A cikinLEDda'irar samar da wutar lantarki bisa ka'idar rage karfin wutar lantarki, ka'idar rage wutar lantarki ta kasance kamar haka: lokacin da aka yi amfani da wutar lantarki ta sinusoidal AC zuwa da'irar capacitor, caji akan faranti biyu na capacitor da filin lantarki tsakanin. faranti ayyuka ne na lokaci. Wato: ingancin inganci da girman ƙarfin lantarki da na yanzu akan capacitor suma suna bin dokar Ohm. Wato lokacin da aka kayyade girman ƙarfin lantarki da mita akan capacitor, tsayayyen sinusoidal AC na yanzu zai gudana. Karami da capacitive reactance ne, mafi girma da capacitance darajar ne, kuma mafi girma na halin yanzu gudana ta cikin capacitor ne. Idan an haɗa nauyin da ya dace a jere a kan capacitor, za a iya samun raguwar tushen wutar lantarki, wanda za'a iya fitarwa ta hanyar gyarawa, tacewa da daidaitawar wutar lantarki. Matsalar da ya kamata a lura da ita a nan ita ce, a cikin wannan tsarin, capacitor yana amfani da makamashi ne kawai a cikin kewaye, amma ba ya cinye makamashi, don haka ingancin capacitor buck circuit yana da yawa sosai.

Yawancin lokaci, babban tuƙi kewaye naLEDsamar da wutar lantarki bisa ka'idar capacitor Buck za a hada da Buck capacitor, da'irar iyakancewa na yanzu, daidaita yanayin tacewa da ƙarfin lantarki daidaita yanayin shunt. Daga cikin su, da mataki-saukar capacitor daidai da mataki-saukar transformer a cikin talakawan irin ƙarfin lantarki stabilizing circuit, wanda aka kai tsaye alaka da AC ikon samar da wutar lantarki da kuma kai kusan duk AC ikon samar u, don haka karfe film capacitor ba tare da polarity. ya kamata a zaba. A daidai lokacin da aka kunna wutar, yana iya zama kololuwar darajar mafi inganci ko mara kyau na zagayen U. a wannan lokacin, halin yanzu na nan take zai yi girma sosai. Don haka, ana buƙatar haɗa na'ura mai iyakancewa na yanzu a jere a cikin da'ira don tabbatar da amincin da'ira, wanda shine babban dalilin da ya sa kewayawar da'irar na yanzu ya zama dole. Bukatun ƙira na mai gyarawa da da'irar tacewa iri ɗaya ne da na talakawan da'irar samar da wutar lantarki ta DC. Dalilin da yasa ake buƙatar ƙarfin lantarki mai daidaita shunt kewaye shine cewa a cikin ƙarfin rage ƙarfin lantarki, ƙimar inganci na halin yanzu I yana da kwanciyar hankali kuma bai shafi canjin kaya ba. Sabili da haka, a cikin da'irar daidaitawar wutar lantarki, yakamata a sami da'irar shunt don amsa canjin kaya na halin yanzu.