{"id":61,"date":"2010-10-02T23:09:17","date_gmt":"2010-10-02T23:09:17","guid":{"rendered":"http:\/\/embedded-lab.com\/blog\/?p=61"},"modified":"2012-07-30T09:29:35","modified_gmt":"2012-07-30T13:29:35","slug":"determine-capacitance-suring-the-charging-time","status":"publish","type":"post","link":"https:\/\/embedded-lab.com\/blog\/determine-capacitance-suring-the-charging-time\/","title":{"rendered":"Determine capacitance by measuring the charging time"},"content":{"rendered":"<p>There are many ways to determine the capacitance of a capacitor. You can use an oscillating circuit where the capacitor is a part of it and measure the frequency of oscillation to find the capacitance. Or, you can also use a resistor-capacitor network and measure the rate of voltage rise across the capacitor to determine the capacitance, if the value of the resistor is known.<\/p>\n<p>Here&#8217;s a similar project where a PIC16F88 microcontroller measures the time required by a capacitor to charge through a known resistor from 0 to half of the reference voltage provided, and the capacitance is determined based on that information.<\/p>\n<p style=\"text-align: left;\"><a href=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Circuit1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-64\" title=\"Circuit\" src=\"http:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Circuit1.jpg\" alt=\"\" width=\"500\" height=\"530\" srcset=\"https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Circuit1.jpg 500w, https:\/\/embedded-lab.com\/blog\/wp-content\/uploads\/2010\/10\/Circuit1-283x300.jpg 283w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><!--more--><\/p>\n<p style=\"text-align: left;\">The firmware for Cap Meter is available in mikroC.<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td><script type=\"text\/javascript\">\/\/ <![CDATA[\n  google_ad_client = \"pub-3251335376149574\"; \/* Embedded-Lab_Blog_468x15, created 10\/1\/10 *\/ google_ad_slot = \"5007918417\"; google_ad_width = 468; google_ad_height = 15;\n\/\/ ]]><\/script><br \/>\n<script src=\"http:\/\/pagead2.googlesyndication.com\/pagead\/show_ads.js\" type=\"text\/javascript\">\n<\/script><\/td>\n<td><a href=\"http:\/\/www.pic_examples.byethost3.com\/capacitance_meter.html\" target=\"_blank\"><strong>Read<\/strong><\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>There are many ways to determine the capacitance of a capacitor. You can use an oscillating circuit where the capacitor is a part of it and measure the frequency of oscillation to find the capacitance. Or, you can also use a resistor-capacitor network and measure the rate of voltage rise across the capacitor to determine the capacitance, if the value of the resistor is known. Here&#8217;s a similar project where a PIC16F88 microcontroller measures the time required by a capacitor to charge through a known resistor from 0 to half of the reference voltage provided, and the capacitance is determined<\/p>\n","protected":false},"author":1,"featured_media":63,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[13,1307],"class_list":["post-61","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pic-projects","tag-cap-meter","tag-pic-projects"],"_links":{"self":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/comments?post=61"}],"version-history":[{"count":9,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/61\/revisions"}],"predecessor-version":[{"id":5869,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/posts\/61\/revisions\/5869"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media\/63"}],"wp:attachment":[{"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/media?parent=61"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/categories?post=61"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/embedded-lab.com\/blog\/wp-json\/wp\/v2\/tags?post=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}