Lub rectifier tuaj yeem ua lub tshuab nqus raj, lub raj tshuaj tua hluav taws, cov khoom siv silRectifier (Lus Askiv: rectifier) yog ib qho khoom siv uas hloov cov khoom sib hloov hloov mus rau hauv kev siv hluav taws xob ncaj qha, uas tuaj yeem siv rau cov khoom siv hluav taws xob thiab nrhiav cov xov tooj cua paib.icon semiconductor diode, mercury arc , thiab lwm yam. Ntawm qhov tsis tooj, ib qho khoom siv uas hloov ncaj qha tam sim no mus rau qhov hloov tam sim no yog hu ua" inverter."
Hauv kev lees paub txog UPS, tsuas yog lub roj teeb xav tau them tus nqi, thiab lub thauj khoom tsis tas yuav tsum tau muab lub zog, yog li tsuas muaj lub charger. Hauv UPS ob npaug hloov dua siab tshiab, cov cuab yeej no tsis tsuas yog muab lub zog rau lub zog inverter, tab sis kuj tseem them lub roj teeb, yog li nws hu ua rectifier / them.
Lub tshuab ntsuas hluav taws xob yog qhov cuab yeej txhim kho, yooj yim muab tso rau nws yog ib qho cuab yeej uas hloov mus rau lwm qhov hloov tam sim no (AC) mus rau qhov hloov tam sim no (DC). Nws muaj ob txoj haujlwm tseem ceeb: ua ntej, nws hloov kev hloov pauv hloov pauv (AC) mus rau hauv hluav taws xob tam sim no (DC), uas tau lim thiab xa tawm rau lub nra lossis rau lub inverter; qhov thib ob, nws muab hluav taws xob them rau lub roj teeb. Yog li ntawd, nws kuj ua lub charger tib lub sijhawm.
Txhawm rau kom txo tau cov cuab yeej puas vim yog overvoltage tawg thiab txhim kho qhov kev cia siab ntawm cov twj rectifier, kev siv lub tshuab nqus roj silicon avalanche siv tau. Nyob rau hauv cov khoom siv zoo li no, thaum rov qab qhov hluav taws xob siab tshaj qhov tso cai cov nqi siab kawg, cov teeb meem av poob sib xyaw tshwm sim thoob plaws tag nrho PN kev sib tshuam. Cov cuab yeej tuaj yeem ua haujlwm hauv qhov muaj qhov ntsuas hluav taws xob thiab qhov siab tam sim no, yog li nws tuaj yeem tiv thaiv qhov rov qab muaj zog. Thaum tsim cov cuab yeej zoo no, nws yuav tsum muaj ob peb cov khoom tsis xws luag, kev tiv thaiv tsis sib xws, thaj chaw du, thiab kev tiv thaiv kom zoo ntawm qhov chaw tshuam kom tsis txhob tawg. Selenium rectifier muaj qhov muaj peev xwm loj los tiv thaiv kev sib tw thiab qhov muaj zog muaj peev xwm tiv taus kev thawb rov qab.
Hauv ob theem pib ntawm cov roj rectifiers raws cov hluav taws xob muaj zog diodes lossis thyristors, qhov siab-voltage AC zog ntawm daim phiaj yog hloov mus rau DC fais fab los ntawm qhov rectifier. Qhia txog lwm hom kev siv cov khoom siv txuas tom ntej (nyob ze lossis deb): cov tub txawg ntoo, cov ntsuas hluav taws xob DC / DC cov hloov pauv, lossis cov khoom siv tam sim no inverter nquag rectifiers raws cov khoom lag luam ntawm cov khoom lag luam ntawm cov tswj tsis tau diodes. Pom tseeb, qhov tseeb kawg ntawm cov tshuab rectifier no muaj ntau cov ntsiab lus los tsim kho, tab sis nws tuaj yeem qhia qhov zoo, piv txwv li, nws tau thau rau ntawm daim phiaj hluav taws xob nrog kev cuam tshuam loj heev thiab muaj kev cuam tshuam lub zog ntawm 1