MuLEDkutyaira magetsi ekupa dunhu zvichibva pamusimboti we capacitor kuderedzwa kwemagetsi, iyo voltage yekudzikisa musimboti yakaita seinotevera: kana sinusoidal AC simba rekupa iwe rinoiswa kune capacitor wedunhu, kubhadharisa pamahwendefa maviri e capacitor uye yemagetsi munda pakati. mahwendefa mabasa enguva. Kureva kuti: kukosha kunoshanda uye amplitude yevoltage uye ikozvino pane capacitor zvakare inotevera mutemo waOhm. Iko ndiko, kana iyo voltage amplitude uye frequency pane capacitor yakagadziriswa, yakagadzikana sinusoidal AC ikozvino ichayerera. Iyo diki iyo capacitive reactance ndeye, iyo yakakura iyo capacitance kukosha ndeye, uye yakakura ikozvino inoyerera kuburikidza ne capacitor iri. Kana mutoro wakakodzera wakabatanidzwa munhevedzano pane capacitor, yakaderedzwa voltage sosi inogona kuwanikwa, iyo inogona kubuda kuburikidza nekugadzirisa, kusefa uye kudzikamisa voltage. Dambudziko rinoda kucherechedzwa pano nderekuti mune ino yedunhu system, iyo capacitor inoshandisa simba chete mudunhu, asi haidyi simba, saka kushanda kweiyo capacitor buck circuit yakanyanya.

Kazhinji, iyo huru yekutyaira yedunhu reLEDmagetsi anoenderana nemusimboti we capacitor buck ichave inoumbwa neBuck capacitor, ikozvino inodzika dunhu, kugadzirisa sefa redunhu uye voltage inodzikamisa shunt wedunhu. Pakati pavo, iyo nhanho-pasi capacitor yakaenzana neinotsika-pasi transformer mune yakajairwa voltage inodzikamisa wedunhu, iyo yakabatana zvakananga kune AC magetsi emagetsi dunhu uye inotakura dzinenge dzese AC magetsi ekupa u, saka simbi firimu capacitor isina polarity. inofanira kusarudzwa. Panguva iyo magetsi akabatidzwa, inogona kunge iri iyo yepamusoro-soro yehuwandu hwakanaka kana husina kunaka hafu yeU. Naizvozvo, yazvino inomisa resistor inoda kubatanidzwa munhevedzano mudunhu kuti ive nechokwadi chekuchengetedzwa kwedunhu, ndicho chikonzero chikuru nei iyo yazvino yekumisikidza yedunhu ichikosha. Izvo zvinodikanwa zvekugadzira zveinogadzirisa uye sefa wedunhu zvakafanana neiyo yakajairwa DC inodzorwa magetsi emagetsi. Chikonzero nei voltage inodzikamisa shunt yedunhu ichidikanwa ndechekuti mumagetsi ekudzikisa dunhu, kukosha kunoshanda kweazvino I kwakagadzikana uye hakukanganisike nekuchinja kwemutoro wezvino. Naizvozvo, mumagetsi ekudzikamisa dunhu, panofanira kunge paine shunt redunhu kupindura kune shanduko yemutoro ikozvino.