content=\"ed-k\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-08T12:53:09+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ed-k.de\\\/en\\\/applications\\\/example5\\\/\",\"url\":\"https:\\\/\\\/www.ed-k.de\\\/en\\\/applications\\\/example5\\\/\",\"name\":\"Example 5: VHF choke with ferrite cylinder core\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ed-k.de\\\/en\\\/#website\"},\"datePublished\":\"2020-09-23T14:18:37+00:00\",\"dateModified\":\"2026-06-08T12:53:09+00:00\",\"description\":\"Example 5: : VHF choke with ferrite cylinder core. 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The inductance of this kind of choke is relatively constant up to the rated current.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ed-k.de\/en\/applications\/example5\/","og_locale":"en_US","og_type":"article","og_title":"Example 5: VHF choke with ferrite cylinder core","og_description":"Example 5: : VHF choke with ferrite cylinder core. The inductance of this kind of choke is relatively constant up to the rated current.","og_url":"https:\/\/www.ed-k.de\/en\/applications\/example5\/","og_site_name":"ed-k","article_modified_time":"2026-06-08T12:53:09+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.ed-k.de\/en\/applications\/example5\/","url":"https:\/\/www.ed-k.de\/en\/applications\/example5\/","name":"Example 5: VHF choke with ferrite cylinder core","isPartOf":{"@id":"https:\/\/www.ed-k.de\/en\/#website"},"datePublished":"2020-09-23T14:18:37+00:00","dateModified":"2026-06-08T12:53:09+00:00","description":"Example 5: : VHF choke with ferrite cylinder core. 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