{"id":2976,"date":"2021-11-02T17:48:04","date_gmt":"2021-11-02T17:48:04","guid":{"rendered":"https:\/\/cnmegatech.com\/?p=2976"},"modified":"2025-06-06T08:40:35","modified_gmt":"2025-06-06T08:40:35","slug":"how-pwm-dc-axial-fan-works","status":"publish","type":"post","link":"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/","title":{"rendered":"PWM DC Axial Fans: 3 Secrets to Silent, Efficient Cooling"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/#Whats_PWM_Function\" >What\u2019s PWM Function?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/#Whats_PWM_Axial_FAN\" >What\u2019s PWM Axial FAN ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/#How_PWM_Axial_FAN_works\" >How PWM Axial FAN works ?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/#Professional_PWM_Fan_Manufacturer\" >Professional PWM Fan Manufacturer<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/#Questions\" >Questions?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/#Articles_you_may_also_like\" >Articles you may also like:<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\" id=\"h-what-s-pwm-function\"><span class=\"ez-toc-section\" id=\"Whats_PWM_Function\"><\/span><strong>What\u2019s PWM Function?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/en.wikipedia.org\/wiki\/Pulse-width_modulation\">PWM<\/a> stands for pulse width modulation. You can use it to control<a href=\"https:\/\/cnmegatech.com\/product-category\/dc-axial-fan\/\"> fan<\/a> speed. PWM fans work from low speed to full speed. And<a href=\"http:\/\/cnmegatech.com\"> Mega Tech<\/a> can provide you this kind of Axial Fan.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-s-pwm-axial-fan\"><span class=\"ez-toc-section\" id=\"Whats_PWM_Axial_FAN\"><\/span><strong>What\u2019s PWM Axial FAN <\/strong>?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">You can find <a href=\"https:\/\/cnmegatech.com\/product-category\/dc-axial-fan\/\">PWM Axial fans<\/a>  in some&nbsp;<a href=\"https:\/\/cnmegatech.com\/product\/80-x-80-x-25-mm-fan\/\">CPU coolers<\/a>&nbsp;and&nbsp;<strong><a href=\"https:\/\/cnmegatech.com\/product-category\/frameless-fan\/\">GPU<\/a><\/strong>&nbsp;( graphics card) coolers, air purifier ( <a href=\"https:\/\/cnmegatech.com\/product\/30-x-30-x-10-mm-fan-2\/\">air purifier fan you may interest<\/a>), miner (<strong> <a href=\"https:\/\/cnmegatech.com\/product\/120-x-120-x-38-mm-fan\/\">miner fan<\/a><\/strong><a href=\"https:\/\/cnmegatech.com\/product\/120-x-120-x-38-mm-fan\/\"> you may interests<\/a>)and other fans ,all those you can adjust speed. They use an integrated circuit to control the speed of a fan, therefore, how much cooling it\u2019s providing to the&nbsp;<a href=\"https:\/\/cnmegatech.com\/product-category\/dc-axial-fan\/\">CPU<\/a>. PWM fans can alter their speed and airflow based on the component&#8217;s temperature.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img fetchpriority=\"high\" decoding=\"async\" width=\"665\" height=\"528\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-PWM-FAN.jpg\" alt=\"\" class=\"wp-image-2977\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-PWM-FAN.jpg 665w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-PWM-FAN-600x476.jpg 600w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-PWM-FAN-300x238.jpg 300w\" sizes=\"(max-width: 665px) 100vw, 665px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-how-pwm-axial-fan-works\"><span class=\"ez-toc-section\" id=\"How_PWM_Axial_FAN_works\"><\/span><strong><a href=\"https:\/\/youtu.be\/alYg1nIbYyg\">How PWM Axial FAN works ?<\/a><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\"><strong>First of all,<\/strong> , the PWM Axial fan adjusts the speed, when it gets temperature information directly from the CPU. Depending on the CPU temperature, the temperature-controlled fan will have different speed adjustments corresponding to it. Four levels, five levels, or even more levels can be adjusted. And PWM control is basically a feeling of infinitely variable speed. Due to the real-time adjustment of the pulse width signal.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-rounded\"><a href=\"https:\/\/cnmegatech.com\/product\/50-x-50-x-15-mm-fan-2\/\"><img decoding=\"async\" width=\"1024\" height=\"702\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/6015-BLOWER-PWM-1024x702.jpg\" alt=\"\" class=\"wp-image-2978\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/6015-BLOWER-PWM-1024x702.jpg 1024w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/6015-BLOWER-PWM-600x411.jpg 600w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/6015-BLOWER-PWM-300x206.jpg 300w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/6015-BLOWER-PWM-768x526.jpg 768w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/6015-BLOWER-PWM.jpg 1252w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">PWM BLOWER<\/figcaption><\/figure>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Second,<\/strong> the<a href=\"https:\/\/cnmegatech.com\/product-category\/dc-axial-fan\/\"> PWM Axial fan<\/a> can maintain a very low speed when the computer is on standby. In the standby mode, for example, the CPU temperature is below 40 to 50 degrees, and its speed is only about one thousand revolutions,  which greatly reduces the operating noise. The designed maximum speed, more than two thousand revolutions,  will only appear when the CPU temperature is close to the limit temperature, that is, 65-67 degrees. Compared with the traditional temperature-controlled fan,  it has a larger speed control range and better solves the problems of noise and performance.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-rounded\"><a href=\"https:\/\/cnmegatech.com\/product-category\/frameless-fan\/\"><img decoding=\"async\" width=\"984\" height=\"738\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Frameless-fan-9010-edited.jpg\" alt=\"\" class=\"wp-image-2980\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Frameless-fan-9010-edited.jpg 984w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Frameless-fan-9010-edited-600x450.jpg 600w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Frameless-fan-9010-edited-300x225.jpg 300w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Frameless-fan-9010-edited-768x576.jpg 768w\" sizes=\"(max-width: 984px) 100vw, 984px\" \/><\/a><\/figure>\n\n\n\n<p class=\"has-medium-font-size\"><strong>Third, <\/strong> when this fan is turned on,  the speed will increase to the highest. And after a few seconds, it will decrease to the low-speed level of standby. This feature is also the most obvious feature of the PWM intelligent temperature control fan. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"647\" height=\"534\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/4PIN-PWM.png\" alt=\"\" class=\"wp-image-2981\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/4PIN-PWM.png 647w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/4PIN-PWM-600x495.png 600w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/4PIN-PWM-300x248.png 300w\" sizes=\"(max-width: 647px) 100vw, 647px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-professional-pwm-fan-manufacturer\"><span class=\"ez-toc-section\" id=\"Professional_PWM_Fan_Manufacturer\"><\/span>Professional PWM Fan Manufacturer<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\"><strong><a href=\"http:\/\/cnmegatech.com\" rel=\"nofollow\">Mega Tech<\/a><\/strong> is a large enterprise specializing in customization, R&amp;D, manufacture, sale, and service of<a href=\"https:\/\/cnmegatech.com\/product-category\/dc-axial-fan\/\"> DC brushless fan<\/a>, <a href=\"https:\/\/cnmegatech.com\/product-category\/frameless-fan\/\">Frameless fan<\/a>, <a href=\"https:\/\/cnmegatech.com\/product-category\/blower\/\">DC blower&nbsp;fan<\/a>, and non-standard fan. With 150&nbsp;employees and an annual output of more than 18 million fans.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><\/pre>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full is-style-rounded\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"905\" data-id=\"2989\" src=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-Tech-advantage.jpg\" alt=\"\" class=\"wp-image-2989\" srcset=\"https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-Tech-advantage.jpg 750w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-Tech-advantage-600x724.jpg 600w, https:\/\/cnmegatech.com\/wp-content\/uploads\/2021\/11\/Mega-Tech-advantage-249x300.jpg 249w\" sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:24px\"><span class=\"ez-toc-section\" id=\"Questions\"><\/span>Questions?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\">Email us at inquiry@cnmegatech.com\u00a0or speak to one of our experts for further information on the ideal solution for your application\u202f00<strong>8613570567086<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/cooling-fan-function-signal-introduction\/\"><strong>If you want know more about Fan function and feature, please refer to this article.<\/strong><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Articles_you_may_also_like\"><\/span>Articles you may also like:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/the-application-of-cooling-fans-in-3d-printers\/\">The application of cooling fans in 3D printers<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/dc-fan-in-the-application-of-stage-lighting\/\">DC fan in the application of stage lighting<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/automotive-cooling-application-solutions\/\">Automotive cooling application solutions<\/a><\/p>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/cnmegatech.com\/Axial-Fan\/how-pwm-dc-axial-fan-works\/\">5G network cooling solution<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>PWM stands for pulse width modulation. You can use it to control fan speed. PWM fans work from low speed to full speed.And Mega Tech can provide you this kind of PWM Axial Fan<\/p>\n","protected":false},"author":1,"featured_media":2977,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_joinchat":{"message_text":"Custom your Axial Fan Now \uff01\nContact inquiry@cnmegatech.com"},"footnotes":""},"categories":[318],"tags":[809,497,599,333,805,810,808,804,806,807],"class_list":["post-2976","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trends","tag-airflow","tag-axial-fan","tag-cooling","tag-dc-fan","tag-electronics","tag-hvac","tag-pc-cooling","tag-pwm","tag-technology","tag-thermal"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts\/2976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/comments?post=2976"}],"version-history":[{"count":19,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts\/2976\/revisions"}],"predecessor-version":[{"id":7780,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/posts\/2976\/revisions\/7780"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/media\/2977"}],"wp:attachment":[{"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/media?parent=2976"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/categories?post=2976"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnmegatech.com\/Axial-Fan\/wp-json\/wp\/v2\/tags?post=2976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}