{"version":"1.0","provider_name":"C.I. TAKIRON Corporation. Micro motor product site.","provider_url":"http:\/\/ftp.cik-ele.com\/en\/","author_name":"\u897f\u5c71","author_url":"http:\/\/ftp.cik-ele.com\/en\/author\/nishiyama\/","title":"What Is Back EMF? Back EMF in DC Motors Explained (Formula & Examples)\uff5cC.I. TAKIRON Corporation. Micro motor product site.","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"jS0BaCwrVA\"><a href=\"http:\/\/ftp.cik-ele.com\/en\/column\/back-emf\/\">What Is Back EMF? Back EMF in DC  Motors Explained (Formula &#038; Examples)<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"http:\/\/ftp.cik-ele.com\/en\/column\/back-emf\/embed\/#?secret=jS0BaCwrVA\" width=\"600\" height=\"338\" title=\"&#8220;What Is Back EMF? Back EMF in DC  Motors Explained (Formula &#038; Examples)&#8221; &#8212; C.I. TAKIRON Corporation. Micro motor product site.\" data-secret=\"jS0BaCwrVA\" 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=http:\/\/ftp.cik-ele.com\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/cik-ele.com\/wp-content\/uploads\/2026\/04\/014301ff1c30b522a31eb68c8822721c.jpg","thumbnail_width":1376,"thumbnail_height":880,"description":"An accessible explanation of back EMF\u2014the voltage spike generated when current is cut off in motors and other inductive loads. Learn the mechanism, its impact on motors, and effective protection methods. Essential reading for designers of reliable medical and industrial equipment."}