{"id":2170,"date":"2010-08-01T00:00:52","date_gmt":"2010-07-31T15:00:52","guid":{"rendered":"https:\/\/micronix-jp.com\/?p=2170"},"modified":"2023-08-01T17:24:40","modified_gmt":"2023-08-01T08:24:40","slug":"led","status":"publish","type":"post","link":"https:\/\/micronix-jp.com\/english\/note\/application\/led.html","title":{"rendered":"Checking magnetic field emission noise of LED luminaire easily"},"content":{"rendered":"<p class=\"has-large-font-size\"><strong>With handheld spectrum analyzer,the radiated noise characteristics of LED luminaire can be simply checked.<br>Since effect of measures can be immediately estimated by easy measurement, development period is shortened and cost is reduced.<\/strong><\/p><div class=\"wp-block-vk-blocks-table-of-contents-new vk_tableOfContents vk_tableOfContents-style-default tabs\"><div class=\"tab\"><div class=\"vk_tableOfContents_title\">\u76ee\u6b21<\/div><input type=\"checkbox\" id=\"chck1\"\/><label class=\"tab-label vk_tableOfContents_openCloseBtn button_status button_status-close\" for=\"chck1\"><\/label><ul class=\"vk_tableOfContents_list tab_content-close\"><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\" data-reactroot=\"\"><a href=\"#vk-htags-a9bfd428-27a4-48c9-b28c-7278e25e5673\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">1. <\/span>Application<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\" data-reactroot=\"\"><a href=\"#vk-htags-ce418386-4a4e-4dc5-a824-da86056b6e60\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">2. <\/span>Solution<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\" data-reactroot=\"\"><a href=\"#vk-htags-b88a49f9-6126-4fba-8162-efe2aba7ba1e\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">3. <\/span>System configuration<\/a><\/li><li class=\"vk_tableOfContents_list_item vk_tableOfContents_list_item-h-2\" data-reactroot=\"\"><a href=\"#vk-htags-0fabc382-e4e4-4096-bb48-efa7cc00ed66\" class=\"vk_tableOfContents_list_item_link\"><span class=\"vk_tableOfContents_list_item_link_preNumber\">4. <\/span>Products introduction<\/a><\/li><\/ul><\/div><\/div><h2 class=\"wp-block-heading\" id=\"vk-htags-a9bfd428-27a4-48c9-b28c-7278e25e5673\">Application<\/h2><p> Recently, LED luminaire has been spread rapidly but the noise radiated from built-in AC-DC converter causes problems.<\/p><p>For this reason, Electrical Appliances and Material Act is applied to it in Japan. \nMethod of measuring the noise is also defined in CISPR but it is difficult to check  the effect of measures immediately since equipment cost is very expensive.<\/p><p>With our system combining handheld spectrum analyzer with loop antenna, the magnetic field radiation noise characteristics can be checked easily and by inexpensive cost.<\/p><p>This is not a formal evaluation system for obtaining certification. However, the effect of measures can be immediately confirmed since it is possible to check the existence of unnecessary noise and frequency characteristics simply. As a result, development period is shortened and development cost is reduced. <\/p><ul class=\"wp-block-list\"><li>Simple check of the magnetic field radiated emission characteristics in low frequency range using loop antenna.<\/li>\n\n<li>Measurement resul is saved in USB memory, and then various processings can be simply performed with PC. <\/li>\n\n<li> The handheld type of easy-to-use\uff1a compact,light weight and 4 hour battery operation.<\/li><\/ul><h2 class=\"vk_block-margin-lg--margin-top wp-block-heading\" id=\"vk-htags-ce418386-4a4e-4dc5-a824-da86056b6e60\">Solution<\/h2><p>Result of radiated magnetic field strength measurement at 0 to 500kHz<\/p><figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"\/eng\/image\/application\/LED-00.jpg\" alt=\"Figure:Result of radiated magnetic field strength measurement at 0 to 500kHz\"\/><\/figure><p><\/p><figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"\/eng\/image\/application\/LED-01.jpg\" alt=\"Photo:Loop antenna and Handheld spectrum analyzer MSA438\"\/><\/figure><h2 class=\"vk_block-margin-lg--margin-top wp-block-heading\" id=\"vk-htags-b88a49f9-6126-4fba-8162-efe2aba7ba1e\">System configuration<\/h2><figure class=\"wp-block-flexible-table-block-table\"><table class=\"\"><tbody><tr><td><a href=\"\/english\/products\/spectrum-analyzer\/msa400\/msa438.html\">3.3GHz Spectrum analyzer (MSA438) <\/a><\/td><\/tr><tr><td> Dedicated battery (MB400)<\/td><\/tr><tr><td><a href=\"\/english\/products\/test-accessories\/man120.html\">Loop antenna (MAN120) <\/a><\/td><\/tr><tr><td> Connection cables<\/td><\/tr><\/tbody><\/table><\/figure><h2 class=\"vk_block-margin-lg--margin-top wp-block-heading\" id=\"vk-htags-0fabc382-e4e4-4096-bb48-efa7cc00ed66\">Products introduction<\/h2><div class=\"wp-block-vk-blocks-select-post-list vk_posts vk_posts-postType-post vk_posts-layout-card-noborder vk_postList\"><div id=\"post-5787\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-2170 post type-post status-publish format-standard has-post-thumbnail hentry category-category-note tag-app-emc tag-app-led tag-market-emc tag-application-spectrum-analyzer\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620.png)\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa400\/msa438.html\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620-300x300.png\" class=\"vk_post_imgOuter_img card-img-top wp-post-image\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2008\/05\/msa438_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div><!-- [ \/.vk_post_imgOuter ] --><div class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/spectrum-analyzer\/msa400\/msa438.html\">Handheld Spectrum Analyzer MSA438<\/a><\/h5><p class=\"vk_post_excerpt card-text\">The most popular model in MSA 400 series.<br \/>\r\nMeasurement frequency : 50kHz to 3.3GHz <\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] -->\n\n<div id=\"post-5801\" class=\"vk_post vk_post-postType-product card card-noborder vk_post-col-xs-12 vk_post-col-sm-6 vk_post-col-md-3 vk_post-col-lg-3 vk_post-col-xl-3 vk_post-col-xxl-3 post-2170 post type-post status-publish format-standard has-post-thumbnail hentry category-category-note tag-app-emc tag-app-led tag-market-emc tag-application-spectrum-analyzer\"><div class=\"vk_post_imgOuter\" style=\"background-image:url(https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620.png)\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/test-accessories\/man120.html\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-300x300.png\" class=\"vk_post_imgOuter_img card-img-top wp-post-image\" alt=\"\" srcset=\"https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-300x300.png 300w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-150x150.png 150w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-600x600.png 600w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620-100x100.png 100w, https:\/\/micronix-jp.com\/english\/wp-content\/uploads\/sites\/2\/2023\/03\/man120_620x620.png 620w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/div><!-- [ \/.vk_post_imgOuter ] --><div class=\"vk_post_body card-body\"><h5 class=\"vk_post_title card-title\"><a href=\"https:\/\/micronix-jp.com\/english\/products\/test-accessories\/man120.html\">Loop Antenna MAN120<\/a><\/h5><p class=\"vk_post_excerpt card-text\">A small Loop Antenna with a diameter of 40 cm suitable for low frequency measurement.<br \/>\r\nAntenna suitable for detection of low frequency signal and noise.<\/p><\/div><!-- [ \/.card-body ] --><\/div><!-- [ \/.card ] --><\/div><div class=\"wp-block-vk-blocks-button vk_button vk_button-color-custom vk_button-a9ef2090-7824-4df2-96af-4f6297e615ba vk_button-align-block\"><a href=\"\/eng\/file-download\/application\/pdf\/LED_mag_emi.pdf\" class=\"vk_button_link btn has-background btn-lg btn-block\" role=\"button\" aria-pressed=\"true\" target=\"_blank\" rel=\"noopener\"><div class=\"vk_button_link_caption\"><i class=\"fas fa-file-pdf vk_button_link_before\" aria-hidden=\"true\"><\/i><span class=\"vk_button_link_txt\">Download This Application Note (PDF)<\/span><\/div><\/a><\/div><style type=\"text\/css\">.vk_button-a9ef2090-7824-4df2-96af-4f6297e615ba .has-background {\n\t\t\t\tbackground-color: #5b6069;\n\t\t\t\tborder: 1px solid #5b6069;\n\t\t\t} <\/style><p><\/p><div class=\"wp-block-cover is-light vk_block-margin-xl--margin-top\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-white-background-color has-background-dim\"><\/span><img class=\"wp-block-cover__image-background wp-image-8105\" 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aria-pressed=\"true\" target=\"_blank\" rel=\"noopener\"><div class=\"vk_button_link_caption\"><i class=\"far fa-envelope vk_button_link_before\" aria-hidden=\"true\"><\/i><span class=\"vk_button_link_txt\"><strong>Contact Form<\/strong><\/span><\/div><\/a><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>With handheld spectrum analyzer,the radiated noise characteristics of LED luminaire can be simply checked.Since effect of measures can be immediately estimated by easy measurement, development period is shortened and cost [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8166,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[17],"tags":[44,48,66,75],"class_list":["post-2170","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-category-note","tag-app-emc","tag-app-led","tag-market-emc","tag-application-spectrum-analyzer"],"_links":{"self":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/2170","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/comments?post=2170"}],"version-history":[{"count":3,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/2170\/revisions"}],"predecessor-version":[{"id":9667,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/posts\/2170\/revisions\/9667"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/media\/8166"}],"wp:attachment":[{"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/media?parent=2170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/categories?post=2170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/micronix-jp.com\/english\/wp-json\/wp\/v2\/tags?post=2170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}