Title: Air Conditioner Board CT1 Current Transformer Mutual Inductor Current Detection<\/p>\n
Universal Air Conditioner Circuit Board CT1 Current Transformer Mutual Inductor Current Detection Current Transformer Coil<\/span><\/p>\n CT1 Current Transformer<\/span><\/p>\n It is actually a linear transformer, and its input current (detected current)\u00a0<\/span> The current output by CT1 produces an AC voltage drop on the R6 resistor.\u00a0<\/span> The calculation method of the voltage value of the chip A\/D port is as follows:<\/span><\/p>\n V2=R13\/(R13+R14)*V1=R13\/(R13+R14)*(0.707*R6*Ii\/C-0.5)<\/span><\/strong><\/span><\/p>\n The purpose of the clamping diode D9 is to ensure that the analog input\u00a0<\/span> \u00a0<\/p>\n Resistance of the coil: about 600 ohm<\/span><\/p>\n \u00a0<\/p>\n \u0627\u0644\u0623\u0631\u0642\u0627\u0645 (\u0627\u0644\u0639\u0644\u0627\u0645\u0629 \u0627\u0644\u062a\u062c\u0627\u0631\u064a\u0629) \u0648\u0627\u0644\u062d\u0631\u0648\u0641 \u0627\u0644\u0645\u0648\u062c\u0648\u062f\u0629 \u0639\u0644\u0649 \u0627\u0644\u0648\u062d\u062f\u0629\u060c \u0644\u064a\u0633 \u0644\u0647\u0627 \u0623\u064a \u0623\u0647\u0645\u064a\u0629 \u0639\u0645\u0644\u064a\u0629\u060c \u0641\u0642\u0637 \u0644\u0644\u0625\u0634\u0627\u0631\u0629!<\/span> \u00a0<\/p>\n \u064a\u0631\u062c\u0649 \u0627\u0644\u062a\u0623\u0643\u062f \u0645\u0646 \u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0642\u0627\u0626\u0645\u0629 \u0645\u0627 \u0625\u0630\u0627 \u0643\u0627\u0646 \u0647\u0630\u0627 \u0627\u0644\u0639\u0646\u0635\u0631 \u0645\u062a\u0648\u0627\u0641\u0642\u064b\u0627 \u0645\u0639 \u062c\u0647\u0627\u0632\u0643 \u0642\u0628\u0644 \u062a\u0642\u062f\u064a\u0645 \u0627\u0644\u0637\u0644\u0628.<\/span><\/p>\n \u0625\u0630\u0627 \u0643\u0627\u0646 \u0644\u062f\u064a\u0643 \u0623\u064a \u0627\u0633\u062a\u0641\u0633\u0627\u0631\u0627\u062a \u0623\u0648 \u0623\u0633\u0626\u0644\u0629\u060c \u0641\u0644\u0627 \u062a\u062a\u0631\u062f\u062f \u0641\u064a \u0627\u0644\u0627\u062a\u0635\u0627\u0644 \u0628\u0646\u0627 \u0642\u0628\u0644 \u0627\u0644\u0634\u0631\u0627\u0621\u060c \u0634\u0643\u0631\u064b\u0627 \u0644\u0643!<\/span><\/p>\n \u00a0<\/p>\n \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a:<\/span><\/strong><\/p>\n 1x Current Transformer Coil<\/span><\/p>\n \u2014-(\u0633\u064a\u062a\u0645 \u0625\u0631\u0633\u0627\u0644 \u062f\u0641\u0639\u0629\/\u0644\u0648\u0646\/\u0646\u0648\u0639 \u0639\u0634\u0648\u0627\u0626\u064a \u0627\u0641\u062a\u0631\u0627\u0636\u064a\u064b\u0627)<\/span><\/p>","protected":false},"excerpt":{"rendered":" \u0644\u0648\u062d\u0629 \u0645\u0643\u064a\u0641 \u0627\u0644\u0647\u0648\u0627\u0621 CT1 \u0645\u062d\u0648\u0644 \u062a\u064a\u0627\u0631 \u0644\u0644\u0643\u0634\u0641 \u0639\u0646 \u0627\u0644\u062d\u062b \u0627\u0644\u0645\u062a\u0628\u0627\u062f\u0644 \u0644\u0644\u062a\u064a\u0627\u0631<\/p>","protected":false},"featured_media":2472,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[2],"product_tag":[],"class_list":["post-2471","product","type-product","status-publish","has-post-thumbnail","product_cat-air-conditioner-parts","product_shipping_class-free-shipping","first","instock","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/product\/2471","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/comments?post=2471"}],"version-history":[{"count":0,"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/product\/2471\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/media\/2472"}],"wp:attachment":[{"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/media?parent=2471"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/product_brand?post=2471"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/product_cat?post=2471"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/profixtips.com\/ar\/wp-json\/wp\/v2\/product_tag?post=2471"}],"curies":[{"name":"\u0627\u0644\u0642\u0648\u0629 \u0627\u0644\u0628\u0631\u064a\u0629 (\u0627\u0644\u062c\u064a\u0634)","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
and output current are proportional to the number of turns of its\u00a0<\/span>
internal coil (both are the amount of alternating current).<\/span><\/p>\n
The voltage is rectified by the D10 switching diode and becomes a DC voltage V1.\u00a0<\/span>
V1 divides the voltage between R14 and R13.\u00a0<\/span>
The E6 electrolytic capacitor stabilizes the voltage V2 across the R13 resistor.\u00a0<\/span>
It is sent to the A\/D port of the chip for processing.<\/span><\/p>\n
to the chip port is not greater than 5V to ensure the reliability of the chip;\u00a0<\/span>
the resistor R12 and the capacitor C8 filter out the high-frequency\u00a0<\/span>
components of the input and reduce its impact on the MCU.<\/span><\/p>\n
\u00a0<\/span>
\u0637\u0627\u0644\u0645\u0627 \u0623\u0646\u0647\u0627 \u062a\u0628\u062f\u0648 \u0645\u062a\u0634\u0627\u0628\u0647\u0629 \u0623\u0648 \u0645\u0645\u0627\u062b\u0644\u0629\u060c \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647\u0627 \u0644\u062c\u0647\u0627\u0632\u0643!<\/span>
\u00a0<\/span>
\u0625\u0630\u0627 \u0643\u0627\u0646\u062a \u0623\u0628\u0639\u0627\u062f \u0648\u0645\u0638\u0647\u0631 \u0627\u0644\u0648\u062d\u062f\u0629 \u0627\u0644\u0642\u062f\u064a\u0645\u0629 \u0645\u062a\u0637\u0627\u0628\u0642\u0629\u060c \u0641\u0633\u062a\u0639\u0645\u0644 \u0645\u0646 \u0623\u062c\u0644\u0643!<\/span><\/p>\n