KweI-LEDukushayela isekethe yokunikezwa kwamandla ngokusekelwe kumgomo wokunciphisa amandla kagesi we-capacitor, umgomo wokunciphisa amandla kagesi ucishe kanje: lapho ugesi we-sinusoidal AC usetshenziswa kusekethe ye-capacitor, ukushaja kumapuleti amabili e-capacitor kanye nenkundla kagesi phakathi amapuleti ayimisebenzi yesikhathi. Okusho ukuthi: inani elisebenzayo kanye nobukhulu be-voltage kanye namanje ku-capacitor nakho kulandela umthetho ka-Ohm. Okusho ukuthi, lapho i-voltage amplitude kanye nemvamisa ku-capacitor zilungiswa, i-AC ye-sinusoidal eqinile izogeleza. I-reactance ye-capacitive encane iwukuthi, inani elikhulu le-capacitance liyanda, futhi likhulu lamanje eligeleza nge-capacitor. Uma umthwalo ofanelekayo uxhunywe ochungechungeni ku-capacitor, umthombo we-voltage oncishisiwe ungatholakala, ongakhishwa ngokulungiswa, ukuhlunga kanye nokuqiniswa kwe-voltage. Inkinga okufanele iqashelwe lapha ukuthi kulesi simiso sesifunda, i-capacitor isebenzisa amandla kuphela kumjikelezo, kodwa ayidli amandla, ngakho-ke ukusebenza kahle kwe-capacitor buck circuit kuphezulu kakhulu.

Ngokuvamile, isifunda sokushayela esiyinhloko seI-LEDukunikezwa kwamandla okusekelwe kumgomo we-capacitor buck kuzokwakhiwa i-Buck capacitor, isifunda esinqunyelwe samanje, ukulungisa umjikelezo wesihlungi kanye ne-voltage stabilizing shunt circuit. Phakathi kwazo, i-capacitor eyehlayo ilingana ne-transformer eyehlayo kumjikelezo ojwayelekile wokuzinzisa kagesi, oxhunywe ngokuqondile kumjikelezo wokuphakela amandla we-AC futhi ithwala cishe wonke amandla kagesi we-AC u, ngakho-ke i-capacitor yefilimu yensimbi ngaphandle kwe-polarity. kufanele kukhethwe. Okwamanje lapho amandla avuliwe, kungase kube inani eliphakeme lenani eliphakeme lomjikelezo omuhle noma ongemuhle wengxenye ye-U. ngalesi sikhathi, umsinga osheshayo uzoba mkhulu kakhulu. Ngakho-ke, i-resistor ekhawula yamanje idinga ukuxhunywa ochungechungeni lwesekethe ukuze kuqinisekiswe ukuphepha kwesekethe, okuyisizathu esiyinhloko sokuthi kungani isekethe yamanje yokukhawulela ibalulekile. Izidingo zedizayini zesilungisi nesihlungi sesekethe ziyefana nalezo zesekethe yokuphakelwa kwamandla elawulwa yi-DC evamile. Isizathu sokuthi kungani i-voltage stabilizing shunt circuit iyadingeka ukuthi kumjikelezo wokunciphisa i-voltage, inani elisebenzayo le-current I lizinzile futhi alithinteki ngokushintsha komthwalo wamanje. Ngakho-ke, kumjikelezo wokuzinzisa i-voltage, kufanele kube nesifunda se-shunt ukuphendula ushintsho lwamanje lomthwalo.