{"version":"1.0","provider_name":"TDK-Lambda UK Blog","provider_url":"https:\/\/blog.uk.tdk-lambda.com\/uk","author_name":"Dulcie","author_url":"https:\/\/blog.uk.tdk-lambda.com\/uk\/author\/dulcie\/","title":"Reducing Audible Noise from Power Supplies &#171; TDK-Lambda UK Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"yLoPeLcEfY\"><a href=\"https:\/\/blog.uk.tdk-lambda.com\/uk\/2017\/08\/09\/reducing-audible-noise-from-power-supplies\/\">Reducing Audible Noise from Power Supplies<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/blog.uk.tdk-lambda.com\/uk\/2017\/08\/09\/reducing-audible-noise-from-power-supplies\/embed\/#?secret=yLoPeLcEfY\" width=\"600\" height=\"338\" title=\"&#8220;Reducing Audible Noise from Power Supplies&#8221; &#8212; TDK-Lambda UK Blog\" data-secret=\"yLoPeLcEfY\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/blog.uk.tdk-lambda.com\/uk\/wp-includes\/js\/wp-embed.min.js' defer onload='\n<\/script>\n","description":"Noise can be described as \u2018unwanted sound\u2019 and environmental noise is usually just part of normal everyday life. One source of such noise is that created by cooling fans on AC-DC power supplies. The use of fans to cool electronic equipment has become increasingly widespread due to ongoing demands for miniaturisation. Convection cooling is ideal [&hellip;]","thumbnail_url":"https:\/\/blog.uk.tdk-lambda.com\/uk\/files\/2017\/07\/Table1-300x110.jpg"}